forked from OSchip/llvm-project
60 lines
2.3 KiB
LLVM
60 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -basic-aa -licm -S | FileCheck %s
|
|
; RUN: opt -aa-pipeline=tbaa,basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,require<opt-remark-emit>,loop-mssa(licm)' -S %s | FileCheck %s
|
|
|
|
; Make sure we don't hoist a conditionally-executed store out of the loop;
|
|
; it would violate the concurrency memory model
|
|
|
|
@g = common global i32 0, align 4
|
|
|
|
define void @bar(i32 %n, i32 %b) nounwind uwtable ssp {
|
|
; CHECK-LABEL: @bar(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[B:%.*]], 0
|
|
; CHECK-NEXT: [[G_PROMOTED:%.*]] = load i32, i32* @g, align 4
|
|
; CHECK-NEXT: br label [[FOR_COND:%.*]]
|
|
; CHECK: for.cond:
|
|
; CHECK-NEXT: [[INC2:%.*]] = phi i32 [ [[G_PROMOTED]], [[ENTRY:%.*]] ], [ [[INC1:%.*]], [[FOR_INC:%.*]] ]
|
|
; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC5:%.*]], [[FOR_INC]] ]
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[I_0]], [[N:%.*]]
|
|
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: br i1 [[TOBOOL]], label [[FOR_INC]], label [[IF_THEN:%.*]]
|
|
; CHECK: if.then:
|
|
; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[INC2]], 1
|
|
; CHECK-NEXT: store i32 [[INC]], i32* @g, align 4
|
|
; CHECK-NEXT: br label [[FOR_INC]]
|
|
; CHECK: for.inc:
|
|
; CHECK-NEXT: [[INC1]] = phi i32 [ [[INC]], [[IF_THEN]] ], [ [[INC2]], [[FOR_BODY]] ]
|
|
; CHECK-NEXT: [[INC5]] = add nsw i32 [[I_0]], 1
|
|
; CHECK-NEXT: br label [[FOR_COND]]
|
|
; CHECK: for.end:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc5, %for.inc ]
|
|
%cmp = icmp slt i32 %i.0, %n
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%tobool = icmp eq i32 %b, 0
|
|
br i1 %tobool, label %for.inc, label %if.then
|
|
|
|
if.then: ; preds = %for.body
|
|
%tmp3 = load i32, i32* @g, align 4
|
|
%inc = add nsw i32 %tmp3, 1
|
|
store i32 %inc, i32* @g, align 4
|
|
br label %for.inc
|
|
|
|
|
|
for.inc: ; preds = %for.body, %if.then
|
|
%inc5 = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|