forked from OSchip/llvm-project
42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -O0
|
|
|
|
; When WZR wasn't marked as reserved, this function tried to allocate
|
|
; it at O0 and then generated an internal fault (mostly incidentally)
|
|
; when it discovered that it was already in use for a multiplication.
|
|
|
|
; I'm not really convinced this is a good test since it could easily
|
|
; stop testing what it does now with no-one any the wiser. However, I
|
|
; can't think of a better way to force the allocator to use WZR
|
|
; specifically.
|
|
|
|
define void @test() nounwind {
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body, %entry
|
|
br i1 undef, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
br label %for.cond6
|
|
|
|
for.cond6: ; preds = %for.body9, %for.end
|
|
br i1 undef, label %for.body9, label %while.cond30
|
|
|
|
for.body9: ; preds = %for.cond6
|
|
store i16 0, i16* undef, align 2
|
|
%0 = load i32* undef, align 4
|
|
%1 = load i32* undef, align 4
|
|
%mul15 = mul i32 %0, %1
|
|
%add16 = add i32 %mul15, 32768
|
|
%div = udiv i32 %add16, 65535
|
|
%add17 = add i32 %div, 1
|
|
store i32 %add17, i32* undef, align 4
|
|
br label %for.cond6
|
|
|
|
while.cond30: ; preds = %for.cond6
|
|
ret void
|
|
}
|