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path: root/lib/CodeGen/CGCall.cpp
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2010-07-20Use getDebugLoc and setDebugLoc instead of getDbgMetadata and setDbgMetadata,Dan Gohman
avoiding MDNode overhead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108911 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-14CodeGen/ObjC/NeXT: Fix Obj-C message send to match llvm-gcc when choosingDaniel Dunbar
whether to use objc_msgSend_fpret; the choice is target dependent, not Obj-C ABI dependent. - <rdar://problem/8139758> arm objc _objc_msgSend_fpret bug git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08Mark calls to 'throw()' functions as nounwind, and mark the functions nounwindJohn McCall
as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107858 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Validated by nightly-test runs on x86 and x86-64 darwin, including afterJohn McCall
self-host. Hopefully these results hold up on different platforms. I tried to keep the GNU ObjC runtime happy, but it's hard for me to test. Reimplement how clang generates IR for exceptions. Instead of creating new invoke destinations which sequentially chain to the previous destination, push a more semantic representation of *why* we need the cleanup/catch/filter behavior, then collect that information into a single landing pad upon request. Also reorganizes how normal cleanups (i.e. cleanups triggered by non-exceptional control flow) are generated, since it's actually fairly closely tied in with the former. Remove the need to track which cleanup scope a block is associated with. Document a lot of previously poorly-understood (by me, at least) behavior. The new framework implements the Horrible Hack (tm), which requires every landing pad to have a catch-all so that inlining will work. Clang no longer requires the Horrible Hack just to make exceptions flow correctly within a function, however. The HH is an unfortunate requirement of LLVM's EH IR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107631 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-05Generate fewer first class aggregate values for otherChris Lattner
coerce cases (e.g. {double,int}) which avoids fastisel bailing out at -O0. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-05in the "coerce" case, the ABI handling code ends up making theChris Lattner
alloca for an argument. Make sure the argument gets the proper decl alignment, which may be different than the type alignment. This fixes PR7567 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107627 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01fix rdar://8147692 - yet another crash due to my abi work.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30IRgen: Fix debug info regression in r106970; when we eliminate the return valueDaniel Dunbar
store make sure to move the debug metadata from the store (which is actual 'return' statement location) to the return instruction (which otherwise would have the function end location as its debug info). - Tested by gdb test suite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107322 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Reapply:Chris Lattner
r107173, "fix PR7519: after thrashing around and remembering how all this stuff" r107216, "fix PR7523, which was caused by the ABI code calling ConvertType instead" This includes a fix to make ConvertTypeForMem handle the "recursive" case, and call it as such when lowering function types which have an indirect result. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Revert r107173, "fix PR7519: after thrashing around and remembering how all ↵Daniel Dunbar
this stuff", it broke bootstrap. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107232 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Revert r107216, "fix PR7523, which was caused by the ABI code calling ↵Daniel Dunbar
ConvertType instead", it is part of a boostrap breaking sequence. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107231 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29fix PR7523, which was caused by the ABI code calling ConvertType insteadChris Lattner
of ConvertTypeRecursive when it needed to in a few cases, causing pointer types to get resolved at the wrong time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29relax the CGFunctionInfo::CGFunctionInfo ctor to allow any sequence Chris Lattner
of CanQualTypes to be passed in. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107176 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29fix PR7519: after thrashing around and remembering how all this stuffChris Lattner
works, the fix is quite simple: just make sure to call ConvertTypeRecursive when the function type being lowered is in the midst of ConvertType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107173 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29minor cleanups.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107150 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Pass the LLVM IR version of argument types down into computeInfo.Chris Lattner
This is somewhat annoying to do this at this level, but it avoids having ABIInfo know depend on CodeGenTypes for a hint. Nothing is using this yet, so no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29add IR names to coerced arguments.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107105 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29make the argument passing stuff in the FCA case smarter still, byChris Lattner
avoiding making the FCA at all when the types exactly line up. For example, before we made: %struct.DeclGroup = type { i64, i64 } define i64 @_Z3foo9DeclGroup(i64, i64) nounwind { entry: %D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3] %2 = insertvalue %struct.DeclGroup undef, i64 %0, 0 ; <%struct.DeclGroup> [#uses=1] %3 = insertvalue %struct.DeclGroup %2, i64 %1, 1 ; <%struct.DeclGroup> [#uses=1] store %struct.DeclGroup %3, %struct.DeclGroup* %D %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] %tmp1 = load i64* %tmp ; <i64> [#uses=1] %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1] %tmp3 = load i64* %tmp2 ; <i64> [#uses=1] %add = add nsw i64 %tmp1, %tmp3 ; <i64> [#uses=1] ret i64 %add } ... which has the pointless insertvalue, which fastisel hates, now we make: %struct.DeclGroup = type { i64, i64 } define i64 @_Z3foo9DeclGroup(i64, i64) nounwind { entry: %D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=4] %2 = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] store i64 %0, i64* %2 %3 = getelementptr %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1] store i64 %1, i64* %3 %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] %tmp1 = load i64* %tmp ; <i64> [#uses=1] %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1] %tmp3 = load i64* %tmp2 ; <i64> [#uses=1] %add = add nsw i64 %tmp1, %tmp3 ; <i64> [#uses=1] ret i64 %add } This only kicks in when x86-64 abi lowering decides it likes us. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28Change CGCall to handle the "coerce" case where the coerce-to typeChris Lattner
is a FCA to pass each of the elements as individual scalars. This produces code fast isel is less likely to reject and is easier on the optimizers. For example, before we would compile: struct DeclGroup { long NumDecls; char * Y; }; char * foo(DeclGroup D) { return D.NumDecls+D.Y; } to: %struct.DeclGroup = type { i64, i64 } define i64 @_Z3foo9DeclGroup(%struct.DeclGroup) nounwind { entry: %D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3] store %struct.DeclGroup %0, %struct.DeclGroup* %D, align 1 %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] %tmp1 = load i64* %tmp ; <i64> [#uses=1] %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1] %tmp3 = load i64* %tmp2 ; <i64> [#uses=1] %add = add nsw i64 %tmp1, %tmp3 ; <i64> [#uses=1] ret i64 %add } Now we get: %0 = type { i64, i64 } %struct.DeclGroup = type { i64, i8* } define i8* @_Z3foo9DeclGroup(i64, i64) nounwind { entry: %D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3] %2 = insertvalue %0 undef, i64 %0, 0 ; <%0> [#uses=1] %3 = insertvalue %0 %2, i64 %1, 1 ; <%0> [#uses=1] %4 = bitcast %struct.DeclGroup* %D to %0* ; <%0*> [#uses=1] store %0 %3, %0* %4, align 1 %tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1] %tmp1 = load i64* %tmp ; <i64> [#uses=1] %tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1] %tmp3 = load i8** %tmp2 ; <i8*> [#uses=1] %add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1] ret i8* %add.ptr } Elimination of the FCA inside the function is still-to-come. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107099 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-28make the trivial forms of CreateCoerced{Load|Store} trivial.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107091 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
2010-06-27If 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
2010-06-27Change 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
2010-06-26Change 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
2010-06-15Move CodeGenOptions.h *back* into Frontend. This should have been done when theChandler Carruth
dependency edge was reversed such that CodeGen depends on Frontend. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106065 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30Fix for PR7040: Don't try to compute the LLVM type for a function where itEli Friedman
isn't possible to compute. This patch is mostly refactoring; the key change is the addition of the code starting with the comment, "Check whether the function has a computable LLVM signature." The solution here is essentially the same as the way the vtable code handles such functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105151 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26Correctly pass aggregates by reference when emitting thunks.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104778 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-18Add support for Microsoft's __thiscall, from Steven Watanabe!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104026 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-02As per Chris' request, return the Instruction from EmitCall and add the ↵David Chisnall
metadata in the caller. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102862 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-01Tweaked EmitCall() to permit the caller to provide some metadata to attach ↵David Chisnall
to the call site. Used this in CGObjCGNU to attach metadata about message sends to permit speculative inlining. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102833 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20don't slap noalias attribute on stret result arguments.Chris Lattner
This mirror's Dan's patch for llvm-gcc in r97989, and fixes the miscompilation in PR6525. There is some contention over whether this is the right thing to do, but it is the conservative answer and demonstrably fixes a miscompilation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101877 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Vtable -> VTable renames across the board.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Remember the regparm attribute in FunctionType::ExtInfo.Rafael Espindola
Fixes PR3782. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99940 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30the big refactoring bits of PR3782.Rafael Espindola
This introduces FunctionType::ExtInfo to hold the calling convention and the noreturn attribute. The next patch will extend it to include the regparm attribute and fix the bug. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99920 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27When mapping restrict to noalias, look for 'restrict' on the parameter variableJohn McCall
instead of the canonical parameter type (which has correctly dropped all such direct qualifiers). Fixes PR6695. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99688 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-26Use the power of types to track down another canonicalization bug inJohn McCall
the ABI-computation interface. Fixes <rdar://problem/7691046>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97197 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24Canonicalize parameter and return types before computing ABI info. EliminatesJohn McCall
a common source of oddities and, in theory, removes some redundant ABI computations. Also fixes a miscompile I introduced yesterday by refactoring some code and causing a slightly different code path to be taken that didn't perform *parameter* type canonicalization, just normal type canonicalization; this in turn caused a bit of ABI code to misfire because it was looking for 'double' or 'float' but received 'const float'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97030 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23Perform two more constructor/destructor code-size optimizations:John McCall
1) emit base destructors as aliases to their unique base class destructors under some careful conditions. This is enabled for the same targets that can support complete-to-base aliases, i.e. not darwin. 2) Emit non-variadic complete constructors for classes with no virtual bases as calls to the base constructor. This is enabled on all targets and in theory can trigger in situations that the alias optimization can't (mostly involving virtual bases, mostly not yet supported). These are bundled together because I didn't think it worthwhile to split them, not because they really need to be. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09IRgen: Add CreateMemTemp, for creating an temporary memory object for a ↵Daniel Dunbar
particular type, and flood fill. - CreateMemTemp sets the alignment on the alloca correctly, which fixes a great many places in IRgen where we were doing the wrong thing. - This fixes many many more places than the test case, but my feeling is we need to audit alignment systematically so I'm not inclined to try hard to test the individual fixes in this patch. If this bothers you, patches welcome! PR6240. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95648 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06Use the correct function info for constructors when applying function ↵Anders Carlsson
attributes. Fixes PR6245. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Standardize the parsing of function type attributes in a way thatJohn McCall
follows (as conservatively as possible) gcc's current behavior: attributes written on return types that don't apply there are applied to the function instead, etc. Only parse CC attributes as type attributes, not as decl attributes; don't accepet noreturn as a decl attribute on ValueDecls, either (it still needs to apply to other decls, like blocks). Consistently consume CC/noreturn information throughout codegen; enforce this by removing their default values in CodeGenTypes::getFunctionInfo(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-03Revert the new reference binding code; I came up with a way simpler solution ↵Anders Carlsson
for the reference binding bug that is preventing self-hosting. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95223 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-31Start creating CXXBindReferenceExpr nodes when binding complex types to ↵Anders Carlsson
references. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29Simplify EmitLValueForField - we can get whether the field is part of a ↵Anders Carlsson
union or not from the FieldDecl (through its DeclContext). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94798 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Fill in the return value slot in CGExprAgg::VisitCallExpr. This takes us ↵Anders Carlsson
halfway towards fixing PR5824. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Pass ReturnValueSlot to EmitCall. No functionality change yet.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-07implement PR5274: mark 'restrict' parameters as noaliasNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90778 91177308-0d34-0410-b5e6-96231b3b80d8
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