; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
;
; constrained fsub
;
;
; fsub X, +0 ==> X
;
define float @fsub_x_p0_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_x_p0_defaultenv(
; CHECK-NEXT: ret float [[A:%.*]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_x_p0_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_x_p0_ebmaytrap(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
define float @fsub_nnan_x_p0_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_nnan_x_p0_ebmaytrap(
; CHECK-NEXT: ret float [[A:%.*]]
;
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_x_p0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_x_p0_ebstrict(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; The instruction is expected to remain, but the result isn't used.
define float @fsub_nnan_x_p0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_nnan_x_p0_ebstrict(
; CHECK-NEXT: [[RET:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[A]]
;
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; Test with a fast math flag set but that flag is not "nnan".
define float @fsub_ninf_x_p0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_ninf_x_p0_ebstrict(
; CHECK-NEXT: [[RET:%.*]] = call ninf float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call ninf float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; Round to -inf and if x is zero then the result is -0.0: must not fire
define float @fsub_x_p0_neginf(float %a) #0 {
; CHECK-LABEL: @fsub_x_p0_neginf(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.downward", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.downward", metadata !"fpexcept.ignore")
ret float %ret
}
; Dynamic rounding means the rounding mode might be to -inf:
; Round to -inf and if x is zero then the result is -0.0: must not fire
define float @fsub_x_p0_dynamic(float %a) #0 {
; CHECK-LABEL: @fsub_x_p0_dynamic(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float 0.000000e+00, metadata !"round.dynamic", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.dynamic", metadata !"fpexcept.ignore")
ret float %ret
}
; With nsz we don't have to worry about -0.0 so the transform is valid.
define float @fsub_nsz_x_p0_neginf(float %a) #0 {
; CHECK-LABEL: @fsub_nsz_x_p0_neginf(
; CHECK-NEXT: ret float [[A:%.*]]
;
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.downward", metadata !"fpexcept.ignore")
ret float %ret
}
; With nsz we don't have to worry about -0.0 so the transform is valid.
define float @fsub_nsz_x_p0_dynamic(float %a) #0 {
; CHECK-LABEL: @fsub_nsz_x_p0_dynamic(
; CHECK-NEXT: ret float [[A:%.*]]
;
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float %a, float 0.0, metadata !"round.dynamic", metadata !"fpexcept.ignore")
ret float %ret
}
;
; fsub X, -0 ==> X, when we know X is not -0
; (fast math flag: nsz)
;
define float @fold_fsub_nsz_x_n0_defaultenv(float %a) #0 {
; CHECK-LABEL: @fold_fsub_nsz_x_n0_defaultenv(
; CHECK-NEXT: ret float [[A:%.*]]
;
%sub = call nsz float @llvm.experimental.constrained.fsub.f32(float %a, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %sub
}
; Missing nnan: must not fire.
define float @fold_fsub_nsz_x_n0_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fold_fsub_nsz_x_n0_ebmaytrap(
; CHECK-NEXT: [[SUB:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[SUB]]
;
%sub = call nsz float @llvm.experimental.constrained.fsub.f32(float %a, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %sub
}
define float @fold_fsub_nnan_nsz_x_n0_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fold_fsub_nnan_nsz_x_n0_ebmaytrap(
; CHECK-NEXT: ret float [[A:%.*]]
;
%sub = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float %a, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %sub
}
; Missing nnan: must not fire.
define float @fold_fsub_nsz_x_n0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fold_fsub_nsz_x_n0_ebstrict(
; CHECK-NEXT: [[SUB:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[SUB]]
;
%sub = call nsz float @llvm.experimental.constrained.fsub.f32(float %a, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %sub
}
; The instruction is expected to remain, but the result isn't used.
define float @fold_fsub_nsz_nnan_x_n0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fold_fsub_nsz_nnan_x_n0_ebstrict(
; CHECK-NEXT: [[SUB:%.*]] = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[A]]
;
%sub = call nsz nnan float @llvm.experimental.constrained.fsub.f32(float %a, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %sub
}
;
; fsub X, -0 ==> X, when we know X is not -0
; (No "nsz" flags)
;
define float @fold_fsub_fabs_x_n0_defaultenv(float %a) #0 {
; CHECK-LABEL: @fold_fsub_fabs_x_n0_defaultenv(
; CHECK-NEXT: [[ABSA:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]]) #[[ATTR0:[0-9]+]]
; CHECK-NEXT: ret float [[ABSA]]
;
%absa = call float @llvm.fabs.f32(float %a) #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %absa, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %sub
}
; Missing nnan: must not fire.
define float @fold_fsub_fabs_x_n0_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fold_fsub_fabs_x_n0_ebmaytrap(
; CHECK-NEXT: [[ABSA:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]]) #[[ATTR0]]
; CHECK-NEXT: [[SUB:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[ABSA]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[SUB]]
;
%absa = call float @llvm.fabs.f32(float %a) #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %absa, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %sub
}
define float @fold_fsub_fabs_nnan_x_n0_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fold_fsub_fabs_nnan_x_n0_ebmaytrap(
; CHECK-NEXT: [[ABSA:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]]) #[[ATTR0]]
; CHECK-NEXT: ret float [[ABSA]]
;
%absa = call float @llvm.fabs.f32(float %a) #0
%sub = call nnan float @llvm.experimental.constrained.fsub.f32(float %absa, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %sub
}
; Missing nnan: must not fire.
define float @fold_fsub_fabs_x_n0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fold_fsub_fabs_x_n0_ebstrict(
; CHECK-NEXT: [[ABSA:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]]) #[[ATTR0]]
; CHECK-NEXT: [[SUB:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[ABSA]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[SUB]]
;
%absa = call float @llvm.fabs.f32(float %a) #0
%sub = call float @llvm.experimental.constrained.fsub.f32(float %absa, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %sub
}
; The instruction is expected to remain, but the result isn't used.
define float @fold_fsub_fabs_nnan_x_n0_ebstrict(float %a) #0 {
; CHECK-LABEL: @fold_fsub_fabs_nnan_x_n0_ebstrict(
; CHECK-NEXT: [[ABSA:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]]) #[[ATTR0]]
; CHECK-NEXT: [[SUB:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float [[ABSA]], float -0.000000e+00, metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[ABSA]]
;
%absa = call float @llvm.fabs.f32(float %a) #0
%sub = call nnan float @llvm.experimental.constrained.fsub.f32(float %absa, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %sub
}
define float @fold_fsub_sitofp_x_n0_defaultenv(i32 %a) #0 {
; CHECK-LABEL: @fold_fsub_sitofp_x_n0_defaultenv(
; CHECK-NEXT: [[FPA:%.*]] = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[FPA]]
;
%fpa = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %a, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%sub = call float @llvm.experimental.constrained.fsub.f32(float %fpa, float -0.0, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %sub
}
;
; fsub -0.0, (fneg X) ==> X
;
define float @fsub_fneg_n0_fnX_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_n0_fnX_defaultenv(
; CHECK-NEXT: ret float [[A:%.*]]
;
%nega = fneg float %a
%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fneg_n0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_n0_fnX_ebmaytrap(
; CHECK-NEXT: [[NEGA:%.*]] = fneg float [[A:%.*]]
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%nega = fneg float %a
%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
define float @fsub_fneg_nnan_n0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nnan_n0_fnX_ebmaytrap(
; CHECK-NEXT: ret float [[A:%.*]]
;
%nega = fneg float %a
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fneg_n0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_n0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = fneg float [[A:%.*]]
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%nega = fneg float %a
%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; The instruction is expected to remain, but the result isn't used.
define float @fsub_fneg_nnan_n0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nnan_n0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = fneg float [[A:%.*]]
; CHECK-NEXT: [[RET:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[A]]
;
%nega = fneg float %a
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
;
; fsub -0.0, (fsub -0.0, X) ==> X
;
; TODO: This won't fire without m_FNeg() knowing the constrained intrinsics.
define float @fsub_fsub_n0_fnX_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_n0_fnX_defaultenv(
; CHECK-NEXT: [[NEGA:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fsub_n0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_n0_fnX_ebmaytrap(
; CHECK-NEXT: [[NEGA:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; TODO: This won't fire without m_FNeg() knowing the constrained intrinsics.
define float @fsub_fsub_nnan_n0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_nnan_n0_fnX_ebmaytrap(
; CHECK-NEXT: [[NEGA:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fsub_n0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_n0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; TODO: This won't fire without m_FNeg() knowing the constrained intrinsics.
define float @fsub_fsub_nnan_n0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_nnan_n0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float -0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
;
; fsub 0.0, (fneg X) ==> X if signed zeros are ignored.
;
define float @fsub_fneg_nsz_p0_fnX_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nsz_p0_fnX_defaultenv(
; CHECK-NEXT: ret float [[A:%.*]]
;
%nega = fneg float %a
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fneg_nsz_p0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nsz_p0_fnX_ebmaytrap(
; CHECK-NEXT: [[NEGA:%.*]] = fneg float [[A:%.*]]
; CHECK-NEXT: [[RET:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%nega = fneg float %a
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
define float @fsub_fneg_nsz_nnan_p0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nsz_nnan_p0_fnX_ebmaytrap(
; CHECK-NEXT: ret float [[A:%.*]]
;
%nega = fneg float %a
%ret = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fneg_nsz_p0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nsz_p0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = fneg float [[A:%.*]]
; CHECK-NEXT: [[RET:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%nega = fneg float %a
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; The instruction is expected to remain, but the result isn't used.
define float @fsub_fneg_nnan_nsz_p0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fneg_nnan_nsz_p0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = fneg float [[A:%.*]]
; CHECK-NEXT: [[RET:%.*]] = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[A]]
;
%nega = fneg float %a
%ret = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
;
; fsub 0.0, (fsub 0.0, X) ==> X if signed zeros are ignored.
;
; TODO: Need constrained intrinsic support in m_FNeg() and m_FSub to fire.
define float @fsub_fsub_p0_nsz_fnX_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_p0_nsz_fnX_defaultenv(
; CHECK-NEXT: [[NEGA:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: [[RET:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fsub_nsz_p0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_nsz_p0_fnX_ebmaytrap(
; CHECK-NEXT: [[NEGA:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_FNeg() and m_FSub to fire.
define float @fsub_fsub_nnan_nsz_p0_fnX_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_nnan_nsz_p0_fnX_ebmaytrap(
; CHECK-NEXT: [[NEGA:%.*]] = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_fsub_nsz_p0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_nsz_p0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_FNeg() and m_FSub to fire.
define float @fsub_fsub_nnan_nsz_p0_fnX_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_fsub_nnan_nsz_p0_fnX_ebstrict(
; CHECK-NEXT: [[NEGA:%.*]] = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[A:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.000000e+00, float [[NEGA]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%nega = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call nnan nsz float @llvm.experimental.constrained.fsub.f32(float 0.0, float %nega, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
;
; fsub nnan x, x ==> 0.0
;
; Missing nnan: must not fire.
define float @fsub_x_x_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_x_x_defaultenv(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
define float @fsub_nnan_x_x_defaultenv(float %a) #0 {
; CHECK-LABEL: @fsub_nnan_x_x_defaultenv(
; CHECK-NEXT: ret float 0.000000e+00
;
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_x_x_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_x_x_ebmaytrap(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; TODO: This will fold if we allow non-default floating point environments.
define float @fsub_nnan_x_x_ebmaytrap(float %a) #0 {
; CHECK-LABEL: @fsub_nnan_x_x_ebmaytrap(
; CHECK-NEXT: [[RET:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nnan: must not fire.
define float @fsub_x_x_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_x_x_ebstrict(
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; TODO: This will fold if we allow non-default floating point environments.
; The instruction is expected to remain, but the result isn't used.
define float @fsub_nnan_x_x_ebstrict(float %a) #0 {
; CHECK-LABEL: @fsub_nnan_x_x_ebstrict(
; CHECK-NEXT: [[RET:%.*]] = call nnan float @llvm.experimental.constrained.fsub.f32(float [[A:%.*]], float [[A]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%ret = call nnan float @llvm.experimental.constrained.fsub.f32(float %a, float %a, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
;
; Y - (Y - X) --> X
;
; Missing nsz and reassoc: must not fire
define float @fsub_fsub_y_x_x_defaultenv(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_y_x_x_defaultenv(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%ret = call float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_c_FAdd() and m_FSub to fire.
define float @fsub_fsub_fmf_y_x_x_defaultenv(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_fmf_y_x_x_defaultenv(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; TODO: Consider how alternate rounding modes can break these transforms.
; The "fpexcept.maytrap" instruction must _not_ be folded into the
; "fpexcept.ignore" instruction. This must not fire.
define float @fsub_fsub_fmf_y_x_x_ebmaytrap_defaultenv(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_fmf_y_x_x_ebmaytrap_defaultenv(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nsz and reassoc: must not fire
define float @fsub_fsub_y_x_x_ebmaytrap(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_y_x_x_ebmaytrap(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_c_FAdd() and m_FSub to fire.
define float @fsub_fsub_fmf_y_x_x_ebmaytrap(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_fmf_y_x_x_ebmaytrap(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nsz and reassoc: must not fire
define float @fsub_fsub_y_x_x_ebstrict(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_y_x_x_ebstrict(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_c_FAdd() and m_FSub to fire.
define float @fsub_fsub_fmf_y_x_x_ebstrict(float %x, float %y) #0 {
; CHECK-LABEL: @fsub_fsub_fmf_y_x_x_ebstrict(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[Y:%.*]], float [[X:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[Y]], float [[INNER]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fsub.f32(float %y, float %x, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %y, float %inner, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
;
; (X + Y) - Y --> X
; TODO: Missing IR matcher support means these won't fire.
;
; Missing nsz and reassoc: must not fire
define float @fadd_fsub_x_y_y_defaultenv(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_x_y_y_defaultenv(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%ret = call float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_c_FAdd() and m_FSub to fire.
define float @fadd_fsub_fmf_x_y_y_defaultenv(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_fmf_x_y_y_defaultenv(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; The "fpexcept.maytrap" instruction must _not_ be folded into the
; "fpexcept.ignore" instruction. This must not fire.
define float @fadd_fsub_fmf_x_y_y_ebmaytrap_defaultenv(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_fmf_x_y_y_ebmaytrap_defaultenv(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.ignore")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.ignore")
ret float %ret
}
; Missing nsz and reassoc: must not fire
define float @fadd_fsub_x_y_y_ebmaytrap(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_x_y_y_ebmaytrap(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_c_FAdd() and m_FSub to fire.
define float @fadd_fsub_fmf_x_y_y_ebmaytrap(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_fmf_x_y_y_ebmaytrap(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.maytrap")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.maytrap")
ret float %ret
}
; Missing nsz and reassoc: must not fire
define float @fadd_fsub_x_y_y_ebstrict(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_x_y_y_ebstrict(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
; TODO: Need constrained intrinsic support in m_c_FAdd() and m_FSub to fire.
define float @fadd_fsub_fmf_x_y_y_ebstrict(float %x, float %y) #0 {
; CHECK-LABEL: @fadd_fsub_fmf_x_y_y_ebstrict(
; CHECK-NEXT: [[INNER:%.*]] = call float @llvm.experimental.constrained.fadd.f32(float [[X:%.*]], float [[Y:%.*]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: [[RET:%.*]] = call reassoc nsz float @llvm.experimental.constrained.fsub.f32(float [[INNER]], float [[Y]], metadata !"round.tonearest", metadata !"fpexcept.strict")
; CHECK-NEXT: ret float [[RET]]
;
%inner = call float @llvm.experimental.constrained.fadd.f32(float %x, float %y, metadata !"round.tonearest", metadata !"fpexcept.strict")
%ret = call nsz reassoc float @llvm.experimental.constrained.fsub.f32(float %inner, float %y, metadata !"round.tonearest", metadata !"fpexcept.strict")
ret float %ret
}
declare float @llvm.fabs.f32(float)
declare <2 x float> @llvm.fabs.v2f32(<2 x float>)
declare float @llvm.experimental.constrained.fadd.f32(float, float, metadata, metadata)
declare float @llvm.experimental.constrained.fsub.f32(float, float, metadata, metadata)
declare float @llvm.experimental.constrained.sitofp.f32.i32(i32, metadata, metadata)
attributes #0 = { strictfp }
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