forked from OSchip/llvm-project
37 lines
1.3 KiB
LLVM
37 lines
1.3 KiB
LLVM
; PR30213. Check scev expand will generate correct code if the value
|
|
; in ValueOffsetPair is of pointer type.
|
|
; RUN: opt -mtriple=i386-apple-macosx10.12.0 < %s -loop-reduce -S | FileCheck %s
|
|
|
|
; CHECK: %ptr4.ptr1 = select i1 %cmp.i, i8* %ptr4, i8* %ptr1
|
|
; CHECK-NEXT: %scevgep = getelementptr i8, i8* %ptr4.ptr1, i32 1
|
|
; CHECK-NEXT: br label %while.cond.i
|
|
|
|
target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
|
|
target triple = "i386-apple-macosx10.12.0"
|
|
|
|
; Function Attrs: nounwind optsize ssp
|
|
define void @Foo() {
|
|
entry:
|
|
switch i2 undef, label %sw.epilog102 [
|
|
i2 -2, label %sw.bb28
|
|
]
|
|
|
|
sw.bb28: ; preds = %entry
|
|
%0 = load i8*, i8** undef, align 2
|
|
%ptr1 = getelementptr inbounds i8, i8* undef, i32 -1
|
|
%ptr4 = getelementptr inbounds i8, i8* %0, i32 -1
|
|
%cmp.i = icmp ult i8* undef, %0
|
|
%ptr4.ptr1 = select i1 %cmp.i, i8* %ptr4, i8* %ptr1
|
|
br label %while.cond.i
|
|
|
|
while.cond.i: ; preds = %while.cond.i, %sw.bb28
|
|
%currPtr.1.i = phi i8* [ %incdec.ptr.i, %while.cond.i ], [ %ptr4.ptr1, %sw.bb28 ]
|
|
%incdec.ptr.i = getelementptr inbounds i8, i8* %currPtr.1.i, i32 1
|
|
%1 = load i8, i8* %incdec.ptr.i, align 1
|
|
br label %while.cond.i
|
|
|
|
sw.epilog102: ; preds = %entry
|
|
unreachable
|
|
}
|
|
|