forked from OSchip/llvm-project
175 lines
6.9 KiB
LLVM
175 lines
6.9 KiB
LLVM
; RUN: opt < %s -wasm-lower-em-ehsjlj -S | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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@_ZTIi = external constant i8*
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@_ZTIc = external constant i8*
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; CHECK-DAG: __THREW__ = external global i32
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; CHECK-DAG: __threwValue = external global i32
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; Test invoke instruction with clauses (try-catch block)
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define void @clause() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @clause(
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entry:
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invoke void @foo(i32 3)
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to label %invoke.cont unwind label %lpad
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; CHECK: entry:
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; CHECK-NEXT: store i32 0, i32* @__THREW__
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; CHECK-NEXT: call cc{{.*}} void @__invoke_void_i32(void (i32)* @foo, i32 3)
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; CHECK-NEXT: %[[__THREW__VAL:.*]] = load i32, i32* @__THREW__
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; CHECK-NEXT: store i32 0, i32* @__THREW__
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; CHECK-NEXT: %cmp = icmp eq i32 %[[__THREW__VAL]], 1
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; CHECK-NEXT: br i1 %cmp, label %lpad, label %invoke.cont
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invoke.cont: ; preds = %entry
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br label %try.cont
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @_ZTIi to i8*)
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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%2 = extractvalue { i8*, i32 } %0, 1
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br label %catch.dispatch
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; CHECK: lpad:
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; CHECK-NEXT: %[[FMC:.*]] = call i8* @__cxa_find_matching_catch_4(i8* bitcast (i8** @_ZTIi to i8*), i8* null)
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; CHECK-NEXT: %[[IVI1:.*]] = insertvalue { i8*, i32 } undef, i8* %[[FMC]], 0
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; CHECK-NEXT: %[[TEMPRET0_VAL:.*]] = call i32 @getTempRet0()
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; CHECK-NEXT: %[[IVI2:.*]] = insertvalue { i8*, i32 } %[[IVI1]], i32 %[[TEMPRET0_VAL]], 1
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; CHECK-NEXT: extractvalue { i8*, i32 } %[[IVI2]], 0
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; CHECK-NEXT: %[[CDR:.*]] = extractvalue { i8*, i32 } %[[IVI2]], 1
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catch.dispatch: ; preds = %lpad
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%3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %2, %3
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br i1 %matches, label %catch1, label %catch
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; CHECK: catch.dispatch:
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; CHECK-NEXT: %[[TYPEID:.*]] = call i32 @llvm_eh_typeid_for(i8* bitcast (i8** @_ZTIi to i8*))
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; CHECK-NEXT: %matches = icmp eq i32 %[[CDR]], %[[TYPEID]]
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catch1: ; preds = %catch.dispatch
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%4 = call i8* @__cxa_begin_catch(i8* %1)
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%5 = bitcast i8* %4 to i32*
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%6 = load i32, i32* %5, align 4
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call void @__cxa_end_catch()
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br label %try.cont
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try.cont: ; preds = %catch, %catch1, %invoke.cont
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ret void
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catch: ; preds = %catch.dispatch
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%7 = call i8* @__cxa_begin_catch(i8* %1)
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call void @__cxa_end_catch()
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br label %try.cont
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}
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; Test invoke instruction with filters (functions with throw(...) declaration)
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define void @filter() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @filter(
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entry:
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invoke void @foo(i32 3)
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to label %invoke.cont unwind label %lpad
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; CHECK: entry:
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; CHECK-NEXT: store i32 0, i32* @__THREW__
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; CHECK-NEXT: call cc{{.*}} void @__invoke_void_i32(void (i32)* @foo, i32 3)
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; CHECK-NEXT: %[[__THREW__VAL:.*]] = load i32, i32* @__THREW__
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; CHECK-NEXT: store i32 0, i32* @__THREW__
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; CHECK-NEXT: %cmp = icmp eq i32 %[[__THREW__VAL]], 1
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; CHECK-NEXT: br i1 %cmp, label %lpad, label %invoke.cont
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invoke.cont: ; preds = %entry
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ret void
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 }
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filter [2 x i8*] [i8* bitcast (i8** @_ZTIi to i8*), i8* bitcast (i8** @_ZTIc to i8*)]
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%1 = extractvalue { i8*, i32 } %0, 0
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%2 = extractvalue { i8*, i32 } %0, 1
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br label %filter.dispatch
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; CHECK: lpad:
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; CHECK-NEXT: %[[FMC:.*]] = call i8* @__cxa_find_matching_catch_4(i8* bitcast (i8** @_ZTIi to i8*), i8* bitcast (i8** @_ZTIc to i8*))
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; CHECK-NEXT: %[[IVI1:.*]] = insertvalue { i8*, i32 } undef, i8* %[[FMC]], 0
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; CHECK-NEXT: %[[TEMPRET0_VAL:.*]] = call i32 @getTempRet0()
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; CHECK-NEXT: %[[IVI2:.*]] = insertvalue { i8*, i32 } %[[IVI1]], i32 %[[TEMPRET0_VAL]], 1
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; CHECK-NEXT: extractvalue { i8*, i32 } %[[IVI2]], 0
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; CHECK-NEXT: extractvalue { i8*, i32 } %[[IVI2]], 1
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filter.dispatch: ; preds = %lpad
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%ehspec.fails = icmp slt i32 %2, 0
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br i1 %ehspec.fails, label %ehspec.unexpected, label %eh.resume
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ehspec.unexpected: ; preds = %filter.dispatch
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call void @__cxa_call_unexpected(i8* %1) #4
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unreachable
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eh.resume: ; preds = %filter.dispatch
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%lpad.val = insertvalue { i8*, i32 } undef, i8* %1, 0
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%lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %2, 1
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resume { i8*, i32 } %lpad.val3
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; CHECK: eh.resume:
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; CHECK-NEXT: insertvalue
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; CHECK-NEXT: %[[LPAD_VAL:.*]] = insertvalue
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; CHECK-NEXT: %[[LOW:.*]] = extractvalue { i8*, i32 } %[[LPAD_VAL]], 0
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; CHECK-NEXT: call void @__resumeException(i8* %[[LOW]])
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; CHECK-NEXT: unreachable
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}
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; Test if argument attributes indices in newly created call instructions are correct
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define void @arg_attributes() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; CHECK-LABEL: @arg_attributes(
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entry:
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%0 = invoke noalias i8* @bar(i8 signext 1, i8 zeroext 2)
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to label %invoke.cont unwind label %lpad
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; CHECK: entry:
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; CHECK-NEXT: store i32 0, i32* @__THREW__
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; CHECK-NEXT: %0 = call cc{{.*}} noalias i8* @"__invoke_i8*_i8_i8"(i8* (i8, i8)* @bar, i8 signext 1, i8 zeroext 2)
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invoke.cont: ; preds = %entry
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br label %try.cont
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lpad: ; preds = %entry
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%1 = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @_ZTIi to i8*)
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catch i8* null
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%2 = extractvalue { i8*, i32 } %1, 0
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%3 = extractvalue { i8*, i32 } %1, 1
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br label %catch.dispatch
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catch.dispatch: ; preds = %lpad
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%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %3, %4
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br i1 %matches, label %catch1, label %catch
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catch1: ; preds = %catch.dispatch
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%5 = call i8* @__cxa_begin_catch(i8* %2)
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%6 = bitcast i8* %5 to i32*
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%7 = load i32, i32* %6, align 4
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call void @__cxa_end_catch()
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br label %try.cont
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try.cont: ; preds = %catch, %catch1, %invoke.cont
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ret void
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catch: ; preds = %catch.dispatch
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%8 = call i8* @__cxa_begin_catch(i8* %2)
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call void @__cxa_end_catch()
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br label %try.cont
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}
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declare void @foo(i32)
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declare i8* @bar(i8, i8)
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declare i32 @__gxx_personality_v0(...)
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declare i32 @llvm.eh.typeid.for(i8*)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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declare void @__cxa_call_unexpected(i8*)
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; JS glue functions and invoke wrappers declaration
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; CHECK-DAG: declare i32 @getTempRet0()
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; CHECK-DAG: declare void @setTempRet0(i32)
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; CHECK-DAG: declare void @__resumeException(i8*)
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; CHECK-DAG: declare void @__invoke_void_i32(void (i32)*, i32)
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; CHECK-DAG: declare i8* @__cxa_find_matching_catch_4(i8*, i8*)
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