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| ; RUN: opt %loadPolly -analyze -polly-ast -polly-process-unprofitable -polly-allow-nonaffine < %s | FileCheck %s
;
; @test1
; Make sure we generate the correct aliasing check for a fixed-size memset operation.
; CHECK: if (1 && (&MemRef_tmp0[15] <= &MemRef_tmp1[0] || &MemRef_tmp1[32] <= &MemRef_tmp0[14]))
;
; @test2
; Make sure we generate the correct aliasing check for a variable-size memset operation.
; CHECK: if (1 && (&MemRef_tmp0[15] <= &MemRef_tmp1[0] || &MemRef_tmp1[n] <= &MemRef_tmp0[14]))
;
; @test3
; We can't do anything interesting with a non-affine memset; just make sure it doesn't crash.
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
%struct.info = type { i32, %struct.ctr*, i32, %struct.ord*, %struct.ctr*, i32, i8*, i32, i32, double }
%struct.ctr = type { i32, i8, i8, i32 }
%struct.ord = type { i32, i8 }
; Function Attrs: argmemonly nounwind
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #0
define void @test1(%struct.info** %ppIdxInfo) {
entry:
%tmp0 = load %struct.info*, %struct.info** %ppIdxInfo, align 8
br label %if.end125
if.end125: ; preds = %entry
%tmp1 = load %struct.ctr*, %struct.ctr** undef, align 8
br label %for.end143
for.end143: ; preds = %if.end125
%tmp2 = bitcast %struct.ctr* %tmp1 to i8*
tail call void @llvm.memset.p0i8.i64(i8* %tmp2, i8 0, i64 32, i32 4, i1 false)
%needToFreeIdxStr = getelementptr inbounds %struct.info, %struct.info* %tmp0, i64 0, i32 7
%tmp3 = load i32, i32* %needToFreeIdxStr, align 8
br i1 false, label %if.end149, label %if.then148
if.then148: ; preds = %for.end143
br label %if.end149
if.end149: ; preds = %if.then148, %for.end143
ret void
}
define void @test2(%struct.info** %ppIdxInfo, i64 %n) {
entry:
%tmp0 = load %struct.info*, %struct.info** %ppIdxInfo, align 8
br label %if.end125
if.end125: ; preds = %entry
%tmp1 = load %struct.ctr*, %struct.ctr** undef, align 8
br label %for.end143
for.end143: ; preds = %if.end125
%tmp2 = bitcast %struct.ctr* %tmp1 to i8*
tail call void @llvm.memset.p0i8.i64(i8* %tmp2, i8 0, i64 %n, i32 4, i1 false)
%needToFreeIdxStr = getelementptr inbounds %struct.info, %struct.info* %tmp0, i64 0, i32 7
%tmp3 = load i32, i32* %needToFreeIdxStr, align 8
br i1 false, label %if.end149, label %if.then148
if.then148: ; preds = %for.end143
br label %if.end149
if.end149: ; preds = %if.then148, %for.end143
ret void
}
define i32 @test3(i32* %x, i32 %n) {
entry:
br label %entry.split
entry.split: ; preds = %entry
%conv = sext i32 %n to i64
%cmp8 = icmp sgt i32 %n, 0
br i1 %cmp8, label %for.body.lr.ph, label %for.cond.cleanup
for.body.lr.ph: ; preds = %entry.split
%tmp0 = bitcast i32* %x to i8*
br label %for.body
for.cond.cleanup: ; preds = %for.body, %entry.split
ret i32 0
for.body: ; preds = %for.body, %for.body.lr.ph
%i.09 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
%mul = mul nsw i64 %i.09, %i.09
tail call void @llvm.memset.p0i8.i64(i8* %tmp0, i8 0, i64 %mul, i32 4, i1 false)
%add = add nuw nsw i64 %i.09, 1000
%arrayidx = getelementptr inbounds i32, i32* %x, i64 %add
store i32 5, i32* %arrayidx, align 4
%inc = add nuw nsw i64 %i.09, 1
%exitcond = icmp eq i64 %inc, %conv
br i1 %exitcond, label %for.cond.cleanup, label %for.body
}
attributes #0 = { argmemonly nounwind }
|