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|
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39439.
; RUN: llc -mtriple i386-windows-gnu -exception-model sjlj -filetype asm -o - %s -verify-machineinstrs=0 | FileCheck %s
; RUN: llc -mtriple x86_64-windows-gnu -exception-model sjlj -filetype asm -o - %s -verify-machineinstrs=0 | FileCheck %s -check-prefix CHECK-X64
; RUN: llc -mtriple x86_64-linux -exception-model sjlj -filetype asm -o - %s -verify-machineinstrs=0 | FileCheck %s -check-prefix CHECK-X64-LINUX
declare void @_Z20function_that_throwsv()
declare i32 @__gxx_personality_sj0(...)
declare ptr @__cxa_begin_catch(ptr)
declare void @__cxa_end_catch()
define void @_Z8functionv() personality ptr @__gxx_personality_sj0 {
entry:
invoke void @_Z20function_that_throwsv()
to label %try.cont unwind label %lpad
lpad:
%0 = landingpad { ptr, i32 }
catch ptr null
%1 = extractvalue { ptr, i32 } %0, 0
%2 = tail call ptr @__cxa_begin_catch(ptr %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 ptr__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 ptr__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)
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