forked from OSchip/llvm-project
354 lines
10 KiB
LLVM
354 lines
10 KiB
LLVM
; RUN: llc -stack-symbol-ordering=0 -verify-machineinstrs -mtriple=i686-pc-windows-msvc < %s | FileCheck --check-prefix=X86 %s
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; RUN: llc -stack-symbol-ordering=0 -verify-machineinstrs -mtriple=x86_64-pc-windows-msvc < %s | FileCheck --check-prefix=X64 %s
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; Loosely based on IR for this C++ source code:
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; void f(int p);
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; int main() {
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; try {
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; f(1);
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; } catch (int e) {
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; f(e);
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; } catch (...) {
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; f(3);
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; }
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; }
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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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%eh.CatchableType = type { i32, i8*, i32, i32, i32, i32, i8* }
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%eh.CatchableTypeArray.1 = type { i32, [1 x %eh.CatchableType*] }
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%eh.ThrowInfo = type { i32, i8*, i8*, i8* }
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$"\01??_R0H@8" = comdat any
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@"\01??_7type_info@@6B@" = external constant i8*
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@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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declare void @f(i32 %p, i32* %l)
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declare i1 @getbool()
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declare i32 @__CxxFrameHandler3(...)
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define i32 @try_catch_catch() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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%e.addr = alloca i32
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%local = alloca i32
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invoke void @f(i32 1, i32* %local)
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to label %try.cont unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%cs = catchswitch within none [label %handler1, label %handler2] unwind to caller
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handler1:
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%h1 = catchpad within %cs [%rtti.TypeDescriptor2* @"\01??_R0H@8", i32 0, i32* %e.addr]
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%e = load i32, i32* %e.addr
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call void @f(i32 %e, i32* %local) [ "funclet"(token %h1) ]
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catchret from %h1 to label %try.cont
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handler2:
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%h2 = catchpad within %cs [i8* null, i32 64, i8* null]
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call void @f(i32 3, i32* %local) [ "funclet"(token %h2) ]
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catchret from %h2 to label %try.cont
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try.cont:
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ret i32 0
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}
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; X86-LABEL: _try_catch_catch:
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; X86: movl %esp, -[[sp_offset:[0-9]+]](%ebp)
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; X86: movl $0, -{{[0-9]+}}(%ebp)
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; X86: leal -[[local_offs:[0-9]+]](%ebp), %[[addr_reg:[a-z]+]]
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; X86-DAG: movl %[[addr_reg]], 4(%esp)
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; X86-DAG: movl $1, (%esp)
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; X86: calll _f
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; X86: [[contbb:LBB0_[0-9]+]]: # %try.cont
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; X86: retl
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; X86: [[restorebb1:LBB0_[0-9]+]]: # Block address taken
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; X86-NEXT: # %handler1
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; X86-NEXT: addl $12, %ebp
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; X86: jmp [[contbb]]
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; FIXME: These should be de-duplicated.
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; X86: [[restorebb2:LBB0_[0-9]+]]: # Block address taken
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; X86-NEXT: # %handler2
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; X86-NEXT: addl $12, %ebp
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; X86: jmp [[contbb]]
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; X86: "?catch$[[catch1bb:[0-9]+]]@?0?try_catch_catch@4HA":
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; X86: LBB0_[[catch1bb]]: # %handler1{{$}}
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; X86: pushl %ebp
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; X86: subl $8, %esp
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; X86: addl $12, %ebp
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; X86: movl %esp, -[[sp_offset]](%ebp)
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; X86-DAG: movl -32(%ebp), %[[e_reg:[a-z]+]]
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; X86-DAG: leal -[[local_offs]](%ebp), %[[addr_reg:[a-z]+]]
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; X86-DAG: movl $1, -{{[0-9]+}}(%ebp)
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; X86-DAG: movl %[[addr_reg]], 4(%esp)
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; X86-DAG: movl %[[e_reg]], (%esp)
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; X86: calll _f
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; X86-NEXT: movl $[[restorebb1]], %eax
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; X86-NEXT: addl $8, %esp
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl
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; X86: "?catch$[[catch2bb:[0-9]+]]@?0?try_catch_catch@4HA":
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; X86: LBB0_[[catch2bb]]: # %handler2{{$}}
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; X86: pushl %ebp
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; X86: subl $8, %esp
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; X86: addl $12, %ebp
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; X86: movl %esp, -[[sp_offset]](%ebp)
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; X86-DAG: leal -[[local_offs]](%ebp), %[[addr_reg:[a-z]+]]
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; X86-DAG: movl $1, -{{[0-9]+}}(%ebp)
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; X86-DAG: movl %[[addr_reg]], 4(%esp)
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; X86-DAG: movl $3, (%esp)
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; X86: calll _f
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; X86-NEXT: movl $[[restorebb2]], %eax
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; X86-NEXT: addl $8, %esp
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl
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; X86: L__ehtable$try_catch_catch:
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; X86: $handlerMap$0$try_catch_catch:
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; X86-NEXT: .long 0
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; X86-NEXT: .long "??_R0H@8"
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; X86-NEXT: .long -20
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; X86-NEXT: .long "?catch$[[catch1bb]]@?0?try_catch_catch@4HA"
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; X86-NEXT: .long 64
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; X86-NEXT: .long 0
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; X86-NEXT: .long 0
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; X86-NEXT: .long "?catch$[[catch2bb]]@?0?try_catch_catch@4HA"
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; X64-LABEL: try_catch_catch:
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; X64: Lfunc_begin0:
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: subq $48, %rsp
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; X64: .seh_stackalloc 48
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; X64: leaq 48(%rsp), %rbp
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; X64: .seh_setframe 5, 48
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; X64: .seh_endprologue
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; X64: movq $-2, -8(%rbp)
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; X64: .Ltmp0
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; X64-DAG: leaq -[[local_offs:[0-9]+]](%rbp), %rdx
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; X64-DAG: movl $1, %ecx
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; X64: callq f
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; X64: [[contbb:\.LBB0_[0-9]+]]: # Block address taken
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; X64-NEXT: # %try.cont
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; X64: addq $48, %rsp
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; X64: popq %rbp
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; X64: retq
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; X64: "?catch$[[catch1bb:[0-9]+]]@?0?try_catch_catch@4HA":
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; X64: LBB0_[[catch1bb]]: # %handler1{{$}}
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; X64: movq %rdx, 16(%rsp)
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: subq $32, %rsp
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; X64: .seh_stackalloc 32
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; X64: leaq 48(%rdx), %rbp
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; X64: .seh_endprologue
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; X64-DAG: leaq -[[local_offs]](%rbp), %rdx
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; X64-DAG: movl -12(%rbp), %ecx
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; X64: callq f
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; X64: leaq [[contbb]](%rip), %rax
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; X64-NEXT: addq $32, %rsp
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; X64-NEXT: popq %rbp
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; X64-NEXT: retq
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; X64: "?catch$[[catch2bb:[0-9]+]]@?0?try_catch_catch@4HA":
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; X64: LBB0_[[catch2bb]]: # %handler2{{$}}
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; X64: movq %rdx, 16(%rsp)
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: subq $32, %rsp
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; X64: .seh_stackalloc 32
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; X64: leaq 48(%rdx), %rbp
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; X64: .seh_endprologue
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; X64-DAG: leaq -[[local_offs]](%rbp), %rdx
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; X64-DAG: movl $3, %ecx
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; X64: callq f
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; X64: leaq [[contbb]](%rip), %rax
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; X64-NEXT: addq $32, %rsp
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; X64-NEXT: popq %rbp
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; X64-NEXT: retq
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; X64: $cppxdata$try_catch_catch:
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; X64-NEXT: .long 429065506
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; X64-NEXT: .long 2
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; X64-NEXT: .long ($stateUnwindMap$try_catch_catch)@IMGREL
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; X64-NEXT: .long 1
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; X64-NEXT: .long ($tryMap$try_catch_catch)@IMGREL
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; X64-NEXT: .long 5
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; X64-NEXT: .long ($ip2state$try_catch_catch)@IMGREL
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; X64-NEXT: .long 40
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; X64-NEXT: .long 0
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; X64-NEXT: .long 1
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; X64: $tryMap$try_catch_catch:
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; X64-NEXT: .long 0
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; X64-NEXT: .long 0
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; X64-NEXT: .long 1
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; X64-NEXT: .long 2
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; X64-NEXT: .long ($handlerMap$0$try_catch_catch)@IMGREL
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; X64: $handlerMap$0$try_catch_catch:
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; X64-NEXT: .long 0
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; X64-NEXT: .long "??_R0H@8"@IMGREL
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; X64-NEXT: .long 36
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; X64-NEXT: .long "?catch$[[catch1bb]]@?0?try_catch_catch@4HA"@IMGREL
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; X64-NEXT: .long 56
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; X64-NEXT: .long 64
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; X64-NEXT: .long 0
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; X64-NEXT: .long 0
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; X64-NEXT: .long "?catch$[[catch2bb]]@?0?try_catch_catch@4HA"@IMGREL
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; X64-NEXT: .long 56
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; X64: $ip2state$try_catch_catch:
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; X64-NEXT: .long .Lfunc_begin0@IMGREL
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; X64-NEXT: .long -1
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; X64-NEXT: .long .Ltmp0@IMGREL+1
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; X64-NEXT: .long 0
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; X64-NEXT: .long .Ltmp1@IMGREL+1
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; X64-NEXT: .long -1
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; X64-NEXT: .long "?catch$[[catch1bb]]@?0?try_catch_catch@4HA"@IMGREL
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; X64-NEXT: .long 1
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; X64-NEXT: .long "?catch$[[catch2bb]]@?0?try_catch_catch@4HA"@IMGREL
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; X64-NEXT: .long 1
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define i32 @branch_to_normal_dest() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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invoke void @f(i32 1, i32* null)
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to label %try.cont unwind label %catch.dispatch
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catch.dispatch:
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%cs1 = catchswitch within none [label %catch] unwind to caller
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catch:
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%cp1 = catchpad within %cs1 [i8* null, i32 64, i8* null]
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br label %loop
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loop:
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%V = call i1 @getbool() [ "funclet"(token %cp1) ]
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br i1 %V, label %loop, label %catch.done
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catch.done:
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catchret from %cp1 to label %try.cont
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try.cont:
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ret i32 0
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}
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; X86-LABEL: _branch_to_normal_dest:
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; X86: calll _f
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; X86: [[contbb:LBB1_[0-9]+]]: # %try.cont
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; X86: retl
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; X86: [[restorebb:LBB1_[0-9]+]]: # Block address taken
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; X86-NEXT: # %catch.done
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; X86-NEXT: addl $12, %ebp
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; X86: jmp [[contbb]]
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; X86: "?catch$[[catchbb:[0-9]+]]@?0?branch_to_normal_dest@4HA":
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; X86: LBB1_[[catchbb]]: # %catch{{$}}
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; X86: pushl %ebp
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; X86: subl $8, %esp
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; X86: addl $12, %ebp
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; X86: LBB1_[[loopbb:[0-9]+]]: # %loop
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; X86: movl $1, -16(%ebp)
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; X86: calll _getbool
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; X86: testb $1, %al
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; X86: jne LBB1_[[loopbb]]
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; X86: # %catch.done
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; X86-NEXT: movl $[[restorebb]], %eax
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; X86-NEXT: addl $8, %esp
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl
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; X86: L__ehtable$branch_to_normal_dest:
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; X86: $handlerMap$0$branch_to_normal_dest:
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; X86-NEXT: .long 64
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; X86-NEXT: .long 0
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; X86-NEXT: .long 0
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; X86-NEXT: .long "?catch$[[catchbb]]@?0?branch_to_normal_dest@4HA"
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; X64-LABEL: branch_to_normal_dest:
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; X64: # %entry
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: subq $48, %rsp
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; X64: .seh_stackalloc 48
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; X64: leaq 48(%rsp), %rbp
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; X64: .seh_setframe 5, 48
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; X64: .seh_endprologue
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; X64: .Ltmp[[before_call:[0-9]+]]:
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; X64: callq f
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; X64: .Ltmp[[after_call:[0-9]+]]:
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; X64: [[contbb:\.LBB1_[0-9]+]]: # Block address taken
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; X64-NEXT: # %try.cont
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; X64: addq $48, %rsp
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; X64: popq %rbp
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; X64: retq
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; X64: "?catch$[[catchbb:[0-9]+]]@?0?branch_to_normal_dest@4HA":
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; X64: LBB1_[[catchbb]]: # %catch{{$}}
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; X64: movq %rdx, 16(%rsp)
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: subq $32, %rsp
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; X64: .seh_stackalloc 32
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; X64: leaq 48(%rdx), %rbp
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; X64: .seh_endprologue
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; X64: .LBB1_[[normal_dest_bb:[0-9]+]]: # %loop
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; X64: callq getbool
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; X64: testb $1, %al
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; X64: jne .LBB1_[[normal_dest_bb]]
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; X64: # %catch.done
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; X64: leaq [[contbb]](%rip), %rax
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; X64-NEXT: addq $32, %rsp
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; X64-NEXT: popq %rbp
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; X64-NEXT: retq
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; X64-LABEL: $cppxdata$branch_to_normal_dest:
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; X64-NEXT: .long 429065506
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; X64-NEXT: .long 2
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; X64-NEXT: .long ($stateUnwindMap$branch_to_normal_dest)@IMGREL
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; X64-NEXT: .long 1
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; X64-NEXT: .long ($tryMap$branch_to_normal_dest)@IMGREL
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; X64-NEXT: .long 4
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; X64-NEXT: .long ($ip2state$branch_to_normal_dest)@IMGREL
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; X64-NEXT: .long 40
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; X64-NEXT: .long 0
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; X64-NEXT: .long 1
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; X64-LABEL: $stateUnwindMap$branch_to_normal_dest:
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; X64-NEXT: .long -1
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; X64-NEXT: .long 0
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; X64-NEXT: .long -1
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; X64-NEXT: .long 0
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; X64-LABEL: $tryMap$branch_to_normal_dest:
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; X64-NEXT: .long 0
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; X64-NEXT: .long 0
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; X64-NEXT: .long 1
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; X64-NEXT: .long 1
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; X64-NEXT: .long ($handlerMap$0$branch_to_normal_dest)@IMGREL
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; X64-LABEL: $handlerMap$0$branch_to_normal_dest:
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; X64-NEXT: .long 64
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; X64-NEXT: .long 0
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; X64-NEXT: .long 0
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; X64-NEXT: .long "?catch$[[catchbb]]@?0?branch_to_normal_dest@4HA"@IMGREL
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; X64-NEXT: .long 56
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; X64-LABEL: $ip2state$branch_to_normal_dest:
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; X64-NEXT: .long .Lfunc_begin1@IMGREL
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; X64-NEXT: .long -1
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; X64-NEXT: .long .Ltmp[[before_call]]@IMGREL+1
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; X64-NEXT: .long 0
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; X64-NEXT: .long .Ltmp[[after_call]]@IMGREL+1
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; X64-NEXT: .long -1
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; X64-NEXT: .long "?catch$[[catchbb]]@?0?branch_to_normal_dest@4HA"@IMGREL
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; X64-NEXT: .long 1
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