mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-14 11:32:34 +00:00
cc714e2142
The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
98 lines
3.2 KiB
LLVM
98 lines
3.2 KiB
LLVM
; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
|
|
|
|
; This test is based on the following code:
|
|
;
|
|
; void test()
|
|
; {
|
|
; try {
|
|
; may_throw();
|
|
; } catch (...) {
|
|
; handle_exception();
|
|
; }
|
|
; }
|
|
;
|
|
; Parts of the IR have been hand-edited to simplify the test case.
|
|
; The full IR will be restored when Windows C++ EH support is complete.
|
|
|
|
; ModuleID = 'catch-all.cpp'
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-pc-windows-msvc"
|
|
|
|
; The function entry in this case remains unchanged.
|
|
; CHECK: define void @_Z4testv()
|
|
; CHECK: entry:
|
|
; CHECK: invoke void @_Z9may_throwv()
|
|
; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]]
|
|
|
|
; Function Attrs: uwtable
|
|
define void @_Z4testv() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
|
|
entry:
|
|
%exn.slot = alloca i8*
|
|
%ehselector.slot = alloca i32
|
|
invoke void @_Z9may_throwv()
|
|
to label %invoke.cont unwind label %lpad
|
|
|
|
invoke.cont: ; preds = %entry
|
|
br label %try.cont
|
|
|
|
; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry
|
|
; CHECK: landingpad { i8*, i32 }
|
|
; CHECK-NEXT: catch i8* null
|
|
; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @_Z4testv.catch)
|
|
; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont]
|
|
|
|
lpad: ; preds = %entry
|
|
%tmp = landingpad { i8*, i32 }
|
|
catch i8* null
|
|
%tmp1 = extractvalue { i8*, i32 } %tmp, 0
|
|
store i8* %tmp1, i8** %exn.slot
|
|
%tmp2 = extractvalue { i8*, i32 } %tmp, 1
|
|
store i32 %tmp2, i32* %ehselector.slot
|
|
br label %catch
|
|
|
|
; CHECK-NOT: catch:
|
|
|
|
catch: ; preds = %lpad
|
|
%exn = load i8*, i8** %exn.slot
|
|
call void @llvm.eh.begincatch(i8* %exn, i8* null) #2
|
|
call void @_Z16handle_exceptionv()
|
|
br label %invoke.cont2
|
|
|
|
; CHECK-NOT: invoke.cont2:
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
try.cont: ; preds = %invoke.cont2, %invoke.cont
|
|
ret void
|
|
|
|
; CHECK: }
|
|
}
|
|
|
|
; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*)
|
|
; CHECK: entry:
|
|
; CHECK: call void @_Z16handle_exceptionv()
|
|
; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont)
|
|
; CHECK: }
|
|
|
|
declare void @_Z9may_throwv() #1
|
|
|
|
declare i32 @__CxxFrameHandler3(...)
|
|
|
|
declare void @llvm.eh.begincatch(i8*, i8*)
|
|
|
|
declare void @_Z16handle_exceptionv() #1
|
|
|
|
declare void @llvm.eh.endcatch()
|
|
|
|
attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
|
|
attributes #2 = { noinline noreturn nounwind }
|
|
attributes #3 = { nounwind }
|
|
attributes #4 = { noreturn nounwind }
|
|
|
|
!llvm.ident = !{!0}
|
|
|
|
!0 = !{!"clang version 3.7.0 (trunk 226027)"}
|