| ; RUN: llc -aix-ssp-tb-bit -mtriple=powerpc64-ibm-aix-xcoff -O0 < %s | FileCheck %s |
| |
| ; CHECK-LABEL: f: |
| ; CHECK: __ssp_canary_word |
| ; CHECK: TB_SSP_CANARY |
| define i32 @f() #0 personality i8* bitcast (i32 (...)* @__xlcxx_personality_v1 to i8*) { |
| invoke i32 undef(i8* undef) |
| to label %invoke unwind label %lpad |
| |
| invoke: |
| %var = alloca i32, align 4 |
| store i32 0, i32* %var, align 4 |
| %gep = getelementptr inbounds i32, i32* %var, i32 1 |
| %ret = load i32, i32* %gep, align 4 |
| ret i32 %ret |
| lpad: |
| landingpad { i8*, i32 } |
| catch i8* null |
| unreachable |
| |
| } |
| |
| ; CHECK-LABEL: f2: |
| ; CHECK: __ssp_canary_word |
| ; Not emitting traceback bit when no unwinding needed. |
| ; CHECK-NOT: TB_SSP_CANARY |
| define i32 @f2() #0 { |
| %var = alloca i32, align 4 |
| store i32 0, i32* %var, align 4 |
| %gep = getelementptr inbounds i32, i32* %var, i32 1 |
| %ret = load i32, i32* %gep, align 4 |
| ret i32 %ret |
| } |
| |
| declare i32 @__xlcxx_personality_v1(...) |
| attributes #0 = { sspstrong } |
| |