mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-21 02:29:22 +00:00
9c28314a68
Ultimately, __CxxFrameHandler3 needs us to put a stack offset in a table, and it will take responsibility for copying the exception object into that slot. Modelling the exception object as an SSA value returned by begincatch isn't going to work in general, so make it use an output parameter. Reviewers: andrew.w.kaylor Differential Revision: http://reviews.llvm.org/D7920 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231086 91177308-0d34-0410-b5e6-96231b3b80d8
279 lines
9.9 KiB
LLVM
279 lines
9.9 KiB
LLVM
; RUN: opt -lint -disable-output < %s 2>&1 | FileCheck %s
|
|
|
|
; This test is meant to prove that the Verifier is able to identify a variety
|
|
; of errors with the llvm.eh.begincatch and llvm.eh.endcatch intrinsics.
|
|
; See cppeh-catch-intrinsics-clean for correct uses.
|
|
|
|
target triple = "x86_64-pc-windows-msvc"
|
|
|
|
declare void @llvm.eh.begincatch(i8*, i8*)
|
|
|
|
declare void @llvm.eh.endcatch()
|
|
|
|
@_ZTIi = external constant i8*
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_missing_endcatch() {
|
|
; CHECK: Some paths from llvm.eh.begincatch may not reach llvm.eh.endcatch
|
|
; CHECK-NEXT: call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
entry:
|
|
invoke void @_Z9may_throwv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
lpad: ; preds = %entry
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn = extractvalue { i8*, i32 } %0, 0
|
|
%sel = extractvalue { i8*, i32 } %0, 1
|
|
%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matches = icmp eq i32 %sel, %1
|
|
br i1 %matches, label %catch, label %eh.resume
|
|
|
|
catch: ; preds = %lpad
|
|
call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
call void @_Z10handle_intv()
|
|
br label %invoke.cont2
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
br label %try.cont
|
|
|
|
try.cont: ; preds = %invoke.cont2, %entry
|
|
ret void
|
|
|
|
eh.resume: ; preds = %catch.dispatch
|
|
resume { i8*, i32 } %0
|
|
}
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_missing_begincatch() {
|
|
; CHECK: llvm.eh.endcatch may be reachable without passing llvm.eh.begincatch
|
|
; CHECK-NEXT: call void @llvm.eh.endcatch()
|
|
entry:
|
|
invoke void @_Z9may_throwv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
lpad: ; preds = %entry
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn = extractvalue { i8*, i32 } %0, 0
|
|
%sel = extractvalue { i8*, i32 } %0, 1
|
|
%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matches = icmp eq i32 %sel, %1
|
|
br i1 %matches, label %catch, label %eh.resume
|
|
|
|
catch: ; preds = %lpad
|
|
call void @_Z10handle_intv()
|
|
br label %invoke.cont2
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
try.cont: ; preds = %invoke.cont2, %entry
|
|
ret void
|
|
|
|
eh.resume: ; preds = %catch.dispatch
|
|
resume { i8*, i32 } %0
|
|
}
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_multiple_begin() {
|
|
; CHECK: llvm.eh.begincatch may be called a second time before llvm.eh.endcatch
|
|
; CHECK-NEXT: call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
; CHECK-NEXT: call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
entry:
|
|
invoke void @_Z9may_throwv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
lpad: ; preds = %entry
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn = extractvalue { i8*, i32 } %0, 0
|
|
%sel = extractvalue { i8*, i32 } %0, 1
|
|
%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matches = icmp eq i32 %sel, %1
|
|
br i1 %matches, label %catch, label %eh.resume
|
|
|
|
catch: ; preds = %lpad
|
|
call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
call void @_Z10handle_intv()
|
|
br label %invoke.cont2
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
try.cont: ; preds = %invoke.cont2, %entry
|
|
ret void
|
|
|
|
eh.resume: ; preds = %catch.dispatch
|
|
resume { i8*, i32 } %0
|
|
}
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_multiple_end() {
|
|
; CHECK: llvm.eh.endcatch may be called a second time after llvm.eh.begincatch
|
|
; CHECK-NEXT: call void @llvm.eh.endcatch()
|
|
; CHECK-NEXT: call void @llvm.eh.endcatch()
|
|
entry:
|
|
invoke void @_Z9may_throwv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
lpad: ; preds = %entry
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn = extractvalue { i8*, i32 } %0, 0
|
|
%sel = extractvalue { i8*, i32 } %0, 1
|
|
%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matches = icmp eq i32 %sel, %1
|
|
br i1 %matches, label %catch, label %eh.resume
|
|
|
|
catch: ; preds = %lpad
|
|
call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
call void @_Z10handle_intv()
|
|
call void @llvm.eh.endcatch()
|
|
br label %invoke.cont2
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
try.cont: ; preds = %invoke.cont2, %entry
|
|
ret void
|
|
|
|
eh.resume: ; preds = %catch.dispatch
|
|
resume { i8*, i32 } %0
|
|
}
|
|
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_begincatch_without_lpad() {
|
|
; CHECK: llvm.eh.begincatch may be reachable without passing a landingpad
|
|
; CHECK-NEXT: call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
entry:
|
|
%exn = alloca i8
|
|
call void @llvm.eh.begincatch(i8* %exn, i8* null)
|
|
call void @_Z10handle_intv()
|
|
br label %invoke.cont2
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
try.cont: ; preds = %invoke.cont2, %entry
|
|
ret void
|
|
}
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_branch_to_begincatch_with_no_lpad(i32 %fake.sel) {
|
|
; CHECK: llvm.eh.begincatch may be reachable without passing a landingpad
|
|
; CHECK-NEXT: call void @llvm.eh.begincatch(i8* %exn2, i8* null)
|
|
entry:
|
|
%fake.exn = alloca i8
|
|
invoke void @_Z9may_throwv()
|
|
to label %catch unwind label %lpad
|
|
|
|
lpad: ; preds = %entry
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn = extractvalue { i8*, i32 } %0, 0
|
|
%sel = extractvalue { i8*, i32 } %0, 1
|
|
%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matches = icmp eq i32 %sel, %1
|
|
br i1 %matches, label %catch, label %eh.resume
|
|
|
|
invoke void @_Z9may_throwv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
catch: ; preds = %lpad, %entry
|
|
%exn2 = phi i8* [%exn, %lpad], [%fake.exn, %entry]
|
|
%sel2 = phi i32 [%sel, %lpad], [%fake.sel, %entry]
|
|
call void @llvm.eh.begincatch(i8* %exn2, i8* null)
|
|
call void @_Z10handle_intv()
|
|
%matches1 = icmp eq i32 %sel2, 0
|
|
br i1 %matches1, label %invoke.cont2, label %invoke.cont3
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
invoke.cont3: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %eh.resume
|
|
|
|
try.cont: ; preds = %invoke.cont2
|
|
ret void
|
|
|
|
eh.resume: ; preds = %catch.dispatch
|
|
%lpad.val = insertvalue { i8*, i32 } undef, i32 0, 1
|
|
resume { i8*, i32 } %lpad.val
|
|
}
|
|
|
|
; Function Attrs: uwtable
|
|
define void @test_branch_missing_endcatch() {
|
|
; CHECK: Some paths from llvm.eh.begincatch may not reach llvm.eh.endcatch
|
|
; CHECK-NEXT: call void @llvm.eh.begincatch(i8* %exn2, i8* null)
|
|
entry:
|
|
invoke void @_Z9may_throwv()
|
|
to label %invoke.cont unwind label %lpad
|
|
|
|
invoke.cont:
|
|
invoke void @_Z9may_throwv()
|
|
to label %invoke.cont unwind label %lpad1
|
|
|
|
lpad: ; preds = %entry
|
|
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn = extractvalue { i8*, i32 } %0, 0
|
|
%sel = extractvalue { i8*, i32 } %0, 1
|
|
%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matches = icmp eq i32 %sel, %1
|
|
br i1 %matches, label %catch, label %eh.resume
|
|
|
|
invoke void @_Z9may_throwv()
|
|
to label %try.cont unwind label %lpad
|
|
|
|
lpad1: ; preds = %entry
|
|
%l1.0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
|
|
cleanup
|
|
catch i8* bitcast (i8** @_ZTIi to i8*)
|
|
%exn1 = extractvalue { i8*, i32 } %l1.0, 0
|
|
%sel1 = extractvalue { i8*, i32 } %l1.0, 1
|
|
%l1.1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
|
|
%matchesl1 = icmp eq i32 %sel1, %l1.1
|
|
br i1 %matchesl1, label %catch, label %eh.resume
|
|
|
|
catch: ; preds = %lpad, %lpad1
|
|
%exn2 = phi i8* [%exn, %lpad], [%exn1, %lpad1]
|
|
%sel2 = phi i32 [%sel, %lpad], [%sel1, %lpad1]
|
|
call void @llvm.eh.begincatch(i8* %exn2, i8* null)
|
|
call void @_Z10handle_intv()
|
|
%matches1 = icmp eq i32 %sel2, 0
|
|
br i1 %matches1, label %invoke.cont2, label %invoke.cont3
|
|
|
|
invoke.cont2: ; preds = %catch
|
|
call void @llvm.eh.endcatch()
|
|
br label %try.cont
|
|
|
|
invoke.cont3: ; preds = %catch
|
|
br label %eh.resume
|
|
|
|
try.cont: ; preds = %invoke.cont2, %entry
|
|
ret void
|
|
|
|
eh.resume: ; preds = %catch.dispatch
|
|
%lpad.val = insertvalue { i8*, i32 } undef, i32 0, 1
|
|
resume { i8*, i32 } %lpad.val
|
|
}
|
|
|
|
declare void @_Z9may_throwv()
|
|
|
|
declare i32 @__CxxFrameHandler3(...)
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare i32 @llvm.eh.typeid.for(i8*)
|
|
|
|
declare void @_Z10handle_intv()
|
|
|