; RUN: llc < %s -mtriple=ve | FileCheck %s
;;; Test ‘llvm.fabs.*’ Intrinsic
;;;
;;; Syntax:
;;; This is an overloaded intrinsic. You can use llvm.fabs on any
;;; floating-point or vector of floating-point type. Not all targets
;;; support all types however.
;;;
;;; declare float @llvm.fabs.f32(float %Val)
;;; declare double @llvm.fabs.f64(double %Val)
;;; declare x86_fp80 @llvm.fabs.f80(x86_fp80 %Val)
;;; declare fp128 @llvm.fabs.f128(fp128 %Val)
;;; declare ppc_fp128 @llvm.fabs.ppcf128(ppc_fp128 %Val)
;;;
;;; Overview:
;;; The ‘llvm.fabs.*’ intrinsics return the absolute value of the operand.
;;;
;;; Arguments:
;;; The argument and return value are floating-point numbers of the same
;;; type.
;;;
;;; Semantics:
;;; This function returns the same values as the libm fabs functions would,
;;; and handles error conditions in the same way.
;;;
;;; Note:
;;; We test only float/double/fp128.
; Function Attrs: nounwind readnone
define float @fabs_float_var(float %0) {
; CHECK-LABEL: fabs_float_var:
; CHECK: # %bb.0:
; CHECK-NEXT: sra.l %s0, %s0, 32
; CHECK-NEXT: and %s0, %s0, (33)0
; CHECK-NEXT: sll %s0, %s0, 32
; CHECK-NEXT: b.l.t (, %s10)
%2 = tail call fast float @llvm.fabs.f32(float %0)
ret float %2
}
; Function Attrs: nounwind readnone speculatable willreturn
declare float @llvm.fabs.f32(float)
; Function Attrs: nounwind readnone
define double @fabs_double_var(double %0) {
; CHECK-LABEL: fabs_double_var:
; CHECK: # %bb.0:
; CHECK-NEXT: and %s0, %s0, (1)0
; CHECK-NEXT: b.l.t (, %s10)
%2 = tail call fast double @llvm.fabs.f64(double %0)
ret double %2
}
; Function Attrs: nounwind readnone speculatable willreturn
declare double @llvm.fabs.f64(double)
; Function Attrs: nounwind readnone
define fp128 @fabs_quad_var(fp128 %0) {
; CHECK-LABEL: fabs_quad_var:
; CHECK: .LBB{{[0-9]+}}_2:
; CHECK-NEXT: st %s1, (, %s11)
; CHECK-NEXT: st %s0, 8(, %s11)
; CHECK-NEXT: ld1b.zx %s0, 15(, %s11)
; CHECK-NEXT: and %s0, %s0, (57)0
; CHECK-NEXT: st1b %s0, 15(, %s11)
; CHECK-NEXT: ld %s1, (, %s11)
; CHECK-NEXT: ld %s0, 8(, %s11)
; CHECK-NEXT: adds.l %s11, 16, %s11
; CHECK-NEXT: b.l.t (, %s10)
%2 = tail call fast fp128 @llvm.fabs.f128(fp128 %0)
ret fp128 %2
}
; Function Attrs: nounwind readnone speculatable willreturn
declare fp128 @llvm.fabs.f128(fp128)
; Function Attrs: norecurse nounwind readnone
define float @fabs_float_zero() {
; CHECK-LABEL: fabs_float_zero:
; CHECK: # %bb.0:
; CHECK-NEXT: lea.sl %s0, 0
; CHECK-NEXT: b.l.t (, %s10)
ret float 0.000000e+00
}
; Function Attrs: norecurse nounwind readnone
define double @fabs_double_zero() {
; CHECK-LABEL: fabs_double_zero:
; CHECK: # %bb.0:
; CHECK-NEXT: lea.sl %s0, 0
; CHECK-NEXT: b.l.t (, %s10)
ret double 0.000000e+00
}
; Function Attrs: norecurse nounwind readnone
define fp128 @fabs_quad_zero() {
; CHECK-LABEL: fabs_quad_zero:
; CHECK: # %bb.0:
; CHECK-NEXT: lea %s0, .LCPI{{[0-9]+}}_0@lo
; CHECK-NEXT: and %s0, %s0, (32)0
; CHECK-NEXT: lea.sl %s2, .LCPI{{[0-9]+}}_0@hi(, %s0)
; CHECK-NEXT: ld %s0, 8(, %s2)
; CHECK-NEXT: ld %s1, (, %s2)
; CHECK-NEXT: b.l.t (, %s10)
ret fp128 0xL00000000000000000000000000000000
}
; Function Attrs: norecurse nounwind readnone
define float @fabs_float_const() {
; CHECK-LABEL: fabs_float_const:
; CHECK: # %bb.0:
; CHECK-NEXT: lea.sl %s0, 1073741824
; CHECK-NEXT: b.l.t (, %s10)
ret float 2.000000e+00
}
; Function Attrs: norecurse nounwind readnone
define double @fabs_double_const() {
; CHECK-LABEL: fabs_double_const:
; CHECK: # %bb.0:
; CHECK-NEXT: lea.sl %s0, 1073741824
; CHECK-NEXT: b.l.t (, %s10)
ret double 2.000000e+00
}
; Function Attrs: nounwind readnone
define fp128 @fabs_quad_const() {
; CHECK-LABEL: fabs_quad_const:
; CHECK: # %bb.0:
; CHECK-NEXT: lea %s0, .LCPI{{[0-9]+}}_0@lo
; CHECK-NEXT: and %s0, %s0, (32)0
; CHECK-NEXT: lea.sl %s2, .LCPI{{[0-9]+}}_0@hi(, %s0)
; CHECK-NEXT: ld %s0, 8(, %s2)
; CHECK-NEXT: ld %s1, (, %s2)
; CHECK-NEXT: b.l.t (, %s10)
%1 = tail call fast fp128 @llvm.fabs.f128(fp128 0xL0000000000000000C000000000000000)
ret fp128 %1
}
Codebase Browser
llvm