1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
; 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 ptr @__xlcxx_personality_v1 {
invoke i32 undef(ptr undef)
to label %invoke unwind label %lpad
invoke:
%var = alloca i32, align 4
store i32 0, ptr %var, align 4
%gep = getelementptr inbounds i32, ptr %var, i32 1
%ret = load i32, ptr %gep, align 4
ret i32 %ret
lpad:
landingpad { ptr, i32 }
catch ptr 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, ptr %var, align 4
%gep = getelementptr inbounds i32, ptr %var, i32 1
%ret = load i32, ptr %gep, align 4
ret i32 %ret
}
declare i32 @__xlcxx_personality_v1(...)
attributes #0 = { sspstrong }
|
