35 lines
736 B
LLVM
35 lines
736 B
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
|
|
|
|
declare void @readnone_but_may_throw() readnone
|
|
|
|
define void @f_0(i32* %ptr) {
|
|
; CHECK-LABEL: @f_0(
|
|
entry:
|
|
; CHECK: store i32 10, i32* %ptr
|
|
; CHECK-NEXT: call void @readnone_but_may_throw()
|
|
; CHECK-NEXT: store i32 20, i32* %ptr, align 4
|
|
; CHECK: ret void
|
|
|
|
store i32 10, i32* %ptr
|
|
call void @readnone_but_may_throw()
|
|
store i32 20, i32* %ptr
|
|
ret void
|
|
}
|
|
|
|
define void @f_1(i1 %cond, i32* %ptr) {
|
|
; CHECK-LABEL: @f_1(
|
|
; CHECK: store i32 10, i32* %ptr
|
|
; CHECK-NEXT: call void @readnone_but_may_throw()
|
|
|
|
store i32 10, i32* %ptr
|
|
call void @readnone_but_may_throw()
|
|
br i1 %cond, label %left, label %merge
|
|
|
|
left:
|
|
store i32 20, i32* %ptr
|
|
br label %merge
|
|
|
|
merge:
|
|
ret void
|
|
}
|