forked from OSchip/llvm-project
62 lines
2.1 KiB
LLVM
62 lines
2.1 KiB
LLVM
; RUN: opt -basic-aa -memdep -mldst-motion -S < %s | FileCheck %s
|
|
; RUN: opt -aa-pipeline=basic-aa -passes='require<memdep>',mldst-motion \
|
|
; RUN: -S < %s | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
@r = common global i32 0, align 4
|
|
@s = common global i32 0, align 4
|
|
|
|
; CHECK-LABEL: define void @test1(
|
|
define void @test1(i1 %cmp, i32* noalias %p) {
|
|
entry:
|
|
br i1 %cmp, label %if.then, label %if.else
|
|
|
|
if.then: ; preds = %entry
|
|
call void @may_exit() nounwind
|
|
%arrayidx = getelementptr inbounds i32, i32* %p, i64 1
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
store i32 %0, i32* @r, align 4
|
|
br label %if.end
|
|
; CHECK: call void @may_exit()
|
|
; CHECK-NEXT: %[[gep:.*]] = getelementptr inbounds i32, i32* %p, i64 1
|
|
; CHECK-NEXT: %[[load:.*]] = load i32, i32* %[[gep]], align 4
|
|
; CHECK-NEXT: store i32 %[[load]], i32* @r, align 4
|
|
|
|
if.else: ; preds = %entry
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1
|
|
%1 = load i32, i32* %arrayidx1, align 4
|
|
store i32 %1, i32* @s, align 4
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.else, %if.then
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test2(
|
|
define void @test2(i1 %cmp, i32* noalias %p) {
|
|
entry:
|
|
br i1 %cmp, label %if.then, label %if.else
|
|
|
|
if.then: ; preds = %entry
|
|
%arrayidx = getelementptr inbounds i32, i32* %p, i64 1
|
|
store i32 1, i32* %arrayidx, align 4
|
|
call void @may_throw()
|
|
; CHECK: %[[gep:.*]] = getelementptr inbounds i32, i32* %p, i64 1
|
|
; CHECK-NEXT: store i32 1, i32* %[[gep]], align 4
|
|
; CHECK-NEXT: call void @may_throw()
|
|
br label %if.end
|
|
|
|
if.else: ; preds = %entry
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1
|
|
store i32 2, i32* %arrayidx1, align 4
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.else, %if.then
|
|
ret void
|
|
}
|
|
|
|
declare void @may_throw()
|
|
declare void @may_exit() nounwind
|