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Author SHA1 Message Date
Duncan Sands
1095bdca79 Testcase for gimplify_expr crash caused by an 
unexpected placeholder_expr.

llvm-svn: 46006
 2008-01-15 19:55:41 +00:00
Evan Cheng
5e40103440 Oops. Forgot to commit this. 
llvm-svn: 46003
 2008-01-15 07:49:54 +00:00
Evan Cheng
4eb3d6c8d6 Oops. Forgot to commit this. 
llvm-svn: 46002
 2008-01-15 07:49:36 +00:00
Anton Korobeynikov
08ea121968 For PR1839: add initial support for __builtin_trap. llvm-gcc part is missed 
as well as PPC codegen

llvm-svn: 46001
 2008-01-15 07:02:33 +00:00
Chris Lattner
8c17d65f09 clarify that byval is valid for any pointer argument. 
llvm-svn: 45998
 2008-01-15 04:34:22 +00:00
Evan Cheng
d7403ac663 Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info. 
llvm-svn: 45997
 2008-01-15 03:34:58 +00:00
Evan Cheng
4eb7ae04c5 Both x86-32 and x86-64 handle byval parameter attributes. 
llvm-svn: 45996
 2008-01-15 03:15:41 +00:00
Evan Cheng
57714c090b ByVal stack slot alignment should be at least as large as pointer ABI alignment. 
llvm-svn: 45995
 2008-01-15 03:14:05 +00:00
Evan Cheng
fceb25b8e6 Revert my last commit. Not needed. 
llvm-svn: 45994
 2008-01-15 03:10:35 +00:00
Duncan Sands
087d6020ee Simplify CallInst::hasByValArgument using a new method. 
llvm-svn: 45974
 2008-01-14 19:57:00 +00:00
Duncan Sands
81e35b4d47 I noticed that the trampoline straightening transformation could 
drop attributes on varargs call arguments.  Also, it could generate
invalid IR if the transformed call already had the 'nest' attribute
somewhere (this can never happen for code coming from llvm-gcc,
but it's a theoretical possibility).  Fix both problems.

llvm-svn: 45973
 2008-01-14 19:52:09 +00:00
Chris Lattner
b067edf1b3 don't create the post-ra scheduler unless it is enabled. 
llvm-svn: 45972
 2008-01-14 19:00:06 +00:00
Chris Lattner
a6559b0047 remove dead #include 
llvm-svn: 45971
 2008-01-14 18:45:28 +00:00
Evan Cheng
672ba05b73 Need a space to separate Make options. 
llvm-svn: 45964
 2008-01-14 17:58:03 +00:00
Duncan Sands
0e785005ce This test is now the same as byval-1.ll, so remove it. 
llvm-svn: 45960
 2008-01-14 14:57:30 +00:00
Duncan Sands
c6e42dfda1 Test that byval cannot be used with pointers to 
types with no size.

llvm-svn: 45959
 2008-01-14 14:55:05 +00:00
Duncan Sands
5bd24c7449 We now allow byval on fairly general pointer types. 
llvm-svn: 45956
 2008-01-14 06:53:45 +00:00
Chris Lattner
554971a6d6 Improve the FP stackifier to decide all on its own whether 
an instruction kills a register or not.  This is cheap and 
easy to do now that instructions record this on their flags,
and this eliminates the second pass of LiveVariables from the
x86 backend.  This speeds up a release llc by ~2.5%.

llvm-svn: 45955
 2008-01-14 06:41:29 +00:00
Evan Cheng
12fb1dc67e Simplify code. 
llvm-svn: 45950
 2008-01-14 02:38:45 +00:00
Chris Lattner
efb498eddb Fix the miscompilation of MiBench/consumer-lame that was exposed by Evan's 
byval work.  This miscompilation is due to the program indexing an array out
of range and us doing a transformation that broke this.

llvm-svn: 45949
 2008-01-14 02:09:12 +00:00
Chris Lattner
5d135cc20a The isNotSuitableForSRA property is now dead, don't compute it. 
llvm-svn: 45948
 2008-01-14 01:32:52 +00:00
Chris Lattner
760b05a331 Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very 
difficult to understand the invariants.

llvm-svn: 45947
 2008-01-14 01:31:05 +00:00
Chris Lattner
c2933482a0 Make the 'shrink global to bool' optimization more self contained, and thus 
easier to show that its safe.  No functionality change.

llvm-svn: 45946
 2008-01-14 01:17:44 +00:00
Chris Lattner
d22a5f6314 Turn a memcpy from a double* into a load/store of double instead of 
a load/store of i64.  The later prevents promotion/scalarrepl of the
source and dest in many cases.

This fixes the 300% performance regression of the byval stuff on 
stepanov_v1p2.

llvm-svn: 45945
 2008-01-14 00:28:35 +00:00
Chris Lattner
8560bb9d98 factor memcpy/memmove simplification out to its own SimplifyMemTransfer 
method, no functionality change.

llvm-svn: 45944
 2008-01-13 23:50:23 +00:00
Chris Lattner
5fbf76aaf4 simplify some code. If we can infer alignment for source and dest that are 
greater than memcpy alignment, and if we lower to load/store, use the best 
alignment info we have.

llvm-svn: 45943
 2008-01-13 22:30:28 +00:00
Chris Lattner
4f69f1a721 simplify some code by adding a InsertBitCastBefore method, 
make memmove->memcpy conversion a bit simpler.

llvm-svn: 45942
 2008-01-13 22:23:22 +00:00
Duncan Sands
0c362b8606 Whitespace tweak. 
llvm-svn: 45940
 2008-01-13 21:20:29 +00:00
Duncan Sands
423244deda Remove the assumption that byval has been applied to 
a pointer to a struct.

llvm-svn: 45939
 2008-01-13 21:19:59 +00:00
Duncan Sands
86c17f2ebf Allow the byval attribute for pointers to any type with 
a size, not just structs.

llvm-svn: 45938
 2008-01-13 21:19:12 +00:00
Chris Lattner
32eae5daa5 Fix PR1907, a nasty miscompilation because instcombine didn't 
realize that ne & sgt  was a signed comparison (it was only 
looking at whether the left compare was signed).

llvm-svn: 45937
 2008-01-13 20:59:02 +00:00
Duncan Sands
1853262730 Check that nested functions don't get pointless 
static chains.

llvm-svn: 45936
 2008-01-13 18:44:12 +00:00
Duncan Sands
560625b701 Small simplification. 
llvm-svn: 45932
 2008-01-13 08:12:17 +00:00
Duncan Sands
7414cc131b When turning a call to a bitcast function into a direct call, 
if this becomes a varargs call then deal correctly with any
parameter attributes on the newly vararg call arguments.

llvm-svn: 45931
 2008-01-13 08:02:44 +00:00
Chris Lattner
a20247cd7b new testcase for rdar://5685492 
llvm-svn: 45918
 2008-01-13 00:19:57 +00:00
Chris Lattner
7fa87a190a improve cygwin compatibility, patch by Sam Bishop 
llvm-svn: 45917
 2008-01-12 22:54:07 +00:00
Chris Lattner
8b29caac2c clarify a note 
llvm-svn: 45914
 2008-01-12 18:58:46 +00:00
Evan Cheng
a5183224b0 Add hasByValArgument() to test if a call instruction has byval argument(s). 
llvm-svn: 45913
 2008-01-12 18:57:32 +00:00
Chris Lattner
d90840eddc we don't have to make an explicit copy of a byval argument when 
inlining a function if we know that the function does not write
to *any* memory.  This implements test/Transforms/Inline/byval2.ll

llvm-svn: 45912
 2008-01-12 18:54:29 +00:00
Evan Cheng
1e7cbf32c2 Indirect call with byval parameter requires a cast first. 
llvm-svn: 45911
 2008-01-12 18:53:07 +00:00
Duncan Sands
3b617cbe30 Be more liberal in what parameter attributes are 
allowed on the vararg arguments of a call.

llvm-svn: 45909
 2008-01-12 16:42:01 +00:00
Chris Lattner
fb5876f0be Allow clients to specify the inline threshold when creating 
the inliner pass.  Patch by Robert Zeh.

llvm-svn: 45903
 2008-01-12 06:49:13 +00:00
Chris Lattner
e1bd3e1e72 Add support for NetBSD, patch by Krister Walfridsson! 
llvm-svn: 45902
 2008-01-12 06:46:09 +00:00
Evan Cheng
01ee195d38 Add -disable-lto optimization. 
llvm-svn: 45900
 2008-01-12 04:27:18 +00:00
Chris Lattner
c23b7b79fa this actually does pass with 4.0 
llvm-svn: 45899
 2008-01-12 01:45:22 +00:00
Evan Cheng
08584fc86a Code clean up. 
llvm-svn: 45898
 2008-01-12 01:08:07 +00:00
Evan Cheng
2e84453e5b ByVal arguments are passed on stack. Make sure to allocate a slot using size and alignment information on the parameter attribute. 
llvm-svn: 45897
 2008-01-12 01:07:41 +00:00
Chris Lattner
5e112f44c8 fix a wordo that gordon noticed :) 
llvm-svn: 45896
 2008-01-12 00:53:16 +00:00
Chris Lattner
0242c393d1 Any x86 instruction that reads from an invariant location is invariant. 
This allows us to sink things like:
	cvtsi2sd	32(%esp), %xmm1
when reading from the argument area, for example.

llvm-svn: 45895
 2008-01-12 00:35:08 +00:00
Chris Lattner
efa13b2edd implement support for sinking a load out the bottom of a block that 
has no stores between the load and the end of block.  This works 
great and sinks hundreds of stores, but we can't turn it on because
machineinstrs don't have volatility information and we don't want to
sink volatile stores :(

llvm-svn: 45894
 2008-01-12 00:17:41 +00:00