mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 03:53:04 +02:00
ebdba4dd3c
isInductionPHI wants to calculate the stride based on the pointee size. However, this is not possible when the pointee is zero sized. This fixes PR23763. llvm-svn: 239143
28 lines
836 B
LLVM
28 lines
836 B
LLVM
; RUN: opt -S -loop-vectorize < %s | FileCheck %s
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; CHECK-LABEL: @fn1
|
|
define void @fn1() {
|
|
entry-block:
|
|
br label %middle
|
|
|
|
middle:
|
|
%0 = phi {}* [ %3, %middle ], [ inttoptr (i64 0 to {}*), %entry-block ]
|
|
%1 = bitcast {}* %0 to i8*
|
|
%2 = getelementptr i8, i8* %1, i64 1
|
|
%3 = bitcast i8* %2 to {}*
|
|
%4 = icmp eq i8* %2, undef
|
|
br i1 %4, label %exit, label %middle
|
|
|
|
; CHECK: %[[phi:.*]] = phi {}* [ %3, %middle ], [ null, %entry-block ]
|
|
; CHECK-NEXT: %[[bc1:.*]] = bitcast {}* %[[phi]] to i8*
|
|
; CHECK-NEXT: %[[gep:.*]] = getelementptr i8, i8* %[[bc1]], i64 1
|
|
; CHECK-NEXT: %[[bc2:.*]] = bitcast i8* %[[gep]] to {}*
|
|
; CHECK-NEXT: %[[cmp:.*]] = icmp eq i8* %[[gep]], undef
|
|
; CHECK-NEXT: br i1 %[[cmp]],
|
|
|
|
exit:
|
|
ret void
|
|
}
|