forked from OSchip/llvm-project
72 lines
2.6 KiB
LLVM
72 lines
2.6 KiB
LLVM
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; RUN: opt %loadPolly -analyze -polly-scops \
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; RUN: -polly-invariant-load-hoisting < %s| FileCheck %s -check-prefix=SCOP
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; RUN: opt %loadPolly -S -polly-codegen-ppcg \
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; RUN: -polly-invariant-load-hoisting < %s | FileCheck %s -check-prefix=HOST-IR
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; REQUIRES: pollyacc
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; Check that we detect a scop.
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; SCOP: Function: f
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; SCOP-NEXT: Region: %for.body---%for.end
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; SCOP-NEXT: Max Loop Depth: 1
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; SCOP-NEXT: Invariant Accesses: {
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; SCOP-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; SCOP-NEXT: [tmp] -> { Stmt_for_body[i0] -> MemRef_control[0] };
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; SCOP-NEXT: Execution Context: [tmp] -> { : }
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; SCOP-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; SCOP-NEXT: [tmp] -> { Stmt_if_then[i0] -> MemRef_readarr[0] };
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; SCOP-NEXT: Execution Context: [tmp] -> { : tmp >= 4 }
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; SCOP-NEXT: }
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; Check that kernel launch is generated in host IR.
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; the declare would not be generated unless a call to a kernel exists.
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; HOST-IR: declare void @polly_launchKernel(i8*, i32, i32, i32, i32, i32, i8*)
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; This test makes sure that such an access pattern is handled correctly
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; by PPCGCodeGeneration. It appears that not calling `preloadInvariantLoads`
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; was the main reason that caused this test case to crash.
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;
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; void f(int *arr, const int *control, const int *readarr) {
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; for(int i = 0; i < 1000; i++) {
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; int t = 0;
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; if (*control > 3) {
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; t += *readarr;
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; }
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; arr[i] = t;
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; }
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; }
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target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
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target triple = "i386-apple-macosx10.12.0"
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define void @f(i32* %arr, i32* %control, i32* %readarr) {
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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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br label %for.body
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for.body: ; preds = %entry.split, %if.end
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%i.01 = phi i32 [ 0, %entry.split ], [ %inc, %if.end ]
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%tmp = load i32, i32* %control, align 4
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%cmp1 = icmp sgt i32 %tmp, 3
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br i1 %cmp1, label %if.then, label %if.end
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if.then: ; preds = %for.body
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%tmp1 = load i32, i32* %readarr, align 4
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br label %if.end
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if.end: ; preds = %if.then, %for.body
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%t.0 = phi i32 [ %tmp1, %if.then ], [ 0, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %arr, i32 %i.01
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store i32 %t.0, i32* %arrayidx, align 4
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%inc = add nuw nsw i32 %i.01, 1
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%exitcond = icmp eq i32 %inc, 1000
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %if.end
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ret void
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}
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