diff options
Diffstat (limited to 'test/CodeGen/WinEH/cppeh-catch-all-win32.ll')
-rw-r--r-- | test/CodeGen/WinEH/cppeh-catch-all-win32.ll | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/test/CodeGen/WinEH/cppeh-catch-all-win32.ll b/test/CodeGen/WinEH/cppeh-catch-all-win32.ll new file mode 100644 index 0000000..b2e84b9 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-catch-all-win32.ll @@ -0,0 +1,86 @@ +; RUN: opt -winehprepare -S -o - < %s | FileCheck %s + +; This test is based on the following code: +; +; extern "C" void may_throw(); +; extern "C" void handle_exception(); +; extern "C" void test() { +; try { +; may_throw(); +; } catch (...) { +; handle_exception(); +; } +; } + +target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" +target triple = "i686-pc-windows-msvc" + +; The function entry in this case remains unchanged. +; CHECK: define void @test() +; CHECK: entry: +; CHECK: invoke void @may_throw() +; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]] + +define void @test() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) { +entry: + %exn.slot = alloca i8* + %ehselector.slot = alloca i32 + invoke void @may_throw() + 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* ()* @test.catch) +; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont] + +lpad: ; preds = %entry + %0 = landingpad { i8*, i32 } + catch i8* null + %1 = extractvalue { i8*, i32 } %0, 0 + store i8* %1, i8** %exn.slot + %2 = extractvalue { i8*, i32 } %0, 1 + store i32 %2, i32* %ehselector.slot + br label %catch + +; CHECK-NOT: catch: +; CHECK-NOT: @handle_exception() + +catch: ; preds = %lpad + %exn = load i8*, i8** %exn.slot + call void @llvm.eh.begincatch(i8* %exn, i8* null) #1 + call void @handle_exception() + call void @llvm.eh.endcatch() #1 + br label %try.cont + +try.cont: ; preds = %catch, %invoke.cont + ret void + +; CHECK: } +} + +; CHECK: define internal i8* @test.catch() +; CHECK: call i8* @llvm.frameaddress(i32 1) +; CHECK: call i8* @llvm.x86.seh.recoverfp(i8* bitcast (void ()* @test to i8*), i8* %{{.*}}) +; CHECK: call void @handle_exception() +; CHECK: ret i8* blockaddress(@test, %try.cont) +; CHECK: } + + +declare void @may_throw() #0 + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind +declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #1 + +declare void @handle_exception() #0 + +; Function Attrs: nounwind +declare void @llvm.eh.endcatch() #1 + +attributes #0 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind } |