forked from OSchip/llvm-project
68 lines
2.2 KiB
LLVM
68 lines
2.2 KiB
LLVM
; RUN: opt %loadPolly -analyze -polly-scops < %s | FileCheck %s -check-prefix=SCOP
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; There is no FileCheck because we want to make sure that this doesn't crash.
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; RUN: opt %loadPolly -polly-codegen-ppcg -polly-acc-fail-on-verify-module-failure \
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; RUN: -disable-output < %s
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; REQUIRES: pollyacc
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; Due to the existence of the `fence` call, We can only detect the inner loop
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; and not the outer loop. PPCGCodeGeneration had not implemented this case.
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; The fix was to pull the implementation from `IslNodeBuilder.
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; Make sure that we only capture the inner loop
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; SCOP: Function: f
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; SCOP-NEXT: Region: %for2.body---%for2.body.fence
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; SCOP-NEXT: Max Loop Depth: 1
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target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @fn_to_fence(i32 *%val)
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; void f(int *arr, bool shouldcont) {
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; for(int i = 0; ; i++) {
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; for(int j = 0; j < 10; j++) {
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; arr[j] = i;
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; }
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; fence(arr);
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; if (!shouldcont) break;
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; }
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; }
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; Function Attrs: nounwind uwtable
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define void @f(i32 *%arr, i1 %shouldcont) #1 {
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entry:
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br label %for.init
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for.init: ; preds = %for.end, %entry.split
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%i = phi i32 [ %i.next, %for.end ], [ 0, %entry ]
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br label %for2.body
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for2.body: ; preds = %"65", %"64"
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%j = phi i32 [ %j.next, %for2.body ], [ 0, %for.init ]
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%j.sext = sext i32 %j to i64
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%arr.slot = getelementptr i32, i32* %arr, i64 %j.sext
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store i32 %i, i32* %arr.slot, align 4
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%exitcond = icmp eq i32 %j, 10
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%j.next = add i32 %j, 1
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br i1 %exitcond, label %for2.body.fence, label %for2.body
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for2.body.fence: ; preds = %"65"
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call void @fn_to_fence(i32* %arr) #2
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br i1 %shouldcont, label %for.end, label %exit
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for.end: ; preds = %"69"
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%i.next = add i32 %i, 1
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br label %for.init
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exit: ; preds = %"69"
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ret void
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}
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attributes #0 = { argmemonly nounwind }
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attributes #1 = { nounwind uwtable }
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attributes #2 = { nounwind }
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