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https://github.com/c64scene-ar/llvm-6502.git
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7741851819
Differential Revision: http://reviews.llvm.org/D7398 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228733 91177308-0d34-0410-b5e6-96231b3b80d8
279 lines
9.8 KiB
LLVM
279 lines
9.8 KiB
LLVM
; RUN: opt -lint -disable-output < %s 2>&1 | FileCheck %s
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; This test is meant to prove that the Verifier is able to identify a variety
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; of errors with the llvm.eh.begincatch and llvm.eh.endcatch intrinsics.
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; See cppeh-catch-intrinsics-clean for correct uses.
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target triple = "x86_64-pc-windows-msvc"
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declare i8* @llvm.eh.begincatch(i8*)
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declare void @llvm.eh.endcatch()
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@_ZTIi = external constant i8*
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; Function Attrs: uwtable
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define void @test_missing_endcatch() {
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; CHECK: Some paths from llvm.eh.begincatch may not reach llvm.eh.endcatch
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; CHECK-NEXT: %2 = call i8* @llvm.eh.begincatch(i8* %exn)
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entry:
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %lpad
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%2 = call i8* @llvm.eh.begincatch(i8* %exn)
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call void @_Z10handle_intv()
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br label %invoke.cont2
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invoke.cont2: ; preds = %catch
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br label %try.cont
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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resume { i8*, i32 } %0
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}
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; Function Attrs: uwtable
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define void @test_missing_begincatch() {
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; CHECK: llvm.eh.endcatch may be reachable without passing llvm.eh.begincatch
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; CHECK-NEXT: call void @llvm.eh.endcatch()
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entry:
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %lpad
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call void @_Z10handle_intv()
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br label %invoke.cont2
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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resume { i8*, i32 } %0
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}
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; Function Attrs: uwtable
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define void @test_multiple_begin() {
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; CHECK: llvm.eh.begincatch may be called a second time before llvm.eh.endcatch
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; CHECK-NEXT: %2 = call i8* @llvm.eh.begincatch(i8* %exn)
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; CHECK-NEXT: %3 = call i8* @llvm.eh.begincatch(i8* %exn)
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entry:
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %lpad
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%2 = call i8* @llvm.eh.begincatch(i8* %exn)
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call void @_Z10handle_intv()
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br label %invoke.cont2
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invoke.cont2: ; preds = %catch
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%3 = call i8* @llvm.eh.begincatch(i8* %exn)
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call void @llvm.eh.endcatch()
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br label %try.cont
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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resume { i8*, i32 } %0
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}
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; Function Attrs: uwtable
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define void @test_multiple_end() {
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; CHECK: llvm.eh.endcatch may be called a second time after llvm.eh.begincatch
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; CHECK-NEXT: call void @llvm.eh.endcatch()
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; CHECK-NEXT: call void @llvm.eh.endcatch()
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entry:
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %lpad
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%2 = call i8* @llvm.eh.begincatch(i8* %exn)
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call void @_Z10handle_intv()
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call void @llvm.eh.endcatch()
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br label %invoke.cont2
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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resume { i8*, i32 } %0
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}
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; Function Attrs: uwtable
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define void @test_begincatch_without_lpad() {
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; CHECK: llvm.eh.begincatch may be reachable without passing a landingpad
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; CHECK-NEXT: %0 = call i8* @llvm.eh.begincatch(i8* %exn)
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entry:
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%exn = alloca i8
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%0 = call i8* @llvm.eh.begincatch(i8* %exn)
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call void @_Z10handle_intv()
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br label %invoke.cont2
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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}
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; Function Attrs: uwtable
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define void @test_branch_to_begincatch_with_no_lpad(i32 %fake.sel) {
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; CHECK: llvm.eh.begincatch may be reachable without passing a landingpad
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; CHECK-NEXT: %3 = call i8* @llvm.eh.begincatch(i8* %exn2)
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entry:
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%fake.exn = alloca i8
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invoke void @_Z9may_throwv()
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to label %catch unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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catch: ; preds = %lpad, %entry
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%exn2 = phi i8* [%exn, %lpad], [%fake.exn, %entry]
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%sel2 = phi i32 [%sel, %lpad], [%fake.sel, %entry]
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%3 = call i8* @llvm.eh.begincatch(i8* %exn2)
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call void @_Z10handle_intv()
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%matches1 = icmp eq i32 %sel2, 0
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br i1 %matches1, label %invoke.cont2, label %invoke.cont3
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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invoke.cont3: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %eh.resume
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try.cont: ; preds = %invoke.cont2
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ret void
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eh.resume: ; preds = %catch.dispatch
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%lpad.val = insertvalue { i8*, i32 } undef, i32 0, 1
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resume { i8*, i32 } %lpad.val
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}
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; Function Attrs: uwtable
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define void @test_branch_missing_endcatch() {
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; CHECK: Some paths from llvm.eh.begincatch may not reach llvm.eh.endcatch
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; CHECK-NEXT: %3 = call i8* @llvm.eh.begincatch(i8* %exn2)
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entry:
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invoke void @_Z9may_throwv()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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invoke void @_Z9may_throwv()
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to label %invoke.cont unwind label %lpad1
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad1: ; preds = %entry
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%l1.0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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cleanup
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn1 = extractvalue { i8*, i32 } %l1.0, 0
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%sel1 = extractvalue { i8*, i32 } %l1.0, 1
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%l1.1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matchesl1 = icmp eq i32 %sel1, %l1.1
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br i1 %matchesl1, label %catch, label %eh.resume
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catch: ; preds = %lpad, %lpad1
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%exn2 = phi i8* [%exn, %lpad], [%exn1, %lpad1]
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%sel2 = phi i32 [%sel, %lpad], [%sel1, %lpad1]
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%3 = call i8* @llvm.eh.begincatch(i8* %exn2)
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call void @_Z10handle_intv()
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%matches1 = icmp eq i32 %sel2, 0
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br i1 %matches1, label %invoke.cont2, label %invoke.cont3
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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invoke.cont3: ; preds = %catch
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br label %eh.resume
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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%lpad.val = insertvalue { i8*, i32 } undef, i32 0, 1
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resume { i8*, i32 } %lpad.val
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}
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declare void @_Z9may_throwv()
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*)
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declare void @_Z10handle_intv()
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