| 12345678910111213141516171819202122232425262728293031323334 |
- ; This test verifies that the loop vectorizer will NOT produce a tail
- ; loop with Optimize for size attibute.
- ; REQUIRES: asserts
- ; RUN: opt < %s -loop-vectorize -Os -debug -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
- ;CHECK-NOT: <2 x i8>
- ;CHECK-NOT: <4 x i8>
- ;CHECK: Aborting. A tail loop is required in Os.
- target datalayout = "E-m:e-p:32:32-i64:32-f64:32:64-a:0:32-n32-S128"
- @tab = common global [32 x i8] zeroinitializer, align 1
- ; Function Attrs: nounwind optsize
- define i32 @foo() #0 {
- entry:
- br label %for.body
- for.body: ; preds = %for.body, %entry
- %i.08 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
- %arrayidx = getelementptr inbounds [32 x i8], [32 x i8]* @tab, i32 0, i32 %i.08
- %0 = load i8, i8* %arrayidx, align 1
- %cmp1 = icmp eq i8 %0, 0
- %. = select i1 %cmp1, i8 2, i8 1
- store i8 %., i8* %arrayidx, align 1
- %inc = add nsw i32 %i.08, 1
- %exitcond = icmp eq i32 %i.08, 202
- br i1 %exitcond, label %for.end, label %for.body
- for.end: ; preds = %for.body
- ret i32 0
- }
- 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" }
|
