forked from OSchip/llvm-project
50 lines
1.7 KiB
LLVM
50 lines
1.7 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
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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[-1 + c] };
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; CHECK-NEXT: Execution Context: [c] -> { : c > 0 }
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; CHECK-NEXT: }
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; CHECK-NEXT: Context:
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; CHECK-NEXT: [c] -> { : -128 <= c <= 127 }
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; CHECK-NEXT: Assumed Context:
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; CHECK-NEXT: [c] -> { : }
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; CHECK-NEXT: Invalid Context:
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; CHECK-NEXT: [c] -> { : c <= 0 }
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;
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; void f(int *A, int *I, unsigned char c) {
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; for (int i = 0; i < 10; i++)
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; A[i] += I[c - (char)1];
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; }
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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* %A, i32* %I, i8 zeroext %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 ], [ 0, %entry ]
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%exitcond = icmp ne 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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%sub = add i8 %c, -1
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%conv = zext i8 %sub to i64
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%arrayidx = getelementptr inbounds i32, i32* %I, i64 %conv
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%tmp = load i32, i32* %arrayidx, align 4
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%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
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%tmp1 = load i32, i32* %arrayidx2, align 4
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%add = add nsw i32 %tmp1, %tmp
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store i32 %add, i32* %arrayidx2, 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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