d8075e8781
This is relanding commit da1d1a0869 .
This patch additionally addresses failures found in buildbots & post review comments.
ARM EHABI[1] specifies the __cxa_end_cleanup to be called after cleanup.
It will call the UnwindResume.
__cxa_begin_cleanup will be called from libcxxabi while __cxa_end_cleanup is never called.
This will trigger a termination when a foreign exception is processed while UnwindResume is called
because the global state will be wrong due to the missing __cxa_end_cleanup call.
Additional test here: D109856
[1] https://github.com/ARM-software/abi-aa/blob/main/ehabi32/ehabi32.rst#941compiler-helper-functions
Reviewed By: logan
Differential Revision: https://reviews.llvm.org/D111703
30 lines
1.0 KiB
LLVM
30 lines
1.0 KiB
LLVM
; RUN: llc < %s -mtriple=armv7-apple-ios -arm-atomic-cfg-tidy=0 | FileCheck %s -check-prefix=IOS
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; RUN: llc < %s -mtriple=armv7-apple-watchos -arm-atomic-cfg-tidy=0 | FileCheck %s -check-prefix=IOS
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; RUN: llc < %s -mtriple=armv7k-apple-ios -arm-atomic-cfg-tidy=0 | FileCheck %s -check-prefix=WATCHABI
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; RUN: llc < %s -mtriple=armv7k-apple-watchos -arm-atomic-cfg-tidy=0 | FileCheck %s -check-prefix=WATCHABI
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; RUN: llc < %s -mtriple=armv7-none-gnueabihf -arm-atomic-cfg-tidy=0 | FileCheck %s -check-prefix=EABI
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; RUN: llc < %s -mtriple=armv7-none-none -arm-atomic-cfg-tidy=0 | FileCheck %s -check-prefix=ABI
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declare void @func()
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declare i32 @__gxx_personality_sj0(...)
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define void @test0() personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*) {
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entry:
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invoke void @func()
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to label %cont unwind label %lpad
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cont:
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ret void
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lpad:
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%exn = landingpad { i8*, i32 }
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cleanup
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resume { i8*, i32 } %exn
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}
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; IOS: __Unwind_SjLj_Resume
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; WATCHABI: __Unwind_Resume
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; EABI: __cxa_end_cleanup
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; ABI: _Unwind_Resume
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