mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
561c44fc33
One code change and several test changes to match that details in http://reviews.llvm.org/D9481 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237150 91177308-0d34-0410-b5e6-96231b3b80d8
215 lines
7.7 KiB
LLVM
215 lines
7.7 KiB
LLVM
; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
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; This test was generated from the following code.
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;
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; void test1() {
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; try {
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; try {
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; throw 1;
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; } catch(...) { throw; }
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; } catch (...) { }
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; }
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; void test2() {
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; try {
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; throw 1;
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; } catch(...) {
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; try {
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; throw;
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; } catch (...) {}
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; }
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; }
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;
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; These two functions result in functionally equivalent code, but the last
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; catch block contains a call to llvm.eh.endcatch that tripped up processing
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; during development.
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;
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; The main purpose of this test is to verify that we can correctly
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; handle the case of nested landing pads that return directly to a block in
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; the parent function.
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; ModuleID = 'cppeh-nested-rethrow.cpp'
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc"
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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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%eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 }
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%eh.CatchableTypeArray.1 = type { i32, [1 x i32] }
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%eh.ThrowInfo = type { i32, i32, i32, i32 }
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$"\01??_R0H@8" = comdat any
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$"_CT??_R0H@84" = comdat any
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$_CTA1H = comdat any
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$_TI1H = comdat any
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@"\01??_7type_info@@6B@" = external constant i8*
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@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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@__ImageBase = external constant i8
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@"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat
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@_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0H@84" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat
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@_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1H to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat
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; CHECK-LABEL: define void @"\01?test1@@YAXXZ"()
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; CHECK: entry:
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; CHECK: call void (...) @llvm.frameescape
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; Function Attrs: nounwind uwtable
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define void @"\01?test1@@YAXXZ"() #0 {
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entry:
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%tmp = alloca i32, align 4
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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store i32 1, i32* %tmp
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%0 = bitcast i32* %tmp to i8*
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invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #2
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to label %unreachable unwind label %lpad
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lpad: ; preds = %entry
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%1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* null
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%2 = extractvalue { i8*, i32 } %1, 0
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store i8* %2, i8** %exn.slot
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%3 = extractvalue { i8*, i32 } %1, 1
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store i32 %3, i32* %ehselector.slot
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br label %catch
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catch: ; preds = %lpad
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%exn = load i8*, i8** %exn.slot
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call void @llvm.eh.begincatch(i8* %exn, i8* null) #1
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invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) #2
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to label %unreachable unwind label %lpad1
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lpad1: ; preds = %catch
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%4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* null
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%5 = extractvalue { i8*, i32 } %4, 0
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store i8* %5, i8** %exn.slot
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%6 = extractvalue { i8*, i32 } %4, 1
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store i32 %6, i32* %ehselector.slot
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br label %catch2
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catch2: ; preds = %lpad1
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%exn3 = load i8*, i8** %exn.slot
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call void @llvm.eh.begincatch(i8* %exn3, i8* null) #1
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call void @llvm.eh.endcatch() #1
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br label %try.cont.4
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; This block should not be eliminated.
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; CHECK: try.cont.4:
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try.cont.4: ; preds = %catch2, %try.cont
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ret void
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try.cont: ; No predecessors!
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br label %try.cont.4
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unreachable: ; preds = %catch, %entry
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unreachable
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; CHECK: }
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}
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declare void @_CxxThrowException(i8*, %eh.ThrowInfo*)
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind
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declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #1
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; Function Attrs: nounwind
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declare void @llvm.eh.endcatch() #1
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; CHECK-LABEL: define void @"\01?test2@@YAXXZ"()
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; CHECK: entry:
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; CHECK: call void (...) @llvm.frameescape
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; Function Attrs: nounwind uwtable
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define void @"\01?test2@@YAXXZ"() #0 {
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entry:
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%tmp = alloca i32, align 4
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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store i32 1, i32* %tmp
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%0 = bitcast i32* %tmp to i8*
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invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #2
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to label %unreachable unwind label %lpad
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lpad: ; preds = %entry
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%1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* null
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%2 = extractvalue { i8*, i32 } %1, 0
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store i8* %2, i8** %exn.slot
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%3 = extractvalue { i8*, i32 } %1, 1
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store i32 %3, i32* %ehselector.slot
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br label %catch
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catch: ; preds = %lpad
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%exn = load i8*, i8** %exn.slot
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call void @llvm.eh.begincatch(i8* %exn, i8* null) #1
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invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) #2
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to label %unreachable unwind label %lpad1
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lpad1: ; preds = %catch
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%4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* null
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%5 = extractvalue { i8*, i32 } %4, 0
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store i8* %5, i8** %exn.slot
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%6 = extractvalue { i8*, i32 } %4, 1
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store i32 %6, i32* %ehselector.slot
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br label %catch2
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catch2: ; preds = %lpad1
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%exn3 = load i8*, i8** %exn.slot
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call void @llvm.eh.begincatch(i8* %exn3, i8* null) #1
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call void @llvm.eh.endcatch() #1
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br label %try.cont
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; This block should not be eliminated.
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; CHECK: try.cont:
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; The endcatch call should be eliminated.
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; CHECK-NOT: call void @llvm.eh.endcatch()
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try.cont: ; preds = %catch2
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call void @llvm.eh.endcatch() #1
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br label %try.cont.4
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try.cont.4: ; preds = %try.cont
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ret void
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unreachable: ; preds = %catch, %entry
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unreachable
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; CHECK: }
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}
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; The outlined test1.catch handler should not contain a return instruction.
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; CHECK-LABEL: define internal i8* @"\01?test1@@YAXXZ.catch"(i8*, i8*)
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; CHECK-NOT: ret
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; CHECK: }
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; The outlined test1.catch1 handler should return to a valid block address.
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; CHECK-LABEL: define internal i8* @"\01?test1@@YAXXZ.catch.1"(i8*, i8*)
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; WILL-CHECK: ret i8* inttoptr (
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; CHECK-NOT: ret i8* inttoptr (i32 1 to i8*)
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; CHECK: }
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; The outlined test2.catch handler should not contain a return instruction.
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; CHECK-LABEL: define internal i8* @"\01?test2@@YAXXZ.catch"(i8*, i8*)
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; CHECK-NOT: ret
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; CHECK: }
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; The outlined test2.catch1 handler should return to a valid block address.
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; CHECK-LABEL: define internal i8* @"\01?test2@@YAXXZ.catch.2"(i8*, i8*)
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; WILL-CHECK: ret i8* inttoptr (
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; CHECK-NOT: ret i8* inttoptr (i32 1 to i8*)
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; CHECK: }
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind }
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attributes #2 = { noreturn }
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!llvm.module.flags = !{!0}
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!llvm.ident = !{!1}
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!0 = !{i32 1, !"PIC Level", i32 2}
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!1 = !{!"clang version 3.7.0 (trunk 236059)"}
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