mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-05-13 17:38:39 +00:00
a7d9a6ee63
This fixes a miscompilation in FreeBSD's regex library. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180121 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.0 KiB
LLVM
37 lines
1.0 KiB
LLVM
; RUN: opt -S -loop-vectorize -dce -instcombine -force-vector-width=2 -force-vector-unroll=2 < %s | FileCheck %s
|
|
|
|
;PR 15830.
|
|
|
|
;CHECK: foo
|
|
; When scalarizing stores we need to preserve the original order.
|
|
; Make sure that we are extracting in the correct order (0101, and not 0011).
|
|
;CHECK: extractelement <2 x i64> {{.*}}, i32 0
|
|
;CHECK: extractelement <2 x i64> {{.*}}, i32 1
|
|
;CHECK: extractelement <2 x i64> {{.*}}, i32 0
|
|
;CHECK: extractelement <2 x i64> {{.*}}, i32 1
|
|
;CHECK: store
|
|
;CHECK: store
|
|
;CHECK: store
|
|
;CHECK: store
|
|
;CHECK: ret
|
|
|
|
define i32 @foo(i32* nocapture %A) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
|
%0 = shl nsw i64 %indvars.iv, 2
|
|
%arrayidx = getelementptr inbounds i32* %A, i64 %0
|
|
store i32 4, i32* %arrayidx, align 4
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp eq i32 %lftr.wideiv, 10000
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end:
|
|
ret i32 undef
|
|
}
|
|
|
|
|