forked from OSchip/llvm-project
42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
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;
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; Check that we model the execution context correctly.
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;
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; void f(unsigned *I, unsigned *A, int c) {
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; for (unsigned i = c; i < 10; i++)
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; A[i] += *I;
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; }
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;
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; CHECK: Invariant Accesses: {
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [c] -> { Stmt_for_body[i0] -> MemRef_I[0] };
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; CHECK-NEXT: Execution Context: [c] -> { : 0 <= c <= 9 }
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; CHECK-NEXT: }
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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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define void @f(i32* %I, i32* %A, i64 %c) {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc, %entry
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ %c, %entry ]
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%exitcond = icmp ult i64 %indvars.iv, 10
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br i1 %exitcond, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%tmp = load i32, i32* %I, align 4
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%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp1 = load i32, i32* %arrayidx, align 4
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%add = add i32 %tmp1, %tmp
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store i32 %add, i32* %arrayidx, align 4
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br label %for.inc
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for.inc: ; preds = %for.body
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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}
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