forked from OSchip/llvm-project
98 lines
3.6 KiB
LLVM
98 lines
3.6 KiB
LLVM
; RUN: opt %loadPolly -analyze -polly-ast -polly-process-unprofitable -polly-allow-nonaffine < %s | FileCheck %s
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;
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; @test1
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; Make sure we generate the correct aliasing check for a fixed-size memset operation.
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; CHECK: if (1 && (&MemRef_0[15] <= &MemRef_1[0] || &MemRef_1[32] <= &MemRef_0[14]))
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;
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; @test2
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; Make sure we generate the correct aliasing check for a variable-size memset operation.
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; CHECK: if (1 && (&MemRef_0[15] <= &MemRef_1[0] || &MemRef_1[n] <= &MemRef_0[14]))
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;
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; @test3
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; We can't do anything interesting with a non-affine memset; just make sure it doesn't crash.
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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%struct.info = type { i32, %struct.ctr*, i32, %struct.ord*, %struct.ctr*, i32, i8*, i32, i32, double }
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%struct.ctr = type { i32, i8, i8, i32 }
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%struct.ord = type { i32, i8 }
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; Function Attrs: argmemonly nounwind
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #0
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define void @test1(%struct.info** %ppIdxInfo) {
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entry:
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%0 = load %struct.info*, %struct.info** %ppIdxInfo, align 8
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br label %if.end125
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if.end125: ; preds = %entry
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%1 = load %struct.ctr*, %struct.ctr** undef, align 8
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br label %for.end143
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for.end143: ; preds = %if.end125
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%2 = bitcast %struct.ctr* %1 to i8*
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tail call void @llvm.memset.p0i8.i64(i8* %2, i8 0, i64 32, i32 4, i1 false)
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%needToFreeIdxStr = getelementptr inbounds %struct.info, %struct.info* %0, i64 0, i32 7
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%3 = load i32, i32* %needToFreeIdxStr, align 8
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br i1 false, label %if.end149, label %if.then148
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if.then148: ; preds = %for.end143
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br label %if.end149
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if.end149: ; preds = %if.then148, %for.end143
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ret void
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}
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define void @test2(%struct.info** %ppIdxInfo, i64 %n) {
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entry:
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%0 = load %struct.info*, %struct.info** %ppIdxInfo, align 8
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br label %if.end125
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if.end125: ; preds = %entry
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%1 = load %struct.ctr*, %struct.ctr** undef, align 8
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br label %for.end143
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for.end143: ; preds = %if.end125
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%2 = bitcast %struct.ctr* %1 to i8*
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tail call void @llvm.memset.p0i8.i64(i8* %2, i8 0, i64 %n, i32 4, i1 false)
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%needToFreeIdxStr = getelementptr inbounds %struct.info, %struct.info* %0, i64 0, i32 7
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%3 = load i32, i32* %needToFreeIdxStr, align 8
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br i1 false, label %if.end149, label %if.then148
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if.then148: ; preds = %for.end143
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br label %if.end149
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if.end149: ; preds = %if.then148, %for.end143
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ret void
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}
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define i32 @test3(i32* %x, i32 %n) {
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entry:
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br label %entry.split
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entry.split: ; preds = %entry
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%conv = sext i32 %n to i64
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%cmp8 = icmp sgt i32 %n, 0
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br i1 %cmp8, label %for.body.lr.ph, label %for.cond.cleanup
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for.body.lr.ph: ; preds = %entry.split
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%0 = bitcast i32* %x to i8*
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br label %for.body
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for.cond.cleanup: ; preds = %for.body, %entry.split
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ret i32 0
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for.body: ; preds = %for.body, %for.body.lr.ph
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%i.09 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
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%mul = mul nsw i64 %i.09, %i.09
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tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 %mul, i32 4, i1 false)
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%add = add nuw nsw i64 %i.09, 1000
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%arrayidx = getelementptr inbounds i32, i32* %x, i64 %add
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store i32 5, i32* %arrayidx, align 4
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%inc = add nuw nsw i64 %i.09, 1
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%exitcond = icmp eq i64 %inc, %conv
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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attributes #0 = { argmemonly nounwind }
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