forked from OSchip/llvm-project
131 lines
4.1 KiB
LLVM
131 lines
4.1 KiB
LLVM
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; RUN: llc -mtriple=i686-pc-windows-msvc < %s | FileCheck --check-prefix=X86 %s
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; RUN: llc -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) {
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; f(2);
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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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%eh.CatchHandlerType = type { i32, 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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@llvm.eh.handlertype.H.0 = private unnamed_addr constant %eh.CatchHandlerType { i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) }, section "llvm.metadata"
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@llvm.eh.handlertype.H.1 = private unnamed_addr constant %eh.CatchHandlerType { i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) }, section "llvm.metadata"
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declare void @f(i32 %p)
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declare i32 @__CxxFrameHandler3(...)
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define i32 @try_catch_catch() personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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invoke void @f(i32 1)
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to label %try.cont unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchpad [%eh.CatchHandlerType* @llvm.eh.handlertype.H.0, i8* null]
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to label %catch unwind label %catch.dispatch.2
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catch: ; preds = %catch.dispatch
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invoke void @f(i32 2)
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to label %invoke.cont.2 unwind label %catchendblock
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invoke.cont.2: ; preds = %catch
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catchret %0 to label %try.cont
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catch.dispatch.2: ; preds = %catch.dispatch
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%1 = catchpad [%eh.CatchHandlerType* @llvm.eh.handlertype.H.0, i8* null]
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to label %catch.2 unwind label %catchendblock
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catch.2: ; preds = %catch.dispatch.2
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invoke void @f(i32 3)
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to label %invoke.cont.3 unwind label %catchendblock
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invoke.cont.3: ; preds = %catch.2
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catchret %1 to label %try.cont
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try.cont: ; preds = %entry, %invoke.cont.2, %invoke.cont.3
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ret i32 0
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catchendblock: ; preds = %catch, %catch.2, %catch.dispatch.2
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catchendpad unwind to caller
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}
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; X86-LABEL: _try_catch_catch:
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; X86: movl $0, -{{[0-9]+}}(%ebp)
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; X86: movl $1, (%esp)
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; X86: calll _f
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; X86: [[contbb:LBB0_[0-9]+]]:
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; X86: movl -{{[0-9]+}}(%ebp), %esp
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; X86: retl
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; X86: [[catch1bb:LBB0_[0-9]+]]: # %catch{{$}}
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; X86: movl $1, -{{[0-9]+}}(%ebp)
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; X86: movl $2, (%esp)
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; X86: calll _f
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; X86: movl $[[contbb]], %eax
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; X86-NEXT: retl
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; X86: [[catch2bb:LBB0_[0-9]+]]: # %catch.2{{$}}
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; X86: movl $1, -{{[0-9]+}}(%ebp)
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; X86: movl $3, (%esp)
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; X86: calll _f
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; X86: movl $[[contbb]], %eax
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; X86-NEXT: retl
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; X86: L__ehtable$try_catch_catch:
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; X86: $handlerMap$0$try_catch_catch:
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; X86: .long 0
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; X86: .long "??_R0H@8"
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; X86: .long 0
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; X86: .long [[catch1bb]]
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; X86: .long 0
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; X86: .long "??_R0H@8"
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; X86: .long 0
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; X86: .long [[catch2bb]]
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; X64-LABEL: try_catch_catch:
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; X64: movl $1, %ecx
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; X64: callq f
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; X64: [[contbb:\.LBB0_[0-9]+]]:
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; X64: retq
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; X64: [[catch1bb:\.LBB0_[0-9]+]]: # %catch{{$}}
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; X64: movl $2, %ecx
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; X64: callq f
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; X64: leaq [[contbb]](%rip), %rax
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; X64: retq
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; X64: [[catch2bb:\.LBB0_[0-9]+]]: # %catch.2{{$}}
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; X64: movl $3, %ecx
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; X64: callq f
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; X64: leaq [[contbb]](%rip), %rax
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; X64: retq
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; FIXME: Get rid of these parent_frame_offset things below. They are leftover
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; from our IR outlining strategy.
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; X64: $handlerMap$0$try_catch_catch:
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; X64: .long 0
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; X64: .long "??_R0H@8"@IMGREL
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; X64: .long 0
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; X64: .long [[catch1bb]]@IMGREL
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; X64 .long .Lcatch$parent_frame_offset
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; X64: .long 0
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; X64: .long "??_R0H@8"@IMGREL
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; X64: .long 0
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; X64: .long [[catch2bb]]@IMGREL
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; X64 .long .Lcatch.2$parent_frame_offset
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