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1071 Commits

Author SHA1 Message Date
Eli Friedman 26a484852e Code generation for 'fence' instruction. 
llvm-svn: 136283
 2011-07-27 22:21:52 +00:00
Dan Gohman 456b1edd0d Revert r136156, which broke several buildbots. 
llvm-svn: 136206
 2011-07-27 01:10:27 +00:00
Dan Gohman 9eb62cd159 Delete unnecessarily cautious LastCALLSEQ code. 
llvm-svn: 136156
 2011-07-26 22:00:59 +00:00
Chris Lattner 229907cd11 land David Blaikie's patch to de-constify Type, with a few tweaks. 
llvm-svn: 135375
 2011-07-18 04:54:35 +00:00
Dan Gohman 945864d6dc LegalizeDAG doesn't need its own copy of this enum. 
llvm-svn: 135320
 2011-07-15 22:51:43 +00:00
Dan Gohman e49e74261a Delete LegalizeDAG's own version of isTypeLegal and getTypeAction 
and just use the ones from TargetLowering directly.

llvm-svn: 135318
 2011-07-15 22:39:09 +00:00
Dan Gohman 8c5ca645ce Delete an unused variable and a redundant assert. 
llvm-svn: 135311
 2011-07-15 22:19:02 +00:00
Dan Gohman ad94608b1f Modernize comments. 
llvm-svn: 135305
 2011-07-15 21:42:20 +00:00
Cameron Zwarich f03fa189ca Add an intrinsic and codegen support for fused multiply-accumulate. The intent 
is to use this for architectures that have a native FMA instruction.

llvm-svn: 134742
 2011-07-08 21:39:21 +00:00
Nadav Rotem 10193c830b Add a testcase for checking the integer-promotion of many different vector 
types (with power of two types such as 8,16,32 .. 512).

Fix a bug in the integer promotion of bitcast nodes. Enable integer expanding
only if the target of the conversion is an integer (when the type action is
scalarize).

Add handling to the legalization of vector load/store in cases where the saved
vector is integer-promoted.

llvm-svn: 132985
 2011-06-14 08:11:52 +00:00
Nadav Rotem a9effb13dd Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' 
code in one place. Re-apply 131534 and fix the multi-step promotion of integers.

llvm-svn: 132217
 2011-05-27 21:03:13 +00:00
Duncan Sands 3d9407f4eb Revert commit 131534 since it seems to have broken several buildbots. 
Original log entry:
Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'
code in one place.

llvm-svn: 131536
 2011-05-18 14:57:56 +00:00
Nadav Rotem c5c27ede55 Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' 
code in one place.

llvm-svn: 131534
 2011-05-18 12:26:38 +00:00
Dan Gohman abffc991dc Misc. code cleanups. 
llvm-svn: 131497
 2011-05-17 22:22:52 +00:00
Dan Gohman d282f46c6b Delete unused variables. 
llvm-svn: 131430
 2011-05-16 22:19:54 +00:00
Dan Gohman d4d12d14b5 Trim #includes. 
llvm-svn: 131429
 2011-05-16 22:14:50 +00:00
Dan Gohman ae9b1685a8 Fix whitespace and 80-column violations. 
llvm-svn: 131428
 2011-05-16 22:09:53 +00:00
Stuart Hastings aa02c0847d Since I can't reproduce the failures from 131261, re-trying with a 
simplified version.  <rdar://problem/9298790>

llvm-svn: 131274
 2011-05-13 00:51:54 +00:00
Stuart Hastings 8d57d8ea64 Revert 131266 and 131261 due to buildbot complaints. 
rdar://problem/9298790

llvm-svn: 131269
 2011-05-13 00:15:17 +00:00
Stuart Hastings 89f1b47e3a Non-fast-isel followup to 129634; correctly handle branches controlled 
by non-CMP expressions.  The executable test case (129821) would test
this as well, if we had an "-O0 -disable-arm-fast-isel" LLVM-GCC
tester.  Alas, the ARM assembly would be very difficult to check with
FileCheck.

The thumb2-cbnz.ll test is affected; it generates larger code (tst.w
vs. cmp #0), but I believe the new version is correct.
rdar://problem/9298790

llvm-svn: 131261
 2011-05-12 23:36:41 +00:00
Stuart Hastings 999fa3bf1f Correctly walk through nested and adjacent CALLSEQ_START nodes. No 
test case; I've only seen this on a release branch, and I can't get it
to reproduce on trunk.  rdar://problem/7662569

llvm-svn: 131152
 2011-05-10 21:20:03 +00:00
Eric Christopher bcaedb5ce0 Rewrite the expander for umulo/smulo to remember to sign extend the input 
manually and pass all (now) 4 arguments to the mul libcall. Add a new
ExpandLibCall for just this (copied gratuitously from type legalization).

Fixes rdar://9292577

llvm-svn: 129842
 2011-04-20 01:19:45 +00:00
Stuart Hastings 468086d5e1 Delete unnecessary variable. <rdar://problem/7662569> 
llvm-svn: 129796
 2011-04-19 20:09:38 +00:00
Stuart Hastings 0b68c1219f Support nested CALLSEQ_BEGIN/END; necessary for ARM byval support. <rdar://problem/7662569> 
llvm-svn: 129761
 2011-04-19 16:16:58 +00:00
Evan Cheng b14ce09fca Fix divmod libcall lowering. Convert to {S|U}DIVREM first and then expand the node to a libcall. rdar://9280991 
llvm-svn: 129633
 2011-04-16 03:08:26 +00:00
Chris Lattner 0ab5e2cded Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!

llvm-svn: 129558
 2011-04-15 05:18:47 +00:00
Stuart Hastings ad68c93a2d Revert 123704; it broke threaded LLVM. 
llvm-svn: 128868
 2011-04-05 00:37:28 +00:00
Evan Cheng bd76679700 Issue libcalls __udivmod*i4 / __divmod*i4 for div / rem pairs. 
rdar://8911343

llvm-svn: 128696
 2011-04-01 00:42:02 +00:00
Owen Anderson cd526fa15e Use the correct LHS type when determining the legalization of a shift's RHS type. 
llvm-svn: 127163
 2011-03-07 18:29:47 +00:00
Owen Anderson b2c80da4ae Allow targets to specify a the type of the RHS of a shift parameterized on the type of the LHS. 
llvm-svn: 126518
 2011-02-25 21:41:48 +00:00
Devang Patel b7ae3ccb84 Do not lose debug info of an inlined function argument even if the argument is only used through GEPs. 
This time with a fix that avoids using invalidated DenseMap iterator.

llvm-svn: 125984
 2011-02-18 22:43:42 +00:00
Cameron Zwarich 0a1a36dc46 Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure. 
llvm-svn: 125830
 2011-02-18 04:58:10 +00:00
Devang Patel f922a431ee Do not lose debug info of an inlined function argument even if the argument is only used through GEPs. 
llvm-svn: 125794
 2011-02-17 23:33:27 +00:00
Stuart Hastings 81c4306005 Swap VT and DebugLoc operands of getExtLoad() for consistency with 
other getNode() methods.  Radar 9002173.

llvm-svn: 125665
 2011-02-16 16:23:55 +00:00
Devang Patel 1cec755494 Speculatively revert r124380. 
llvm-svn: 124397
 2011-01-27 19:15:01 +00:00
Devang Patel 3b266a2780 While legalizing SDValues do not drop SDDbgValues, trasfer them to new legal nodes. 
Take 2. This includes fix for dragonegg crash.

llvm-svn: 124380
 2011-01-27 17:43:53 +00:00
Bill Wendling fb4ee9bbde Initialize variable to get rid of clang warning. 
llvm-svn: 124331
 2011-01-26 22:21:35 +00:00
Devang Patel 084e0628e0 Revert r124302 
llvm-svn: 124320
 2011-01-26 21:12:32 +00:00
David Greene bab5e6ed0e [AVX] Add INSERT_SUBVECTOR and support it on x86. This provides a 
default implementation for x86, going through the stack in a similr
fashion to how the codegen implements BUILD_VECTOR.  Eventually this
will get matched to VINSERTF128 if AVX is available.

llvm-svn: 124307
 2011-01-26 19:13:22 +00:00
Devang Patel a11210b1b8 While legalizing SDValues do not drop SDDbgValues, trasfer them to new legal nodes. 
llvm-svn: 124302
 2011-01-26 18:55:05 +00:00
Eric Christopher b2139f655b Use only one API at a time. 
llvm-svn: 123866
 2011-01-20 01:29:23 +00:00
Eric Christopher bb14f65672 If we can, lower the multiply part of a umulo/smulo call to a libcall 
with an invalid type then split the result and perform the overflow check
normally.

Fixes the 32-bit parts of rdar://8622122 and rdar://8774702.

llvm-svn: 123864
 2011-01-20 00:29:24 +00:00
Stuart Hastings 4fa832aab0 Remove checking that prevented overlapping CALLSEQ_START/CALLSEQ_END 
ranges, add legalizer support for nested calls.  Necessary for ARM
byval support.  Radar 7662569.

llvm-svn: 123704
 2011-01-18 00:09:27 +00:00
Benjamin Kramer bec03ea725 Add an assert so we don't silently miscompile ctpop for bit widths > 128. 
llvm-svn: 123549
 2011-01-15 21:19:37 +00:00
Benjamin Kramer fff2517edc Reimplement CTPOP legalization with the "best" algorithm from 
http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel

In a silly microbenchmark on a 65 nm core2 this is 1.5x faster than the old
code in 32 bit mode and about 2x faster in 64 bit mode. It's also a lot shorter,
especially when counting 64 bit population on a 32 bit target.

I hope this is fast enough to replace Kernighan-style counting loops even when
the input is rather sparse.

llvm-svn: 123547
 2011-01-15 20:30:30 +00:00
Dan Gohman 958620dd6d Fix r123346 to handle scalar types too. 
llvm-svn: 123352
 2011-01-13 01:06:51 +00:00
Dan Gohman 6e017a1134 Apply the patch from PR8958, which allows llc to get slightly 
further on the associated testcase before aborting.

llvm-svn: 123346
 2011-01-12 23:56:26 +00:00
Anton Korobeynikov 2f93128109 Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there. 
llvm-svn: 123170
 2011-01-10 12:39:04 +00:00
Eric Christopher 988518109d Remove TODO, these appear to be implemented. 
llvm-svn: 122849
 2011-01-04 22:31:50 +00:00
Stuart Hastings 83cce8e7ab Fix indentation, add comment. 
llvm-svn: 122345
 2010-12-21 17:16:58 +00:00