derek.holloway
7502bf64a4
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40 lines
831 B
LLVM
40 lines
831 B
LLVM
; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<simplify>' -polly-print-simplify -disable-output -aa-pipeline=basic-aa < %s | FileCheck %s -match-full-lines
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;
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; Remove a dead instruction
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; (an instruction whose result is not used anywhere)
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;
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; for (int j = 0; j < n; j += 1) {
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; double val = 21.0 + 21.0;
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; A[0] = 42.0;
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; }
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;
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define void @func(i32 %n, ptr noalias nonnull %A) {
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entry:
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br label %for
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for:
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%j = phi i32 [0, %entry], [%j.inc, %inc]
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%j.cmp = icmp slt i32 %j, %n
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br i1 %j.cmp, label %body, label %exit
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body:
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%val = fadd double 21.0, 21.0
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store double 42.0, ptr %A
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br label %inc
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inc:
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%j.inc = add nuw nsw i32 %j, 1
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br label %for
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exit:
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br label %return
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return:
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ret void
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}
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; CHECK: Statistics {
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; CHECK: Dead instructions removed: 1
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; CHECK: }
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