xref: /llvm-project/llvm/test/CodeGen/ARM/crash-O0.ll (revision bed1c7f061aa12417aa081e334afdba45767b938) 
1; RUN: llc < %s -O0 -relocation-model=pic -frame-pointer=all -no-integrated-as
2target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:64-n32"
3target triple = "armv6-apple-darwin10"
4
5%struct0 = type { i32, i32 }
6
7; This function would crash RegAllocFast because it tried to spill %CPSR.
8define arm_apcscc void @clobber_cc() nounwind noinline ssp {
9entry:
10  %asmtmp = call %struct0 asm sideeffect "...", "=&r,=&r,r,Ir,r,~{cc},~{memory}"(ptr undef, i32 undef, i32 1) nounwind ; <%0> [#uses=0]
11  unreachable
12}
13
14@.str523 = private constant [256 x i8] c"<Unknown>\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00", align 4 ; <ptr> [#uses=1]
15declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture, i32, i1) nounwind
16
17; This function uses the scavenger for an ADDri instruction.
18; ARMBaseRegisterInfo::estimateRSStackSizeLimit must return a 255 limit.
19define arm_apcscc void @scavence_ADDri() nounwind {
20entry:
21  %letter = alloca i8                             ; <ptr> [#uses=0]
22  %prodvers = alloca [256 x i8]                   ; <ptr> [#uses=1]
23  %buildver = alloca [256 x i8]                   ; <ptr> [#uses=0]
24  call void @llvm.memcpy.p0.p0.i32(ptr align 1 undef, ptr align 1 @.str523, i32 256, i1 false)
25  call void @llvm.memcpy.p0.p0.i32(ptr align 1 %prodvers, ptr align 1 @.str523, i32 256, i1 false)
26  unreachable
27}
28