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https://github.com/c64scene-ar/llvm-6502.git
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35 lines
1.3 KiB
LLVM
35 lines
1.3 KiB
LLVM
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; This test verifies that the loop vectorizer will NOT produce a tail
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; loop with Optimize for size attibute.
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; REQUIRES: asserts
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; RUN: opt < %s -loop-vectorize -Os -debug -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
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;CHECK-NOT: <2 x i8>
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;CHECK-NOT: <4 x i8>
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;CHECK: Aborting. A tail loop is required in Os.
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target datalayout = "E-m:e-p:32:32-i64:32-f64:32:64-a:0:32-n32-S128"
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@tab = common global [32 x i8] zeroinitializer, align 1
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; Function Attrs: nounwind optsize
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define i32 @foo() #0 {
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entry:
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%i.08 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds [32 x i8], [32 x i8]* @tab, i32 0, i32 %i.08
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%0 = load i8, i8* %arrayidx, align 1
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%cmp1 = icmp eq i8 %0, 0
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%. = select i1 %cmp1, i8 2, i8 1
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store i8 %., i8* %arrayidx, align 1
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%inc = add nsw i32 %i.08, 1
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%exitcond = icmp eq i32 %i.08, 202
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret i32 0
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}
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attributes #0 = { nounwind optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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