maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/WebAssembly/wasmehprepare.ll

318 lines
13 KiB
LLVM
Raw Blame History

; RUN: opt < %s -winehprepare -demote-catchswitch-only -wasmehprepare -S | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
; CHECK: @__wasm_lpad_context = external global { i32, i8*, i32 }
@_ZTIi = external constant i8*
%struct.Cleanup = type { i8 }
; A single 'catch (int)' clause.
; A wasm.catch() call, wasm.lsda() call, and personality call to generate a
; selector should all be genereated after the catchpad.
define void @test0() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
; CHECK-LABEL: @test0()
entry:
invoke void @foo()
to label %try.cont unwind label %catch.dispatch
catch.dispatch: ; preds = %entry
%0 = catchswitch within none [label %catch.start] unwind to caller
catch.start: ; preds = %catch.dispatch
%1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)]
%2 = call i8* @llvm.wasm.get.exception(token %1)
%3 = call i32 @llvm.wasm.get.ehselector(token %1)
%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
%matches = icmp eq i32 %3, %4
br i1 %matches, label %catch, label %rethrow
; CHECK: catch.start:
; CHECK-NEXT: %[[CATCHPAD:.*]] = catchpad
; CHECK-NEXT: %[[EXN:.*]] = call i8* @llvm.wasm.catch(i32 0)
; CHECK-NEXT: call void @llvm.wasm.landingpad.index(i32 0)
; CHECK-NEXT: store i32 0, i32* getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 0)
; CHECK-NEXT: %[[LSDA:.*]] = call i8* @llvm.wasm.lsda()
; CHECK-NEXT: store i8* %[[LSDA]], i8** getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 1)
; CHECK-NEXT: call i32 @_Unwind_CallPersonality(i8* %[[EXN]]) {{.*}} [ "funclet"(token %[[CATCHPAD]]) ]
; CHECK-NEXT: %[[SELECTOR:.*]] = load i32, i32* getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 2)
; CHECK: icmp eq i32 %[[SELECTOR]]
catch: ; preds = %catch.start
%5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
call void @__cxa_end_catch() [ "funclet"(token %1) ]
catchret from %1 to label %try.cont
; CHECK: catch:
; CHECK-NEXT: call i8* @__cxa_begin_catch(i8* %[[EXN]])
rethrow: ; preds = %catch.start
call void @__cxa_rethrow() [ "funclet"(token %1) ]
unreachable
try.cont: ; preds = %entry, %catch
ret void
}
; Two try-catches, one of them is with a single 'catch (...)' clause.
; For the catchpad with a single 'catch (...)', only a wasm.catch() call should
; be generated after the catchpad; wasm.landingpad.index() and personality call
; should NOT be generated. For the other catchpad, the argument of
; wasm.landingpad.index() should be not 1 but 0.
define void @test1() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
; CHECK-LABEL: @test1()
entry:
invoke void @foo()
to label %try.cont unwind label %catch.dispatch
catch.dispatch: ; preds = %entry
%0 = catchswitch within none [label %catch.start] unwind to caller
catch.start: ; preds = %catch.dispatch
%1 = catchpad within %0 [i8* null]
%2 = call i8* @llvm.wasm.get.exception(token %1)
%3 = call i32 @llvm.wasm.get.ehselector(token %1)
%4 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
call void @__cxa_end_catch() [ "funclet"(token %1) ]
catchret from %1 to label %try.cont
; CHECK: catch.start:
; CHECK-NEXT: catchpad within %0 [i8* null]
; CHECK-NEXT: call i8* @llvm.wasm.catch(i32 0)
; CHECK-NOT: call void @llvm.wasm.landingpad.index
; CHECK-NOT: store {{.*}} @__wasm_lpad_context
; CHECK-NOT: call i8* @llvm.wasm.lsda()
; CHECK-NOT: call i32 @_Unwind_CallPersonality
; CHECK-NOT: load {{.*}} @__wasm_lpad_context
try.cont: ; preds = %entry, %catch.start
invoke void @foo()
to label %try.cont7 unwind label %catch.dispatch2
catch.dispatch2: ; preds = %try.cont
%5 = catchswitch within none [label %catch.start3] unwind to caller
catch.start3: ; preds = %catch.dispatch2
%6 = catchpad within %5 [i8* bitcast (i8** @_ZTIi to i8*)]
%7 = call i8* @llvm.wasm.get.exception(token %6)
%8 = call i32 @llvm.wasm.get.ehselector(token %6)
%9 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
%matches = icmp eq i32 %8, %9
br i1 %matches, label %catch4, label %rethrow
; CHECK: catch.start3:
; CHECK: call void @llvm.wasm.landingpad.index(i32 0)
catch4: ; preds = %catch.start3
%10 = call i8* @__cxa_begin_catch(i8* %7) [ "funclet"(token %6) ]
call void @__cxa_end_catch() [ "funclet"(token %6) ]
catchret from %6 to label %try.cont7
rethrow: ; preds = %catch.start3
call void @__cxa_rethrow() [ "funclet"(token %6) ]
unreachable
try.cont7: ; preds = %try.cont, %catch4
ret void
}
; A nested try-catch within a catch. Within the nested catchpad, wasm.lsda()
; call should NOT be generated.
define void @test2() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
; CHECK-LABEL: @test2()
entry:
invoke void @foo()
to label %try.cont9 unwind label %catch.dispatch
catch.dispatch: ; preds = %entry
%0 = catchswitch within none [label %catch.start] unwind to caller
catch.start: ; preds = %catch.dispatch
%1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)]
%2 = call i8* @llvm.wasm.get.exception(token %1)
%3 = call i32 @llvm.wasm.get.ehselector(token %1)
%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
%matches = icmp eq i32 %3, %4
br i1 %matches, label %catch, label %rethrow
; CHECK: catch.start:
; CHECK: call i8* @llvm.wasm.lsda()
catch: ; preds = %catch.start
%5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
invoke void @foo() [ "funclet"(token %1) ]
to label %try.cont unwind label %catch.dispatch2
catch.dispatch2: ; preds = %catch
%6 = catchswitch within %1 [label %catch.start3] unwind label %ehcleanup
catch.start3: ; preds = %catch.dispatch2
%7 = catchpad within %6 [i8* bitcast (i8** @_ZTIi to i8*)]
%8 = call i8* @llvm.wasm.get.exception(token %7)
%9 = call i32 @llvm.wasm.get.ehselector(token %7)
%10 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
%matches4 = icmp eq i32 %9, %10
br i1 %matches4, label %catch6, label %rethrow5
; CHECK: catch.start3:
; CHECK-NOT: call i8* @llvm.wasm.lsda()
catch6: ; preds = %catch.start3
%11 = call i8* @__cxa_begin_catch(i8* %8) [ "funclet"(token %7) ]
call void @__cxa_end_catch() [ "funclet"(token %7) ]
catchret from %7 to label %try.cont
rethrow5: ; preds = %catch.start3
invoke void @__cxa_rethrow() [ "funclet"(token %7) ]
to label %unreachable unwind label %ehcleanup
try.cont: ; preds = %catch, %catch6
call void @__cxa_end_catch() [ "funclet"(token %1) ]
catchret from %1 to label %try.cont9
rethrow: ; preds = %catch.start
call void @__cxa_rethrow() [ "funclet"(token %1) ]
unreachable
try.cont9: ; preds = %entry, %try.cont
ret void
ehcleanup: ; preds = %rethrow5, %catch.dispatch2
%12 = cleanuppad within %1 []
call void @__cxa_end_catch() [ "funclet"(token %12) ]
cleanupret from %12 unwind to caller
; CHECK: ehcleanup:
; CHECK-NEXT: cleanuppad
; CHECK-NOT: call i8* @llvm.wasm.catch(i32 0)
; CHECK-NOT: call void @llvm.wasm.landingpad.index
; CHECK-NOT: store {{.*}} @__wasm_lpad_context
; CHECK-NOT: call i8* @llvm.wasm.lsda()
; CHECK-NOT: call i32 @_Unwind_CallPersonality
; CHECK-NOT: load {{.*}} @__wasm_lpad_context
unreachable: ; preds = %rethrow5
unreachable
}
; A cleanuppad with a call to __clang_call_terminate().
; A call to wasm.catch() should be generated after the cleanuppad.
define hidden void @test3() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
; CHECK-LABEL: @test3
entry:
invoke void @foo()
to label %try.cont unwind label %catch.dispatch
catch.dispatch: ; preds = %entry
%0 = catchswitch within none [label %catch.start] unwind to caller
catch.start: ; preds = %catch.dispatch
%1 = catchpad within %0 [i8* null]
%2 = call i8* @llvm.wasm.get.exception(token %1)
%3 = call i32 @llvm.wasm.get.ehselector(token %1)
%4 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
invoke void @foo() [ "funclet"(token %1) ]
to label %invoke.cont1 unwind label %ehcleanup
invoke.cont1: ; preds = %catch.start
call void @__cxa_end_catch() [ "funclet"(token %1) ]
catchret from %1 to label %try.cont
try.cont: ; preds = %entry, %invoke.cont1
ret void
ehcleanup: ; preds = %catch.start
%5 = cleanuppad within %1 []
invoke void @__cxa_end_catch() [ "funclet"(token %5) ]
to label %invoke.cont2 unwind label %terminate
invoke.cont2: ; preds = %ehcleanup
cleanupret from %5 unwind to caller
terminate: ; preds = %ehcleanup
%6 = cleanuppad within %5 []
%7 = call i8* @llvm.wasm.get.exception(token %6)
call void @__clang_call_terminate(i8* %7) [ "funclet"(token %6) ]
unreachable
; CHECK: terminate:
; CHECK-NEXT: cleanuppad
; CHECK-NEXT: %[[EXN:.*]] = call i8* @llvm.wasm.catch(i32 0)
; CHECK-NEXT: call void @__clang_call_terminate(i8* %[[EXN]])
}
; PHI demotion test. Only the phi before catchswitch should be demoted; the phi
; before cleanuppad should NOT.
define void @test5() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
; CHECK-LABEL: @test5
entry:
%c = alloca %struct.Cleanup, align 1
invoke void @foo()
to label %invoke.cont unwind label %ehcleanup
invoke.cont: ; preds = %entry
invoke void @foo()
to label %invoke.cont1 unwind label %ehcleanup
invoke.cont1: ; preds = %invoke.cont
%call = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c)
br label %try.cont
ehcleanup: ; preds = %invoke.cont, %entry
%num.0 = phi i32 [ 2, %invoke.cont ], [ 1, %entry ]
%0 = cleanuppad within none []
%call2 = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) [ "funclet"(token %0) ]
cleanupret from %0 unwind label %catch.dispatch
; CHECK: ehcleanup:
; CHECK-NEXT: = phi
catch.dispatch: ; preds = %ehcleanup
%1 = catchswitch within none [label %catch.start] unwind to caller
catch.start: ; preds = %catch.dispatch
%2 = catchpad within %1 [i8* null]
%3 = call i8* @llvm.wasm.get.exception(token %2)
%4 = call i32 @llvm.wasm.get.ehselector(token %2)
%5 = call i8* @__cxa_begin_catch(i8* %3) [ "funclet"(token %2) ]
call void @func(i32 %num.0) [ "funclet"(token %2) ]
call void @__cxa_end_catch() [ "funclet"(token %2) ]
catchret from %2 to label %try.cont
try.cont: ; preds = %catch.start, %invoke.cont1
invoke void @foo()
to label %invoke.cont3 unwind label %catch.dispatch5
invoke.cont3: ; preds = %try.cont
invoke void @foo()
to label %try.cont10 unwind label %catch.dispatch5
catch.dispatch5: ; preds = %invoke.cont3, %try.cont
%num.1 = phi i32 [ 2, %invoke.cont3 ], [ 1, %try.cont ]
%6 = catchswitch within none [label %catch.start6] unwind to caller
; CHECK: catch.dispatch5:
; CHECK-NOT: = phi
catch.start6: ; preds = %catch.dispatch5
%7 = catchpad within %6 [i8* null]
%8 = call i8* @llvm.wasm.get.exception(token %7)
%9 = call i32 @llvm.wasm.get.ehselector(token %7)
%10 = call i8* @__cxa_begin_catch(i8* %8) [ "funclet"(token %7) ]
call void @func(i32 %num.1) [ "funclet"(token %7) ]
call void @__cxa_end_catch() [ "funclet"(token %7) ]
catchret from %7 to label %try.cont10
try.cont10: ; preds = %invoke.cont3, %catch.start6
ret void
}
declare void @foo()
declare void @func(i32)
declare %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* returned)
declare i32 @__gxx_wasm_personality_v0(...)
declare i8* @llvm.wasm.get.exception(token)
declare i32 @llvm.wasm.get.ehselector(token)
declare i32 @llvm.eh.typeid.for(i8*)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
declare void @__cxa_rethrow()
declare void @__clang_call_terminate(i8*)
; CHECK-DAG: declare i8* @llvm.wasm.catch(i32)
; CHECK-DAG: declare void @llvm.wasm.landingpad.index(i32)
; CHECK-DAG: declare i8* @llvm.wasm.lsda()
; CHECK-DAG: declare i32 @_Unwind_CallPersonality(i8*)
Reference in New Issue View Git Blame Copy Permalink