mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
45072b933e
Summary: Initially, these intrinsics seemed like part of a family of "frame" related intrinsics, but now I think that's more confusing than helpful. Initially, the LangRef specified that this would create a new kind of allocation that would be allocated at a fixed offset from the frame pointer (EBP/RBP). We ended up dropping that design, and leaving the stack frame layout alone. These intrinsics are really about sharing local stack allocations, not frame pointers. I intend to go further and add an `llvm.localaddress()` intrinsic that returns whatever register (EBP, ESI, ESP, RBX) is being used to address locals, which should not be confused with the frame pointer. Naming suggestions at this point are welcome, I'm happy to re-run sed. Reviewers: majnemer, nicholas Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D11011 llvm-svn: 241633
290 lines
12 KiB
LLVM
290 lines
12 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; This test was generated from the following code.
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;
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; void test() {
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; try {
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; try {
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; try {
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; two();
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; throw 2;
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; } catch (int x) {
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; catch_two();
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; }
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; a();
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; throw 'a';
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; } catch (char c) {
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; catch_a();
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; }
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; one();
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; throw 1;
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; } catch(int x) {
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; catch_one();
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; } catch(...) {
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; catch_all();
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; }
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; }
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;
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; The function calls before the throws were declared as 'noexcept' and are
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; just here to make blocks easier to identify in the IR.
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; ModuleID = '<stdin>'
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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.CatchHandlerType = type { i32, 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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$"\01??_R0H@8" = comdat any
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$"\01??_R0D@8" = comdat any
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$"_CT??_R0H@84" = comdat any
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$_CTA1H = comdat any
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$_TI1H = comdat any
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$"_CT??_R0D@81" = comdat any
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$_CTA1D = comdat any
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$_TI1D = 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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@llvm.eh.handlertype.H.0 = private unnamed_addr constant %eh.CatchHandlerType { i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) }, section "llvm.metadata"
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@"\01??_R0D@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".D\00" }, comdat
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@llvm.eh.handlertype.D.0 = private unnamed_addr constant %eh.CatchHandlerType { i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0D@8" to i8*) }, section "llvm.metadata"
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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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@"_CT??_R0D@81" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0D@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 1, i32 0 }, section ".xdata", comdat
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@_CTA1D = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0D@81" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat
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@_TI1D = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1D to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat
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; Function Attrs: nounwind uwtable
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define void @"\01?test@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%tmp = alloca i32, align 4
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%x = alloca i32, align 4
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%tmp2 = alloca i8, align 1
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%c = alloca i8, align 1
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%tmp11 = alloca i32, align 4
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%x21 = alloca i32, align 4
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call void @"\01?two@@YAXXZ"() #3
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store i32 2, i32* %tmp
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%0 = bitcast i32* %tmp to i8*
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call void (...) @llvm.localescape(i32* %x, i8* %c, i32* %x21)
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invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #5
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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 }
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catch i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*)
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catch %eh.CatchHandlerType* @llvm.eh.handlertype.D.0
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catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0
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catch i8* null
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%recover = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch", i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.D.0 to i8*), i32 1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3")
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indirectbr i8* %recover, [label %try.cont, label %try.cont10, label %try.cont22]
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try.cont: ; preds = %lpad
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call void @"\01?a@@YAXXZ"() #3
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store i8 97, i8* %tmp2
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invoke void @_CxxThrowException(i8* %tmp2, %eh.ThrowInfo* @_TI1D) #5
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to label %unreachable unwind label %lpad3
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lpad3: ; preds = %try.cont
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%2 = landingpad { i8*, i32 }
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catch %eh.CatchHandlerType* @llvm.eh.handlertype.D.0
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catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0
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catch i8* null
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%recover1 = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.D.0 to i8*), i32 1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3")
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indirectbr i8* %recover1, [label %try.cont10, label %try.cont22]
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try.cont10: ; preds = %lpad3, %lpad
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call void @"\01?one@@YAXXZ"() #3
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store i32 1, i32* %tmp11
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%3 = bitcast i32* %tmp11 to i8*
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invoke void @_CxxThrowException(i8* %3, %eh.ThrowInfo* @_TI1H) #5
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to label %unreachable unwind label %lpad12
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lpad12: ; preds = %try.cont10
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%4 = landingpad { i8*, i32 }
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catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0
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catch i8* null
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%recover2 = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3")
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indirectbr i8* %recover2, [label %try.cont22]
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try.cont22: ; preds = %lpad12, %lpad3, %lpad
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ret void
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unreachable: ; preds = %try.cont10, %try.cont, %entry
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unreachable
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}
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; Function Attrs: nounwind
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declare void @"\01?two@@YAXXZ"() #1
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declare void @_CxxThrowException(i8*, %eh.ThrowInfo*)
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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*) #2
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; Function Attrs: nounwind
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declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3
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; Function Attrs: nounwind
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declare void @"\01?catch_two@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @llvm.eh.endcatch() #3
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; Function Attrs: nounwind
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declare void @"\01?a@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @"\01?catch_a@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @"\01?one@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @"\01?catch_all@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @"\01?catch_one@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare i8* @llvm.eh.actions(...) #3
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define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) #4 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%x.i8 = call i8* @llvm.localrecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0)
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%x = bitcast i8* %x.i8 to i32*
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%2 = bitcast i32* %x to i8*
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call void @"\01?catch_two@@YAXXZ"() #3
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invoke void @llvm.donothing()
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to label %entry.split unwind label %stub
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entry.split: ; preds = %entry
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ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont)
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stub: ; preds = %entry
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%3 = landingpad { i8*, i32 }
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cleanup
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%recover = call i8* (...) @llvm.eh.actions()
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unreachable
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.donothing() #2
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define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*) #4 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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call void @"\01?catch_a@@YAXXZ"() #3
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invoke void @llvm.donothing()
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to label %entry.split unwind label %stub
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entry.split: ; preds = %entry
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ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont10)
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stub: ; preds = %entry
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%2 = landingpad { i8*, i32 }
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cleanup
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%recover = call i8* (...) @llvm.eh.actions()
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unreachable
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}
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define internal i8* @"\01?test@@YAXXZ.catch2"(i8*, i8*) #4 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%x21.i8 = call i8* @llvm.localrecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2)
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%x21 = bitcast i8* %x21.i8 to i32*
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%2 = bitcast i32* %x21 to i8*
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call void @"\01?catch_one@@YAXXZ"() #3
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invoke void @llvm.donothing()
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to label %entry.split unwind label %stub
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entry.split: ; preds = %entry
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ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont22)
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stub: ; preds = %entry
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%3 = landingpad { i8*, i32 }
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cleanup
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%recover = call i8* (...) @llvm.eh.actions()
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unreachable
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}
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define internal i8* @"\01?test@@YAXXZ.catch3"(i8*, i8*) #4 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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call void @"\01?catch_all@@YAXXZ"() #3
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invoke void @llvm.donothing()
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to label %entry.split unwind label %stub
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entry.split: ; preds = %entry
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ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont22)
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stub: ; preds = %entry
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%2 = landingpad { i8*, i32 }
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cleanup
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%recover = call i8* (...) @llvm.eh.actions()
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unreachable
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}
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; Function Attrs: nounwind
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declare void @llvm.localescape(...) #3
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; Function Attrs: nounwind readnone
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declare i8* @llvm.localrecover(i8*, i8*, i32) #2
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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" "wineh-parent"="?test@@YAXXZ" }
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attributes #1 = { nounwind "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 #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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attributes #4 = { "wineh-parent"="?test@@YAXXZ" }
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attributes #5 = { 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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; CHECK-LABEL: "$cppxdata$?test@@YAXXZ":
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; CHECK-NEXT: .long 429065506
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; CHECK-NEXT: .long
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; CHECK-NEXT: .long ("$stateUnwindMap$?test@@YAXXZ")@IMGREL
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; CHECK-NEXT: .long
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; CHECK-NEXT: .long ("$tryMap$?test@@YAXXZ")@IMGREL
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; CHECK-NEXT: .long
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; CHECK-NEXT: .long ("$ip2state$?test@@YAXXZ")@IMGREL
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; CHECK-NEXT: .long 40
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 1
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; CHECK: "$stateUnwindMap$?test@@YAXXZ":
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; CHECK: "$tryMap$?test@@YAXXZ":
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; CHECK: "$handlerMap$0$?test@@YAXXZ":
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; CHECK: "$ip2state$?test@@YAXXZ":
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; CHECK-NEXT: .long .Lfunc_begin0@IMGREL
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; CHECK-NEXT: .long -1
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; CHECK-NEXT: .long .Ltmp0@IMGREL
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; CHECK-NEXT: .long 2
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; CHECK-NEXT: .long .Ltmp3@IMGREL
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long .Ltmp6@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long .Lfunc_begin1@IMGREL
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; CHECK-NEXT: .long 3
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; CHECK-NEXT: .long .Lfunc_begin2@IMGREL
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; CHECK-NEXT: .long 4
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; CHECK-NEXT: .long .Lfunc_begin3@IMGREL
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; CHECK-NEXT: .long 5
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; CHECK-NEXT: .long .Lfunc_begin4@IMGREL
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; CHECK-NEXT: .long 6
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