maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
34,838 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

19438 Commits

Author SHA1 Message Date
Reid Spencer 68ee4e8efc Hush a noisy warning from GCC 4.2 about overflow during conversion by using 
the type "unsigned" instead of uintptr_t for a 1-bit structure field.

llvm-svn: 40066
 2007-07-19 21:05:30 +00:00
Owen Anderson f9e6542969 Make val_replace fail early, which reduces the time to optimize 403.gcc to 14.8s. 
llvm-svn: 40064
 2007-07-19 19:57:13 +00:00
Devang Patel a273d1cd3a Verify loop info. 
llvm-svn: 40062
 2007-07-19 18:02:32 +00:00
Duncan Sands 60f28bff4c Replace mysterious code causing a g++-4.2 warning 
with hopefully correct code that pleases g++-4.2.

llvm-svn: 40051
 2007-07-19 09:42:01 +00:00
Duncan Sands 85ec2af554 As pointed out by g++-4.2, the original code didn't do 
what it thought it was doing.

llvm-svn: 40044
 2007-07-19 07:31:58 +00:00
Owen Anderson ee99010782 Remember to free the heap allocated array if we're not going to use it. 
llvm-svn: 40043
 2007-07-19 06:45:33 +00:00
Owen Anderson 6aa17f1def Use SmallVector and DenseMap in even more places. 
With this, the time to optimize 403.gcc is down to 15.1s.

llvm-svn: 40042
 2007-07-19 06:37:56 +00:00
Owen Anderson 75a244d6eb Change ValueTable to use a DenseMap for mapping expressions to value numbers. 
This results in a slight speedup for 403.gcc.

llvm-svn: 40040
 2007-07-19 06:13:15 +00:00
Devang Patel ef43253e2e Set up ground work to verify preserved analysis info. 
llvm-svn: 40039
 2007-07-19 05:36:09 +00:00
Owen Anderson 6a4ff8549b Move some sets and maps to SmallPtrSet and DenseMap respectively. This 
reduces the time to optimize 403.gcc from 17.6s to 16.4s.

llvm-svn: 40036
 2007-07-19 03:32:44 +00:00
Devang Patel 186e0d8b0a After a basic block is split into two parts, 
second part dominates all the blocks dominated
by original basic block. And first part dominates
second part.

llvm-svn: 40035
 2007-07-19 02:29:24 +00:00
Devang Patel de5901523c Now this temp. fix is not required. 
llvm-svn: 40034
 2007-07-19 02:22:21 +00:00
Evan Cheng 94b5a80b93 Change instruction description to split OperandList into OutOperandList and 
InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr  : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr  : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "add{l} {$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;

llvm-svn: 40033
 2007-07-19 01:14:50 +00:00
Evan Cheng 22b0c344db Only adjust esp around calls in presence of alloca. 
llvm-svn: 40030
 2007-07-19 00:42:58 +00:00
Evan Cheng 7b5b06805a Only adjust esp around calls in presence of alloca. 
llvm-svn: 40028
 2007-07-19 00:42:05 +00:00
Devang Patel 8a1d1ac925 Fix typo. 
llvm-svn: 40025
 2007-07-18 23:50:19 +00:00
Devang Patel bb8ea8cefc Fix dominator info update to accommodate CFG changes. 
This fixes PR1559.

llvm-svn: 40024
 2007-07-18 23:48:20 +00:00
Evan Cheng a8d152a22a Add comment. 
llvm-svn: 40022
 2007-07-18 23:34:48 +00:00
Evan Cheng 8941071ae1 Use MOV instead of LEA to restore ESP if callee-saved frame size is 0; if previous instruction updates esp, fold it in. 
llvm-svn: 40018
 2007-07-18 21:26:06 +00:00
Dan Gohman 68659280fa Add constructor overloads for LoadInst and StoreInst that insert at the 
end of a BasicBlock and have an alignment parameter.

llvm-svn: 40016
 2007-07-18 20:51:11 +00:00
Dan Gohman 776962a97a Implement initial memory alignment awareness for SSE instructions. Vector loads 
and stores that have a specified alignment of less than 16 bytes now use
instructions that support misaligned memory references.

llvm-svn: 40015
 2007-07-18 20:23:34 +00:00
Owen Anderson e21f270858 Fix an issue where assignments that caused a SmallPtrSet to become non-small 
would result in calling realloc() on a null pointer.  Instead, if we encounter
this situation, make a normal call to malloc().

llvm-svn: 40014
 2007-07-18 19:54:15 +00:00
Dan Gohman a7b65c30a3 It's not necessary to do rounding for alloca operations when the requested 
alignment is equal to the stack alignment.

llvm-svn: 40004
 2007-07-18 16:29:46 +00:00
Evan Cheng f314055706 New entry. 
llvm-svn: 39998
 2007-07-18 08:21:49 +00:00
Evan Cheng 97b5dc63d7 Fold prologue esp update when possible. 
llvm-svn: 39984
 2007-07-17 21:26:42 +00:00
Evan Cheng f9ef70560e Dead code. 
llvm-svn: 39979
 2007-07-17 20:01:19 +00:00
Evan Cheng b2bb4b4040 Make sure not to break eh_return. 
llvm-svn: 39978
 2007-07-17 18:40:47 +00:00
Evan Cheng 27ba94bf3b Update. 
llvm-svn: 39977
 2007-07-17 18:39:45 +00:00
Evan Cheng 67e2e22e97 Missed the case where alloca is used but the stack size (not including callee-saved portion) is zero. Thanks Dan. 
llvm-svn: 39974
 2007-07-17 18:03:34 +00:00
Rafael Espindola 6389ef9854 detect invalid combination of sret and byval 
llvm-svn: 39971
 2007-07-17 13:34:23 +00:00
Evan Cheng 9ae2eb43d8 Use push / pop for prologues and epilogues. 
llvm-svn: 39967
 2007-07-17 07:59:08 +00:00
Chris Lattner 396156e00b no email addrs in file headers 
llvm-svn: 39962
 2007-07-17 05:56:43 +00:00
Reid Spencer 5060fd0fa3 Unbreak the build by putting calls to free into the implementation file and 
having that implementation file #include <cstdlib>.

llvm-svn: 39952
 2007-07-17 02:16:12 +00:00
Owen Anderson 09f86993bd Take advantage of undefined behavior if the source program tries to GEP 
beyond the end of an alloca to make FastDSE faster and more aggressive.

llvm-svn: 39945
 2007-07-16 23:34:39 +00:00
Owen Anderson 7fcaaadf1c Add support for walking up memory def chains, which enables finding many more 
dead stores on 400.perlbench.

llvm-svn: 39929
 2007-07-16 21:52:50 +00:00
Owen Anderson 81990a3fc3 Use realloc() to (potentially) resize the contents of SmallPtrSet in place. 
llvm-svn: 39926
 2007-07-16 21:27:44 +00:00
Reid Spencer 3363f4ad96 Return Undef if the block has no dominator. This was required to allow 
llvm-gcc build to succeed. Without this change it fails in libstdc++
compilation. This causes no regressions in dejagnu tests. However, 
someone who knows this code better might want to review it.

llvm-svn: 39924
 2007-07-16 21:03:44 +00:00
Dan Gohman 72efc04d8e Use ConstantFoldFP for folding all unary floating-point operations which may 
have an error, and refector out the code for binary operators into
ConstantFoldBinaryFP and use it for all binary floating-point operations
which may have an error. These functions still rely exclusively on errno
to detect errors though.

llvm-svn: 39923
 2007-07-16 15:26:22 +00:00
Dan Gohman 06c60b6032 Fix comments about vectors to use the current wording. 
llvm-svn: 39921
 2007-07-16 14:29:03 +00:00
Chris Lattner 640fd5124d Repair a regression in Transforms/InstCombine/mul.ll that Reid noticed. 
llvm-svn: 39896
 2007-07-16 04:15:34 +00:00
Nick Lewycky b7c0c8a350 Start adding and cleaning up comments. 
llvm-svn: 39894
 2007-07-16 02:58:37 +00:00
Nick Lewycky 5246026c8c Handle decrementing loops properly. Fixes PR1533. 
Always pass the constant as the second parameter to HowManyLessThans.

Remove obsolete "isSigned" parameter.

llvm-svn: 39893
 2007-07-16 02:08:00 +00:00
Chris Lattner d4fef8dbca Implement shift-simplify.ll:test[45]. 
First teach instcombine that sign bit checks only demand the 
sign bit, this allows simplify demanded bits to hack on 
expressions better.

Second, teach instcombine that ashr is useless if only the
sign bit is demanded.

llvm-svn: 39880
 2007-07-15 20:54:51 +00:00
Chris Lattner 06205d5567 Implement shift-simplify.ll:test3, turning: 
(X << 31) <s 0  --> (X&1) != 0

This happens dozens of times in the CFE.

llvm-svn: 39879
 2007-07-15 20:42:37 +00:00
Nick Lewycky ddc2f9ba57 Clarify the language. Pointed out by Duncan Sands. 
llvm-svn: 39857
 2007-07-14 17:41:03 +00:00
Nick Lewycky d20f485866 Fix the build. Patch from Holger Schurig. 
llvm-svn: 39856
 2007-07-14 15:11:14 +00:00
Anton Korobeynikov 383a324735 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855
 2007-07-14 14:06:15 +00:00
Nick Lewycky 39519f5c41 Use maximal intersection algorithm exclusively. Fixes miscompile bug. 
llvm-svn: 39852
 2007-07-14 04:28:04 +00:00
Nick Lewycky 61b4a265ee Add alternate ConstantRange intersection algorithm. 
llvm-svn: 39851
 2007-07-14 02:51:34 +00:00
Devang Patel 4cd1413f15 Make LCSSA a loop pass. 
llvm-svn: 39844
 2007-07-13 23:57:11 +00:00