forked from OSchip/llvm-project
37 lines
983 B
LLVM
37 lines
983 B
LLVM
; RUN: opt < %s -S -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 | FileCheck %s
|
|
|
|
; Check that we can vectorize this loop without crashing.
|
|
|
|
; CHECK-LABEL: define {{.*}} @widget(
|
|
; CHECK: [[vecInd:%.*]] = phi <4 x i8> [ <i8 0, i8 1, i8 2, i8 3>
|
|
; CHECK-NEXT: add <4 x i8> [[vecInd]], <i8 1, i8 1, i8 1, i8 1>
|
|
|
|
define i8 @widget(i8* %arr, i8 %t9) {
|
|
bb:
|
|
br label %bb6
|
|
|
|
bb6:
|
|
%t1.0 = phi i8* [ %arr, %bb ], [ null, %bb6 ]
|
|
%c = call i1 @cond()
|
|
br i1 %c, label %for.preheader, label %bb6
|
|
|
|
for.preheader:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%iv = phi i8 [ %iv.next, %for.body ], [ 0, %for.preheader ]
|
|
%iv.next = add i8 %iv, 1
|
|
%ptr = getelementptr inbounds i8, i8* %arr, i8 %iv.next
|
|
%t3.i = icmp slt i8 %iv.next, %t9
|
|
%t3.i8 = zext i1 %t3.i to i8
|
|
store i8 %t3.i8, i8* %ptr
|
|
%ec = icmp eq i8* %t1.0, %ptr
|
|
br i1 %ec, label %for.exit, label %for.body
|
|
|
|
for.exit:
|
|
%iv.next.lcssa = phi i8 [ %iv.next, %for.body ]
|
|
ret i8 %iv.next.lcssa
|
|
}
|
|
|
|
declare i1 @cond()
|