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