forked from OSchip/llvm-project
39 lines
1.5 KiB
LLVM
39 lines
1.5 KiB
LLVM
; RUN: opt < %s -loop-vectorize -S 2>&1 | FileCheck %s
|
|
; RUN: opt < %s -debugify -loop-vectorize -S | FileCheck %s -check-prefix DEBUGLOC
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
; This test makes sure we don't duplicate the loop vectorizer's metadata
|
|
; while marking them as already vectorized (by setting width = 1), even
|
|
; at lower optimization levels, where no extra cleanup is done
|
|
|
|
; DEBUGLOC-LABEL: define void @_Z3fooPf(
|
|
; Check that the phi to resume the scalar part of the loop
|
|
; has Debug Location.
|
|
define void @_Z3fooPf(float* %a) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
|
%arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
|
|
%p = load float, float* %arrayidx, align 4
|
|
%mul = fmul float %p, 2.000000e+00
|
|
store float %mul, float* %arrayidx, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%exitcond = icmp eq i64 %indvars.iv.next, 1024
|
|
br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0
|
|
|
|
; DEBUGLOC: scalar.ph:
|
|
; DEBUGLOC-NEXT: %bc.resume.val = phi {{.*}} !dbg ![[DbgLoc:[0-9]+]]
|
|
;
|
|
; DEBUGLOC: ![[DbgLoc]] = !DILocation(line: 2
|
|
|
|
for.end: ; preds = %for.body
|
|
ret void
|
|
}
|
|
|
|
!0 = !{!0, !1}
|
|
!1 = !{!"llvm.loop.vectorize.width", i32 4}
|
|
; CHECK-NOT: !{metadata !"llvm.loop.vectorize.width", i32 4}
|
|
; CHECK: !{!"llvm.loop.isvectorized", i32 1}
|