; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=instcombine -S -o - %s | FileCheck %s
target datalayout="p5:32:32-A5"
@g1 = constant [32 x i8] zeroinitializer
@g2 = addrspace(1) constant [32 x i8] zeroinitializer
define i8 @remove_alloca_use_arg(i1 %cond) {
; CHECK-LABEL: @remove_alloca_use_arg(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[SINK:%.*]]
; CHECK: else:
; CHECK-NEXT: br label [[SINK]]
; CHECK: sink:
; CHECK-NEXT: [[PTR1:%.*]] = phi ptr [ getelementptr inbounds (i8, ptr @g1, i64 2), [[IF]] ], [ getelementptr inbounds (i8, ptr @g1, i64 1), [[ELSE]] ]
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr [[PTR1]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8], align 4, addrspace(1)
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 32, i1 false)
br i1 %cond, label %if, label %else
if:
%val.if = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 2
br label %sink
else:
%val.else = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 1
br label %sink
sink:
%ptr = phi ptr addrspace(1) [ %val.if, %if ], [ %val.else, %else ]
%load = load i8, ptr addrspace(1) %ptr
ret i8 %load
}
define i8 @volatile_load_keep_alloca(i1 %cond) {
; CHECK-LABEL: @volatile_load_keep_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 4, addrspace(1)
; CHECK-NEXT: call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) noundef align 4 dereferenceable(32) [[ALLOCA]], ptr noundef nonnull align 16 dereferenceable(32) @g1, i64 32, i1 false)
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
; CHECK: if:
; CHECK-NEXT: [[VAL_IF:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[ALLOCA]], i64 1
; CHECK-NEXT: br label [[SINK:%.*]]
; CHECK: else:
; CHECK-NEXT: [[VAL_ELSE:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[ALLOCA]], i64 2
; CHECK-NEXT: br label [[SINK]]
; CHECK: sink:
; CHECK-NEXT: [[PTR:%.*]] = phi ptr addrspace(1) [ [[VAL_IF]], [[IF]] ], [ [[VAL_ELSE]], [[ELSE]] ]
; CHECK-NEXT: [[LOAD:%.*]] = load volatile i8, ptr addrspace(1) [[PTR]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8], align 4, addrspace(1)
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 32, i1 false)
br i1 %cond, label %if, label %else
if:
%val.if = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 1
br label %sink
else:
%val.else = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 2
br label %sink
sink:
%ptr = phi ptr addrspace(1) [ %val.if, %if ], [ %val.else, %else ]
%load = load volatile i8, ptr addrspace(1) %ptr
ret i8 %load
}
define i8 @no_memcpy_keep_alloca(i1 %cond) {
; CHECK-LABEL: @no_memcpy_keep_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 4, addrspace(1)
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[ELSE:%.*]]
; CHECK: if:
; CHECK-NEXT: [[VAL_IF:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[ALLOCA]], i64 1
; CHECK-NEXT: br label [[SINK:%.*]]
; CHECK: else:
; CHECK-NEXT: [[VAL_ELSE:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[ALLOCA]], i64 2
; CHECK-NEXT: br label [[SINK]]
; CHECK: sink:
; CHECK-NEXT: [[PTR:%.*]] = phi ptr addrspace(1) [ [[VAL_IF]], [[IF]] ], [ [[VAL_ELSE]], [[ELSE]] ]
; CHECK-NEXT: [[LOAD:%.*]] = load volatile i8, ptr addrspace(1) [[PTR]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8], align 4, addrspace(1)
br i1 %cond, label %if, label %else
if:
%val.if = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 1
br label %sink
else:
%val.else = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 2
br label %sink
sink:
%ptr = phi ptr addrspace(1) [ %val.if, %if ], [ %val.else, %else ]
%load = load volatile i8, ptr addrspace(1) %ptr
ret i8 %load
}
define i8 @loop_phi_remove_alloca(i1 %cond) {
; CHECK-LABEL: @loop_phi_remove_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB_0:%.*]]
; CHECK: bb.0:
; CHECK-NEXT: [[PTR1:%.*]] = phi ptr [ getelementptr inbounds (i8, ptr @g1, i64 1), [[ENTRY:%.*]] ], [ getelementptr inbounds (i8, ptr @g1, i64 2), [[BB_1:%.*]] ]
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB_1]], label [[EXIT:%.*]]
; CHECK: bb.1:
; CHECK-NEXT: br label [[BB_0]]
; CHECK: exit:
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr [[PTR1]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8], align 4, addrspace(1)
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 32, i1 false)
%val1 = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 1
br label %bb.0
bb.0:
%ptr = phi ptr addrspace(1) [ %val1, %entry ], [ %val2, %bb.1 ]
br i1 %cond, label %bb.1, label %exit
bb.1:
%val2 = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 2
br label %bb.0
exit:
%load = load i8, ptr addrspace(1) %ptr
ret i8 %load
}
define i32 @remove_alloca_ptr_arg(i1 %c, ptr %ptr) {
; CHECK-LABEL: @remove_alloca_ptr_arg(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[IF:%.*]], label [[JOIN:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ @g1, [[IF]] ], [ [[PTR:%.*]], [[ENTRY:%.*]] ]
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[PHI]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%alloca = alloca [32 x i8]
call void @llvm.memcpy.p0.p0.i64(ptr %alloca, ptr @g1, i64 32, i1 false)
br i1 %c, label %if, label %join
if:
br label %join
join:
%phi = phi ptr [ %alloca, %if ], [ %ptr, %entry ]
%v = load i32, ptr %phi
ret i32 %v
}
define i8 @loop_phi_late_memtransfer_remove_alloca(i1 %cond) {
; CHECK-LABEL: @loop_phi_late_memtransfer_remove_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB_0:%.*]]
; CHECK: bb.0:
; CHECK-NEXT: [[PTR1:%.*]] = phi ptr [ getelementptr inbounds (i8, ptr @g1, i64 1), [[ENTRY:%.*]] ], [ getelementptr inbounds (i8, ptr @g1, i64 2), [[BB_1:%.*]] ]
; CHECK-NEXT: br i1 [[COND:%.*]], label [[BB_1]], label [[EXIT:%.*]]
; CHECK: bb.1:
; CHECK-NEXT: br label [[BB_0]]
; CHECK: exit:
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr [[PTR1]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8], align 4, addrspace(1)
%val1 = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 1
br label %bb.0
bb.0:
%ptr = phi ptr addrspace(1) [ %val1, %entry ], [ %val2, %bb.1 ]
br i1 %cond, label %bb.1, label %exit
bb.1:
%val2 = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 2
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 32, i1 false)
br label %bb.0
exit:
%load = load i8, ptr addrspace(1) %ptr
ret i8 %load
}
define i32 @test_memcpy_after_phi(i1 %cond, ptr %ptr) {
; CHECK-LABEL: @test_memcpy_after_phi(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [32 x i8], align 1
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[JOIN:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[IF]] ], [ [[PTR:%.*]], [[ENTRY:%.*]] ]
; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(32) [[PHI]], ptr noundef nonnull align 16 dereferenceable(32) @g1, i64 32, i1 false)
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[PHI]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%a = alloca [32 x i8]
br i1 %cond, label %if, label %join
if:
br label %join
join:
%phi = phi ptr [ %a, %if ], [ %ptr, %entry ]
call void @llvm.memcpy.p0.p0.i64(ptr %phi, ptr @g1, i64 32, i1 false)
%v = load i32, ptr %phi
ret i32 %v
}
define i32 @addrspace_diff_keep_alloca(i1 %cond, ptr %x) {
; CHECK-LABEL: @addrspace_diff_keep_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [32 x i8], align 1
; CHECK-NEXT: call void @llvm.memcpy.p0.p1.i64(ptr noundef nonnull align 1 dereferenceable(32) [[A]], ptr addrspace(1) noundef align 16 dereferenceable(32) @g2, i64 32, i1 false)
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[JOIN:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[A]], [[IF]] ], [ [[X:%.*]], [[ENTRY:%.*]] ]
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[PHI]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%a = alloca [32 x i8]
call void @llvm.memcpy.p0.p1.i64(ptr %a, ptr addrspace(1) @g2, i64 32, i1 false)
br i1 %cond, label %if, label %join
if:
br label %join
join:
%phi = phi ptr [ %a, %if ], [ %x, %entry ]
%v = load i32, ptr %phi
ret i32 %v
}
define i32 @addrspace_diff_keep_alloca_extra_gep(i1 %cond, ptr %x) {
; CHECK-LABEL: @addrspace_diff_keep_alloca_extra_gep(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca [32 x i8], align 1
; CHECK-NEXT: call void @llvm.memcpy.p0.p1.i64(ptr noundef nonnull align 1 dereferenceable(32) [[A]], ptr addrspace(1) noundef align 16 dereferenceable(32) @g2, i64 32, i1 false)
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[JOIN:%.*]]
; CHECK: if:
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 4
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[GEP]], [[IF]] ], [ [[X:%.*]], [[ENTRY:%.*]] ]
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[PHI]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%a = alloca [32 x i8]
call void @llvm.memcpy.p0.p1.i64(ptr %a, ptr addrspace(1) @g2, i64 32, i1 false)
%gep = getelementptr i8, ptr %a, i64 4
br i1 %cond, label %if, label %join
if:
br label %join
join:
%phi = phi ptr [ %gep, %if ], [ %x, %entry ]
%v = load i32, ptr %phi
ret i32 %v
}
define i32 @addrspace_diff_remove_alloca(i1 %cond) {
; CHECK-LABEL: @addrspace_diff_remove_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[COND:%.*]], label [[IF:%.*]], label [[JOIN:%.*]]
; CHECK: if:
; CHECK-NEXT: br label [[JOIN]]
; CHECK: join:
; CHECK-NEXT: [[PHI1:%.*]] = phi ptr addrspace(1) [ @g2, [[IF]] ], [ getelementptr inbounds (i8, ptr addrspace(1) @g2, i64 2), [[ENTRY:%.*]] ]
; CHECK-NEXT: [[V:%.*]] = load i32, ptr addrspace(1) [[PHI1]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%a = alloca [32 x i8]
call void @llvm.memcpy.p0.p1.i64(ptr %a, ptr addrspace(1) @g2, i64 32, i1 false)
%gep = getelementptr inbounds [32 x i8], ptr %a, i32 0, i32 2
br i1 %cond, label %if, label %join
if:
br label %join
join:
%phi = phi ptr [ %a, %if ], [ %gep, %entry ]
%v = load i32, ptr %phi
ret i32 %v
}
define i32 @phi_loop(i1 %c) {
; CHECK-LABEL: @phi_loop(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[PTR:%.*]] = phi ptr [ @g1, [[ENTRY:%.*]] ], [ [[PTR_NEXT:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[PTR_NEXT]] = getelementptr i8, ptr [[PTR]], i64 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[LOOP]]
; CHECK: exit:
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%alloca = alloca [32 x i8]
call void @llvm.memcpy.p0.p0.i64(ptr %alloca, ptr @g1, i64 32, i1 false)
br label %loop
loop:
%ptr = phi ptr [ %alloca, %entry ], [ %ptr.next, %loop ]
%ptr.next = getelementptr i8, ptr %ptr, i64 4
br i1 %c, label %exit, label %loop
exit:
%v = load i32, ptr %ptr
ret i32 %v
}
define i32 @phi_loop_different_addrspace(i1 %c) {
; CHECK-LABEL: @phi_loop_different_addrspace(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 1
; CHECK-NEXT: call void @llvm.memcpy.p0.p1.i64(ptr noundef nonnull align 1 dereferenceable(32) [[ALLOCA]], ptr addrspace(1) noundef align 16 dereferenceable(32) @g2, i64 32, i1 false)
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[PTR:%.*]] = phi ptr [ [[ALLOCA]], [[ENTRY:%.*]] ], [ [[PTR_NEXT:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[PTR_NEXT]] = getelementptr i8, ptr [[PTR]], i64 4
; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[LOOP]]
; CHECK: exit:
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT: ret i32 [[V]]
;
entry:
%alloca = alloca [32 x i8]
call void @llvm.memcpy.p0.p1.i64(ptr %alloca, ptr addrspace(1) @g2, i64 32, i1 false)
br label %loop
loop:
%ptr = phi ptr [ %alloca, %entry ], [ %ptr.next, %loop ]
%ptr.next = getelementptr i8, ptr %ptr, i64 4
br i1 %c, label %exit, label %loop
exit:
%v = load i32, ptr %ptr
ret i32 %v
}
define i8 @select_same_addrspace_remove_alloca(i1 %cond, ptr %p) {
; CHECK-LABEL: @select_same_addrspace_remove_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[PTR:%.*]] = select i1 [[COND:%.*]], ptr @g1, ptr [[P:%.*]]
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr [[PTR]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8]
call void @llvm.memcpy.p0.p0.i64(ptr %alloca, ptr @g1, i64 32, i1 false)
%ptr = select i1 %cond, ptr %alloca, ptr %p
%load = load i8, ptr %ptr
ret i8 %load
}
define i8 @select_after_memcpy_keep_alloca(i1 %cond, ptr %p) {
; CHECK-LABEL: @select_after_memcpy_keep_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 1
; CHECK-NEXT: [[PTR:%.*]] = select i1 [[COND:%.*]], ptr [[ALLOCA]], ptr [[P:%.*]]
; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 1 dereferenceable(32) [[PTR]], ptr noundef nonnull align 16 dereferenceable(32) @g1, i64 32, i1 false)
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr [[PTR]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8]
%ptr = select i1 %cond, ptr %alloca, ptr %p
call void @llvm.memcpy.p0.p0.i64(ptr %ptr, ptr @g1, i64 32, i1 false)
%load = load i8, ptr %ptr
ret i8 %load
}
define i8 @select_diff_addrspace_keep_alloca(i1 %cond, ptr addrspace(1) %p) {
; CHECK-LABEL: @select_diff_addrspace_keep_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 1, addrspace(1)
; CHECK-NEXT: call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) noundef align 1 dereferenceable(32) [[ALLOCA]], ptr noundef nonnull align 16 dereferenceable(32) @g1, i64 32, i1 false)
; CHECK-NEXT: [[PTR:%.*]] = select i1 [[COND:%.*]], ptr addrspace(1) [[ALLOCA]], ptr addrspace(1) [[P:%.*]]
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr addrspace(1) [[PTR]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8], addrspace(1)
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 32, i1 false)
%ptr = select i1 %cond, ptr addrspace(1) %alloca, ptr addrspace(1) %p
%load = load i8, ptr addrspace(1) %ptr
ret i8 %load
}
define i8 @select_diff_addrspace_remove_alloca(i1 %cond, ptr %p) {
; CHECK-LABEL: @select_diff_addrspace_remove_alloca(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i8 0
;
entry:
%alloca = alloca [32 x i8]
call void @llvm.memcpy.p0.p1.i64(ptr %alloca, ptr addrspace(1) @g2, i64 32, i1 false)
%gep = getelementptr inbounds [32 x i8], ptr %alloca, i32 0, i32 2
%sel = select i1 %cond, ptr %alloca, ptr %gep
%gep2 = getelementptr inbounds i8, ptr %sel, i64 4
%load = load i8, ptr %gep2
ret i8 %load
}
define i8 @select_diff_addrspace_remove_alloca_asan(i1 %cond, ptr %p) sanitize_address {
; CHECK-LABEL: @select_diff_addrspace_remove_alloca_asan(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[GEP2:%.*]] = select i1 [[COND:%.*]], ptr addrspace(1) getelementptr inbounds (i8, ptr addrspace(1) @g2, i64 4), ptr addrspace(1) getelementptr inbounds (i8, ptr addrspace(1) @g2, i64 6)
; CHECK-NEXT: [[LOAD:%.*]] = load i8, ptr addrspace(1) [[GEP2]], align 1
; CHECK-NEXT: ret i8 [[LOAD]]
;
entry:
%alloca = alloca [32 x i8]
call void @llvm.memcpy.p0.p1.i64(ptr %alloca, ptr addrspace(1) @g2, i64 32, i1 false)
%gep = getelementptr inbounds [32 x i8], ptr %alloca, i32 0, i32 2
%sel = select i1 %cond, ptr %alloca, ptr %gep
%gep2 = getelementptr inbounds i8, ptr %sel, i64 4
%load = load i8, ptr %gep2
ret i8 %load
}
declare i8 @readonly_callee(ptr readonly nocapture)
; FIXME: This should be able to fold to call i8 @readonly_callee(ptr nonnull @g1)
define i8 @call_readonly_remove_alloca() {
; CHECK-LABEL: @call_readonly_remove_alloca(
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 1, addrspace(1)
; CHECK-NEXT: call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) noundef align 1 dereferenceable(32) [[ALLOCA]], ptr noundef nonnull align 16 dereferenceable(32) @g1, i64 32, i1 false)
; CHECK-NEXT: [[P:%.*]] = addrspacecast ptr addrspace(1) [[ALLOCA]] to ptr
; CHECK-NEXT: [[V:%.*]] = call i8 @readonly_callee(ptr [[P]])
; CHECK-NEXT: ret i8 [[V]]
;
%alloca = alloca [32 x i8], addrspace(1)
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 32, i1 false)
%p = addrspacecast ptr addrspace(1) %alloca to ptr
%v = call i8 @readonly_callee(ptr %p)
ret i8 %v
}
define i8 @call_readonly_keep_alloca2() {
; CHECK-LABEL: @call_readonly_keep_alloca2(
; CHECK-NEXT: [[ALLOCA:%.*]] = alloca [32 x i8], align 1, addrspace(1)
; CHECK-NEXT: call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) noundef align 1 dereferenceable(16) [[ALLOCA]], ptr noundef nonnull align 16 dereferenceable(16) @g1, i64 16, i1 false)
; CHECK-NEXT: [[A1:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[ALLOCA]], i64 16
; CHECK-NEXT: call void @llvm.memcpy.p1.p1.i64(ptr addrspace(1) noundef align 1 dereferenceable(16) [[A1]], ptr addrspace(1) noundef align 16 dereferenceable(16) @g2, i64 16, i1 false)
; CHECK-NEXT: [[P:%.*]] = addrspacecast ptr addrspace(1) [[ALLOCA]] to ptr
; CHECK-NEXT: [[V:%.*]] = call i8 @readonly_callee(ptr [[P]])
; CHECK-NEXT: ret i8 [[V]]
;
%alloca = alloca [32 x i8], addrspace(1)
call void @llvm.memcpy.p1.p0.i64(ptr addrspace(1) %alloca, ptr @g1, i64 16, i1 false)
%a1 = getelementptr inbounds [32 x i8], ptr addrspace(1) %alloca, i32 0, i32 16
call void @llvm.memcpy.p1.p1.i64(ptr addrspace(1) %a1, ptr addrspace(1) @g2, i64 16, i1 false)
%p = addrspacecast ptr addrspace(1) %alloca to ptr
%v = call i8 @readonly_callee(ptr %p)
ret i8 %v
}
declare void @llvm.memcpy.p1.p0.i64(ptr addrspace(1), ptr, i64, i1)
declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1)
declare void @llvm.memcpy.p0.p1.i64(ptr, ptr addrspace(1), i64, i1)
declare void @llvm.memcpy.p1.p1.i64(ptr addrspace(1), ptr addrspace(1), i64, i1)
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