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3626fc401a
When inserting UnregisterFn, if there is a musttail call, we must insert before the call so that we don't break the musttail call contract. Reviewed By: wenlei Differential Revision: https://reviews.llvm.org/D104807
32 lines
978 B
LLVM
32 lines
978 B
LLVM
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39439.
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; RUN: llc -mtriple i386-windows-gnu -exception-model sjlj -filetype asm -o - %s -verify-machineinstrs=0 | FileCheck %s
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declare void @_Z20function_that_throwsv()
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declare i32 @__gxx_personality_sj0(...)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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declare void @_callee();
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define void @_Z8functionv() personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*) {
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entry:
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invoke void @_Z20function_that_throwsv()
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to label %try.cont unwind label %lpad
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lpad:
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%0 = landingpad { i8*, i32 }
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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%2 = tail call i8* @__cxa_begin_catch(i8* %1)
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tail call void @__cxa_end_catch()
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br label %try.cont
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try.cont:
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musttail call void @_callee();
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ret void
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}
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; CHECK-LABEL: __Z8functionv:
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; CHECK: calll __Unwind_SjLj_Unregister
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; CHECK-NOT: {{.*}}:
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; CHECK: jmp __callee
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