forked from OSchip/llvm-project
136 lines
4.4 KiB
LLVM
136 lines
4.4 KiB
LLVM
; RUN: llc -mtriple i386-windows-gnu -exception-model sjlj -filetype asm -o - %s | FileCheck %s
|
|
; RUN: llc -mtriple x86_64-windows-gnu -exception-model sjlj -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-X64
|
|
; RUN: llc -mtriple x86_64-linux -exception-model sjlj -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-X64-LINUX
|
|
|
|
declare void @_Z20function_that_throwsv()
|
|
declare i32 @__gxx_personality_sj0(...)
|
|
declare i8* @__cxa_begin_catch(i8*)
|
|
declare void @__cxa_end_catch()
|
|
|
|
define void @_Z8functionv() personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*) {
|
|
entry:
|
|
invoke void @_Z20function_that_throwsv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
lpad:
|
|
%0 = landingpad { i8*, i32 }
|
|
catch i8* null
|
|
%1 = extractvalue { i8*, i32 } %0, 0
|
|
%2 = tail call i8* @__cxa_begin_catch(i8* %1)
|
|
tail call void @__cxa_end_catch()
|
|
br label %try.cont
|
|
|
|
try.cont:
|
|
ret void
|
|
}
|
|
|
|
; struct _Unwind_FunctionContext {
|
|
; +00 struct _Unwind_FunctionContext *prev; -64(%ebp)
|
|
; +04 uint32_t __callsite; -60(%ebp)
|
|
; +08 uint32_t __buffer[4]; -56(%ebp)
|
|
; +24 __personality_routine __personality; -40(%ebp)
|
|
; +28 uintptr_t __lsda; -36(%ebp)
|
|
; +32 void *__jbuf[]; -32(%ebp)
|
|
; };
|
|
|
|
|
|
; CHECK-LABEL: __Z8functionv:
|
|
; struct _Unwind_FunctionContext UFC;
|
|
;
|
|
; UFC.__personality = __gxx_personality_sj0
|
|
; CHECK: movl $___gxx_personality_sj0, -40(%ebp)
|
|
; UFC.__lsda = $LSDA
|
|
; CHECK: movl $[[LSDA:GCC_except_table[0-9]+]], -36(%ebp)
|
|
; UFC.__jbuf[0] = $EBP
|
|
; CHECK: movl %ebp, -32(%ebp)
|
|
; UFC.__jbuf[2] = $ESP
|
|
; CHECK: movl %esp, -24(%ebp)
|
|
; UFC.__jbuf[1] = $EIP
|
|
; CHECK: movl $[[RESUME:LBB[0-9]+_[0-9]+]], -28(%ebp)
|
|
; UFC.__callsite = 1
|
|
; CHECK: movl $1, -60(%ebp)
|
|
; _Unwind_SjLj_Register(&UFC);
|
|
; CHECK: leal -64(%ebp), %eax
|
|
; CHECK: pushl %eax
|
|
; CHECK: calll __Unwind_SjLj_Register
|
|
; CHECK: addl $4, %esp
|
|
; function_that_throws();
|
|
; CHECK: calll __Z20function_that_throwsv
|
|
; _Unwind_SjLj_Unregister(&UFC);
|
|
; CHECK: leal -64(%ebp), %eax
|
|
; CHECK: calll __Unwind_SjLj_Unregister
|
|
;
|
|
; CHECK: [[RESUME]]:
|
|
; CHECK: leal -64(%ebp), %esi
|
|
; assert(UFC.__callsite < 1);
|
|
; CHECK: movl -60(%ebp), %eax
|
|
; CHECK: cmpl $1, %eax
|
|
; CHECK: jb [[CONT:LBB[0-9]+_[0-9]+]]
|
|
; CHECK: ud2
|
|
; CHECK: [[CONT]]:
|
|
; *Handlers[UFC.__callsite]
|
|
; CHECK: jmpl *LJTI
|
|
|
|
|
|
; struct _Unwind_FunctionContext {
|
|
; +00 struct _Unwind_FunctionContext *prev; -312(%rbp)
|
|
; +08 uint32_t __callsite; -304(%rbp)
|
|
; +12 uint32_t __buffer[4]; -300(%rbp)
|
|
; +32 __personality_routine __personality; -280(%rbp)
|
|
; +40 uintptr_t __lsda; -272(%rbp)
|
|
; +48 void *__jbuf[]; -264(%rbp)
|
|
; };
|
|
|
|
|
|
; CHECK-X64-LABEL: _Z8functionv:
|
|
; struct _Unwind_FunctionContext UFC;
|
|
;
|
|
; UFC.__personality = __gxx_personality_sj0
|
|
; CHECK-X64: leaq __gxx_personality_sj0(%rip), %rax
|
|
; CHECK-X64: movq %rax, -280(%rbp)
|
|
; UFC.__lsda = $LSDA
|
|
; CHECK-X64: leaq [[LSDA:GCC_except_table[0-9]+]](%rip), %rax
|
|
; CHECK-X64: movq %rax, -272(%rbp)
|
|
; UFC.__jbuf[0] = $RBP
|
|
; CHECK-X64: movq %rbp, -264(%rbp)
|
|
; UFC.__jbuf[2] = $RSP
|
|
; CHECK-X64: movq %rsp, -248(%rbp)
|
|
; UFC.__jbuf[1] = $RIP
|
|
; CHECK-X64: leaq .[[RESUME:LBB[0-9]+_[0-9]+]](%rip), %rax
|
|
; CHECK-X64: movq %rax, -256(%rbp)
|
|
; UFC.__callsite = 1
|
|
; CHECK-X64: movl $1, -304(%rbp)
|
|
; _Unwind_SjLj_Register(&UFC);
|
|
; CHECK-X64: leaq -312(%rbp), %rcx
|
|
; CHECK-X64: callq _Unwind_SjLj_Register
|
|
; function_that_throws();
|
|
; CHECK-X64: callq _Z20function_that_throwsv
|
|
; _Unwind_SjLj_Unregister(&UFC);
|
|
; CHECK-X64: leaq -312(%rbp), %rcx
|
|
; CHECK-X64: callq _Unwind_SjLj_Unregister
|
|
;
|
|
; CHECK-X64: [[RESUME]]:
|
|
; assert(UFC.__callsite < 1);
|
|
; CHECK-X64: movl -304(%rbp), %eax
|
|
; CHECK-X64: cmpl $1, %eax
|
|
; CHECK-X64: jb .[[CONT:LBB[0-9]+_[0-9]+]]
|
|
; CHECK-X64: ud2
|
|
; CHECK-X64: [[CONT]]:
|
|
; *Handlers[UFC.__callsite]
|
|
; CHECK-X64: leaq .[[TABLE:LJTI[0-9]+_[0-9]+]](%rip), %rcx
|
|
; CHECK-X64: movl (%rcx,%rax,4), %eax
|
|
; CHECK-X64: cltq
|
|
; CHECK-X64: addq %rcx, %rax
|
|
; CHECK-X64: jmpq *%rax
|
|
|
|
; CHECK-X64-LINUX: .[[RESUME:LBB[0-9]+_[0-9]+]]:
|
|
; assert(UFC.__callsite < 1);
|
|
; CHECK-X64-LINUX: movl -120(%rbp), %eax
|
|
; CHECK-X64-LINUX: cmpl $1, %eax
|
|
; CHECK-X64-LINUX: jb .[[CONT:LBB[0-9]+_[0-9]+]]
|
|
; CHECK-X64-LINUX: ud2
|
|
; CHECK-X64-LINUX: [[CONT]]:
|
|
; *Handlers[UFC.__callsite]
|
|
; CHECK-X64-LINUX: leaq .[[TABLE:LJTI[0-9]+_[0-9]+]](%rip), %rcx
|
|
; CHECK-X64-LINUX: jmpq *(%rcx,%rax,8)
|