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341 Commits

Author SHA1 Message Date
Akira Hatanaka
f093f5be3e Have functions return structures smaller than 128-bit in registers if ABI 
is either N32 or N64. 

llvm-svn: 147520
 2012-01-04 03:34:42 +00:00
Tony Linthicum
76329bf83f Hexagon backend support 
llvm-svn: 146413
 2011-12-12 21:14:55 +00:00
Eli Friedman
b8e45b28da Minor comment update. 
llvm-svn: 145905
 2011-12-06 03:08:26 +00:00
Eli Friedman
bfd5addf4c When we're passing a vector with an illegal type through memory on x86-64, use byval so we're sure the backend does the right thing. Fixes va_arg with illegal vectors and an obscure ABI mismatch with __m64 vectors. 
llvm-svn: 145652
 2011-12-02 00:11:43 +00:00
Eli Friedman
f37bd2f2f1 Don't use a varargs convention for calls unprototyped functions where one of the arguments is an AVX vector. 
llvm-svn: 145574
 2011-12-01 04:53:19 +00:00
Tanya Lattner
71f1b2dcd4 Correct the code generation for function arguments of vec3 types on x86_64 when they are greater than 128 bits. This was incorrectly coercing things like long3 into a double2. 
Add test case.

llvm-svn: 145312
 2011-11-28 23:18:11 +00:00
Eli Friedman
f22fa9eaef Finish r144971, which was an incomplete commit. 
llvm-svn: 144972
 2011-11-18 04:01:36 +00:00
Eli Friedman
0b3f201b61 Fix the meaning of an "empty" record for the case of a zero-length array. Use isEmptyRecord for arguments on x86-32; there are structs of size 0 which don't count as empty. 
llvm-svn: 144971
 2011-11-18 03:47:20 +00:00
Eli Friedman
a1748564b4 Make va_arg on x86-64 compute alignment the same way as argument passing. 
Fixes <rdar://problem/10463281>.

llvm-svn: 144966
 2011-11-18 02:44:19 +00:00
Eli Friedman
1d7dd3b682 A bunch of fixes to argument passing and va_arg on Darwin x86-32 for structures containing an SSE vector. 
llvm-svn: 144963
 2011-11-18 02:12:09 +00:00
Eli Friedman
e5c85622c9 Don't try to expand struct arguments containing holes on x86-32. From gcc struct layout tests. 
llvm-svn: 144961
 2011-11-18 01:32:26 +00:00
Eli Friedman
ee94534662 Simplify code for returning a struct for Darwin x86-32 ABI. Use a better type for a function returning a struct containing only a pointer. Handle the edge case of a struct containing only a float or double plus some dead padding instead of asserting. 
llvm-svn: 144960
 2011-11-18 01:25:50 +00:00
Eli Friedman
9f061a37bb Ignore empty unions in argument lowering on x86-32. From gcc struct layout tests. 
llvm-svn: 144944
 2011-11-18 00:28:11 +00:00
Akira Hatanaka
f3879ee666 Use a single integer type for a sub-doubleword part of a byval structure. 
llvm-svn: 143666
 2011-11-03 23:31:00 +00:00
Jan Wen Voung
180319f72d Do not add "byval" attribute to records with non-trivial copy constructors 
and destructors in the DefaultABIInfo.

llvm-svn: 143601
 2011-11-03 00:59:44 +00:00
Akira Hatanaka
756ce7f9ab Set MinABIStackAlignInBytes to 8 if ABI is N32/64. 
llvm-svn: 143597
 2011-11-03 00:05:50 +00:00
Akira Hatanaka
101f70da7c Convert the type of a structure passed by value if it has double precision 
fields in order to ease handling of such structures in backend. 

llvm-svn: 143596
 2011-11-02 23:54:49 +00:00
Akira Hatanaka
1437852c38 Return function results whose size is smaller than 128-bits in registers if ABI 
is N32/64.

llvm-svn: 143589
 2011-11-02 23:14:57 +00:00
Bob Wilson
1d9269a8d6 Check for homogeneous aggregate return values with ARM's AAPCS-VFP ABI. 
llvm-svn: 143530
 2011-11-02 04:51:36 +00:00
Dan Gohman
53bb0ff685 Remove the SystemZ backend. 
llvm-svn: 142879
 2011-10-24 23:48:52 +00:00
Peter Collingbourne
adcf7c9203 TCE target: conversion of OpenCL reqd_work_group_size attr to metadata 
Patch by Pekka Jääskeläinen!

llvm-svn: 141865
 2011-10-13 16:24:41 +00:00
Richard Smith
caf3390d44 Constant expression evaluation refactoring: 
- Remodel Expr::EvaluateAsInt to behave like the other EvaluateAs* functions,
   and add Expr::EvaluateKnownConstInt to capture the current fold-or-assert
   behaviour.
 - Factor out evaluation of bitfield bit widths.
 - Fix a few places which would evaluate an expression twice: once to determine
   whether it is a constant expression, then again to get the value.

llvm-svn: 141561
 2011-10-10 18:28:20 +00:00
Ted Kremenek
c168e50722 Free 'TheTargetCodeGenInfo' in the class CodeGenModule. This looks like an obvious memory leak that was reported from LLDB devs. The comment indicates the leak is deliberate, but I have no idea why this needs to be so. Please comment/revert if you know otherwise. 
llvm-svn: 141479
 2011-10-08 05:28:26 +00:00
Peter Collingbourne
5bad4afa2f CUDA: set proper calling conventions for PTX 
llvm-svn: 141296
 2011-10-06 16:49:54 +00:00
Justin Holewinski
38031978b5 PTX: Set proper calling conventions for PTX in OpenCL mode. 
llvm-svn: 141193
 2011-10-05 17:58:44 +00:00
David Blaikie
aa347f9392 Removing a bunch of dead returns/breaks after llvm_unreachables. 
llvm-svn: 140407
 2011-09-23 20:26:49 +00:00
David Blaikie
83d382b1ca Switch assert(0/false) llvm_unreachable. 
llvm-svn: 140367
 2011-09-23 05:06:16 +00:00
John McCall
cbc038a6c3 ANSI C requires that a call to an unprototyped function type succeed 
if the definition has a non-variadic prototype with compatible
parameters.  Therefore, the default rule for such calls must be to
use a non-variadic convention.  Achieve this by casting the callee to
the function type with which it is required to be compatible, unless
the target specifically opts out and insists that unprototyped calls
should use the variadic rules.  The only case of that I'm aware of is
the x86-64 convention, which passes arguments the same way in both
cases but also sets a small amount of extra information;  here we seek
to maintain compatibility with GCC, which does set this when calling
an unprototyped function.

Addresses PR10810 and PR10713.

llvm-svn: 140241
 2011-09-21 08:08:30 +00:00
Akira Hatanaka
ec11b4fa5a Create a MipsTargetCodeGenInfo object for mips64/mips64el. The size of the 
UnwindException structure is 32 for mips64. 

llvm-svn: 140165
 2011-09-20 18:30:57 +00:00
Akira Hatanaka
0486db08bd Add a parameter to MipsTargetCodeGenInfo's constructor. 
llvm-svn: 140161
 2011-09-20 18:23:28 +00:00
Douglas Gregor
e8bbc12152 Extend the ASTContext constructor to delay the initialization of 
builtin types (When requested). This is another step toward making
ASTUnit build the ASTContext as needed when loading an AST file,
rather than doing so after the fact. No actual functionality change (yet).

llvm-svn: 138985
 2011-09-02 00:18:52 +00:00
John McCall
3480ef24d1 The size of struct UnwindException varies by platform with no 
apparent general rule.  Just special-case it as appropriate.
PR10789.

llvm-svn: 138792
 2011-08-30 01:42:09 +00:00
Akira Hatanaka
ae31c7af1c Alignment of a va_arg must be at least as large as the ABI's minimum alignment. 
llvm-svn: 137420
 2011-08-12 02:30:14 +00:00
Akira Hatanaka
dabfc21fbf Add definition of a static member of a class. 
llvm-svn: 137411
 2011-08-12 01:43:14 +00:00
Bob Wilson
e826a2a56b Handle "homogeneous aggregates" as required by the ARM AAPCS-VFP ABI. 
A homogeneous aggregate is an aggregate data structure where after flattening
any nesting there are 1 to 4 elements of the same base type that is either a
float, double, or Neon vector.  All Neon vectors of the same size, either 64
or 128 bits, are treated as equivalent for this purpose.  When using the
AAPCS-VFP ABI, check for homogeneous aggregates and pass them as arguments by
expanding them into a sequence of their base types.  This requires extending
the existing support for expanded arguments to handle not only structs, but
also constant arrays and complex types.

llvm-svn: 136767
 2011-08-03 05:58:22 +00:00
Rafael Espindola
11d994b769 Implements alignment for long long and double types in va_arg on ARM AAPCS. 
Patch by Jim (Ningjie) Chen.

llvm-svn: 136734
 2011-08-02 22:33:37 +00:00
Bob Wilson
8e2b75dbad Revert "Re-enable byval for ARM in clang. rdar://problem/7662569" 
This reverts commit 67d097e1232b7d66f58989c16a45b8a11721f76e.
We found a miscompile with ARM byval, which is still being investigated.
In the meantime, this works around the problem by disabling ARM byval.

Conflicts:
	lib/CodeGen/TargetInfo.cpp

llvm-svn: 136662
 2011-08-01 23:39:04 +00:00
Akira Hatanaka
fb1d9f325c Implement MipsABIInfo::EmitVAArg. This fix enables clang to complete compilation 
without bailing out when va_arg is an aggregate expression. However, 
alignment checking needs to be added in isSafeToEliminateVarargsCast in
InstCombineCalls.cpp in order to produce correct mips code (see link below).

http://lists.cs.uiuc.edu/pipermail/llvmdev/2011-July/042047.html

llvm-svn: 136647
 2011-08-01 20:48:01 +00:00
Akira Hatanaka
df425dbf04 Pass records with non-trivial destructors or constructors indirectly. 
llvm-svn: 136630
 2011-08-01 18:09:58 +00:00
Chris Lattner
0e62c1cc0b remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports 
them into the clang namespace.

llvm-svn: 135852
 2011-07-23 10:55:15 +00:00
Chris Lattner
2192fe50da de-constify llvm::Type, patch by David Blaikie! 
llvm-svn: 135370
 2011-07-18 04:24:23 +00:00
Joerg Sonnenberger
4921fe2f9e Fix typo 
llvm-svn: 135285
 2011-07-15 18:23:44 +00:00
Bruno Cardoso Lopes
98154a76fd Reapply r134946 with fixes. Tested on Benjamin testcase and other test-suite failures. 
llvm-svn: 135091
 2011-07-13 21:58:55 +00:00
Bruno Cardoso Lopes
0aadf83f80 Revert r134946 
llvm-svn: 135004
 2011-07-12 22:30:58 +00:00
Bruno Cardoso Lopes
37b7fd0ab2 Fix a typo! 
llvm-svn: 134952
 2011-07-12 02:47:38 +00:00
Bruno Cardoso Lopes
75541d00e0 Do the same as r134946 for arrays. Add more testcases for avx x86_64 arg 
passing.

llvm-svn: 134951
 2011-07-12 01:27:38 +00:00
Bruno Cardoso Lopes
7a26681092 Fix one x86_64 abi issue and the test to actually look for the right thing, 
which is: { <4 x float>, <4 x float> } should continue to go through memory.

llvm-svn: 134946
 2011-07-12 00:30:27 +00:00
Bruno Cardoso Lopes
21a41bb5ec Reapply r134754, which turns out to be working correctly and also 
add one more testcase.

llvm-svn: 134934
 2011-07-11 22:41:29 +00:00
Jay Foad
7c57be3e2b De-constify Types in StructType::get() and TargetData::getIntPtrType(). 
llvm-svn: 134893
 2011-07-11 09:56:20 +00:00
Chris Lattner
a5f58b05e8 clang side to match the LLVM IR type system rewrite patch. 
llvm-svn: 134831
 2011-07-09 17:41:47 +00:00