forked from OSchip/llvm-project
56 lines
1.9 KiB
LLVM
56 lines
1.9 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze \
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; RUN: -polly-invariant-load-hoisting=true < %s | FileCheck %s
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;
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; void f(unsigned *restrict I, unsigned *restrict A, unsigned N, unsigned M) {
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; for (unsigned i = 0; i < N; i++) {
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; unsigned char V = *I;
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; if (V < M)
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; A[i]++;
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; }
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; }
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;
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; FIXME: The truncated value should be a paramter.
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; CHECK: Assumed Context:
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; CHECK-NEXT: [N, tmp, M] -> { : }
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; CHECK-NEXT: Invalid Context:
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; CHECK-NEXT: [N, tmp, M] -> { : N < 0 or (N > 0 and tmp >= 128) or (N > 0 and tmp < 0) or (N > 0 and M < 0) }
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;
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; CHECK: Domain :=
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; CHECK-NEXT: [N, tmp, M] -> { Stmt_if_then[i0] : tmp >= 0 and M > tmp and 0 <= i0 < N };
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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* noalias %I, i32* noalias %A, i32 %N, i32 %M) {
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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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%lftr.wideiv = trunc i64 %indvars.iv to i32
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%exitcond = icmp ne i32 %lftr.wideiv, %N
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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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%conv1 = and i32 %tmp, 255
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%cmp2 = icmp ult i32 %conv1, %M
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br i1 %cmp2, label %if.then, label %if.end
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if.then: ; preds = %for.body
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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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%inc = add i32 %tmp1, 1
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store i32 %inc, i32* %arrayidx, 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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br label %for.inc
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for.inc: ; preds = %if.end
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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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