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2010-06-28Partial fix for PR7267 based on comments by John McCall on an earlier patch.Chandler Carruth
This is more targeted, as it simply provides toggle actions for the parser to turn access checking on and off. We then use these to suppress access checking only while we parse the template-id (included scope specifier) of an explicit instantiation and explicit specialization of a class template. The specialization behavior is an extension, as it seems likely a defect that the standard did not exempt them as it does explicit instantiations. This allows the very common practice of specializing trait classes to work for private, internal types. This doesn't address instantiating or specializing function templates, although those apparently already partially work. The naming and style for the Action layer isn't my favorite, comments and suggestions would be appreciated there. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106993 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28Pointer comparisons (and pointer-pointer subtraction). Basically filling in ↵Jordy Rose
SimpleSValuator::EvalBinOpLL(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106992 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28Suppress diagnosing access violations while looking up deallocation functionsChandler Carruth
much as we already do for allocation function lookup. Explicitly check access for the function we actually select in one case that was previously missing, but being caught behind the blanket diagnostics for all overload candidates. This fixs PR7436. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106986 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Use softfp for linux gnueabi, keep the warning for everything else.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Correctly destroy reference temporaries with global storage. Remove ↵Anders Carlsson
ErrorUnsupported call when binding a global reference to a non-lvalue. Fixes PR7326. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106983 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Add a CreateReferenceTemporary that will do the right thing for variables ↵Anders Carlsson
with global storage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106982 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Simplify CodeGenFunction::EmitReferenceBindingToExpr as a first step towards ↵Anders Carlsson
fixing PR7326. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106981 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Reduce indentation.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27misc tidyingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106978 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27finally get around to doing a significant cleanup to irgen:Chris Lattner
have CGF create and make accessible standard int32,int64 and intptr types. This fixes a ton of 80 column violations introduced by LLVMContextification and cleans up stuff a lot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27tidy up OrderGlobalInitsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27If coercing something from int or pointer type to int or pointer typeChris Lattner
(potentially after unwrapping it from a struct) do it without going through memory. We now compile: struct DeclGroup { unsigned NumDecls; }; int foo(DeclGroup D) { return D.NumDecls; } into: %struct.DeclGroup = type { i32 } define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone { entry: %D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] %coerce.val.ii = trunc i64 %0 to i32 ; <i32> [#uses=1] store i32 %coerce.val.ii, i32* %coerce.dive %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] %tmp1 = load i32* %tmp ; <i32> [#uses=1] ret i32 %tmp1 } instead of: %struct.DeclGroup = type { i32 } define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone { entry: %D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %tmp = alloca i64 ; <i64*> [#uses=2] %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] store i64 %0, i64* %tmp %1 = bitcast i64* %tmp to i32* ; <i32*> [#uses=1] %2 = load i32* %1, align 1 ; <i32> [#uses=1] store i32 %2, i32* %coerce.dive %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] %tmp2 = load i32* %tmp1 ; <i32> [#uses=1] ret i32 %tmp2 } ... which is quite a bit less terrifying. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Same patch as the previous on the store side. Before we compiled this:Chris Lattner
struct DeclGroup { unsigned NumDecls; }; int foo(DeclGroup D) { return D.NumDecls; } to: %struct.DeclGroup = type { i32 } define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone { entry: %D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %tmp = alloca i64 ; <i64*> [#uses=2] store i64 %0, i64* %tmp %1 = bitcast i64* %tmp to %struct.DeclGroup* ; <%struct.DeclGroup*> [#uses=1] %2 = load %struct.DeclGroup* %1, align 1 ; <%struct.DeclGroup> [#uses=1] store %struct.DeclGroup %2, %struct.DeclGroup* %D %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] %tmp2 = load i32* %tmp1 ; <i32> [#uses=1] ret i32 %tmp2 } which caused fast isel bailouts due to the FCA load/store of %2. Now we generate this just blissful code: %struct.DeclGroup = type { i32 } define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone { entry: %D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %tmp = alloca i64 ; <i64*> [#uses=2] %coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] store i64 %0, i64* %tmp %1 = bitcast i64* %tmp to i32* ; <i32*> [#uses=1] %2 = load i32* %1, align 1 ; <i32> [#uses=1] store i32 %2, i32* %coerce.dive %tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1] %tmp2 = load i32* %tmp1 ; <i32> [#uses=1] ret i32 %tmp2 } This avoids fastisel bailing out and is groundwork for future patch. This reduces bailouts on CGStmt.ll to 911 from 935. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27improve CreateCoercedLoad a bit to generate slightly less awfulChris Lattner
IR when handling X86-64 by-value struct stuff. For example, we use to compile this: struct DeclGroup { unsigned NumDecls; }; int foo(DeclGroup D); void bar(DeclGroup *D) { foo(*D); } into: define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) ssp nounwind { entry: %D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2] %agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %tmp3 = alloca i64 ; <i64*> [#uses=2] store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr %tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1] %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1] %tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1] call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false) %0 = bitcast i64* %tmp3 to %struct.DeclGroup* ; <%struct.DeclGroup*> [#uses=1] %1 = load %struct.DeclGroup* %agg.tmp ; <%struct.DeclGroup> [#uses=1] store %struct.DeclGroup %1, %struct.DeclGroup* %0, align 1 %2 = load i64* %tmp3 ; <i64> [#uses=1] call void @_Z3foo9DeclGroup(i64 %2) ret void } which would cause fastisel to bail out due to the first class aggregate load %1. With this patch we now compile it into the (still awful): define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind ssp noredzone { entry: %D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2] %agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2] %tmp3 = alloca i64 ; <i64*> [#uses=2] store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr %tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1] %tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1] %tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1] call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false) %coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <i32*> [#uses=1] %0 = bitcast i64* %tmp3 to i32* ; <i32*> [#uses=1] %1 = load i32* %coerce.dive ; <i32> [#uses=1] store i32 %1, i32* %0, align 1 %2 = load i64* %tmp3 ; <i64> [#uses=1] %call = call i32 @_Z3foo9DeclGroup(i64 %2) noredzone ; <i32> [#uses=0] ret void } which doesn't bail out. On CGStmt.ll, this reduces fastisel bail outs from 958 to 935, and is the precursor of better things to come. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Implicitly compare symbolic expressions to zero when they're being used as ↵Jordy Rose
constraints. Part of PR7491. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106972 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27Change IR generation for return (in the simple case) to avoid doing sillyChris Lattner
load/store nonsense in the epilog. For example, for: int foo(int X) { int A[100]; return A[X]; } we used to generate: %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1] %tmp1 = load i32* %arrayidx ; <i32> [#uses=1] store i32 %tmp1, i32* %retval %0 = load i32* %retval ; <i32> [#uses=1] ret i32 %0 } which codegen'd to this code: _foo: ## @foo ## BB#0: ## %entry subq $408, %rsp ## imm = 0x198 movl %edi, 400(%rsp) movl 400(%rsp), %edi movslq %edi, %rax movl (%rsp,%rax,4), %edi movl %edi, 404(%rsp) movl 404(%rsp), %eax addq $408, %rsp ## imm = 0x198 ret Now we generate: %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1] %tmp1 = load i32* %arrayidx ; <i32> [#uses=1] ret i32 %tmp1 } and: _foo: ## @foo ## BB#0: ## %entry subq $408, %rsp ## imm = 0x198 movl %edi, 404(%rsp) movl 404(%rsp), %edi movslq %edi, %rax movl (%rsp,%rax,4), %eax addq $408, %rsp ## imm = 0x198 ret This actually does matter, cutting out 2000 lines of IR from CGStmt.ll for example. Another interesting effect is that altivec.h functions which are dead now get dce'd by the inliner. Hence all the changes to builtins-ppc-altivec.c to ensure the calls aren't dead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106970 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26reduce indentationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106967 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Implement rdar://7530813 - collapse multiple GEP instructions in IRgenChris Lattner
This avoids generating two gep's for common array operations. Before we would generate something like: %tmp = load i32* %X.addr ; <i32> [#uses=1] %arraydecay = getelementptr inbounds [100 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1] %arrayidx = getelementptr inbounds i32* %arraydecay, i32 %tmp ; <i32*> [#uses=1] %tmp1 = load i32* %arrayidx ; <i32> [#uses=1] Now we generate: %tmp = load i32* %X.addr ; <i32> [#uses=1] %arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i32 %tmp ; <i32*> [#uses=1] %tmp1 = load i32* %arrayidx ; <i32> [#uses=1] Less IR is better at -O0. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106966 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Allow '__extension__' to be analyzed in a lvalue context.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26minor cleanup: don't emit the base of an array subscript until after Chris Lattner
we're done diddling around with the index stuff. Use a cheaper type comparison. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26fix inc/dec to honor -fwrapv and -ftrapv, implementing PR7426.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26move scalar inc/dec codegen into ScalarExprEmitter instead Chris Lattner
of being in CGF. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106961 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26use more efficient type comparison predicates.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Fix unary minus to trap on overflow with -ftrapv, refactoring binopChris Lattner
code so we can use it from VisitUnaryMinus. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106957 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Implement support for -fwrapv, rdar://7221421Chris Lattner
As part of this, pull together trapv handling into the same enum. This also add support for NSW multiplies. This also makes PCH disagreement on overflow behavior silent, since it really doesn't matter except for warnings and codegen (no macros get defined etc). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106956 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26implement rdar://7432000 - signed negate should codegen as NSW.Chris Lattner
While I'm in there, adjust pointer to member adjustments as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106955 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Implement support for #pragma message, patch by Michael Spencer!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106950 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Change EmitReferenceBindingToExpr to take a decl instead of a boolean.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106949 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Add function for mangling reference temporaries.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Mangle pointer and (lvalue) reference types in the Microsoft C++ Mangler.Charles Davis
Also, fix mangling of throw specs. Turns out MSVC totally ignores throw specs when mangling names. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106937 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Add a missing dependency to try to fix a buildbot failure.Bob Wilson
It complained with: llvm[5]: Building Clang arm_neon.h.inc with tblgen cp: cannot create regular file `/build/buildbot-llvm/clang-x86_64-linux-selfhost-rel/llvm.obj.2/Release/lib/clang/2.0/include/arm_neon.h': No such file or directory git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106922 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Relax assertion since non-pod C++ classes are not aggregates, but still can ↵Ted Kremenek
appear in this context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106919 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25When a constant size array is casted to another type, its length should be ↵Jordy Rose
scaled as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Use TypeSourceInfo to help determine the SourceRange of a CXXNewExpr. This ↵Ted Kremenek
fixes several cases where we generated an invalid SourceRange for this expression. Thanks to John McCall for helping me figure this out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106903 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Add "checker caching" to GRExprEngine::CheckerVisit to progressively buildTed Kremenek
a winowed list of checkers that actually do something for a given StmtClass. As the number of checkers grows, this may potentially significantly reduce the number of checkers called at any one time. My own measurements show that for the ~20 registered Checker objects, only ~5 of them respond at any one time to a give statement. While this isn't a net performance win right now (there is a minor slowdown on sqlite.3) this improvement does greatly improve debugging when stepping through the checkers used to evaluate a given statement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106884 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Fix -analyze-display-progress (once again), this time with an additional ↵Ted Kremenek
regression test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Minor change to my last patch to fix PR7490.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106875 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Translate numbers properly.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106873 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25IRGen for trivial initialization of dynamiccaly allocatedFariborz Jahanian
array of other done c++ objects. Fixes PR7490. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Change RegionStoreManager::Retrieve to infer the type of a symbolic region ↵Tom Care
from the context when it is not already available. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106868 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25build: Get CLANG_VERSION from Version.inc instead of depending on VER file ↵Daniel Dunbar
directly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Support NonTypeTemplateParmDecl for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Make PCHWriter::FlushStmts() robust. If we added null Stmts, reading them ↵Argyrios Kyrtzidis
back got messed up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106859 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Support DependentTemplateSpecializationType and ElaboratedType for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106858 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Add forgotten breaks in case statements.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106857 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Support UnresolvedLookupExpr for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106832 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Support UnresolvedMemberExpr for PCH.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Print source location when we encounter unhandled statement during PCH writing.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Implement dependent alignment attribute support. This is a bit gross given theChandler Carruth
current attribute system, but it is enough to handle class templates which specify parts of their alignment in terms of their template parameters. This also replaces the attributes test in SemaTemplate with one that actually tests working attributes instead of broken ones. I plan to add more tests here for non-dependent attributes in a subsequent patch. Thanks to John for walking me through some of this. =D git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-25Add comment for my last patch.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106813 91177308-0d34-0410-b5e6-96231b3b80d8
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