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Commit Graph

34207 Commits

Author SHA1 Message Date
Devang Patel
9bc265b94a Refactor code into a separate method.
llvm-svn: 41826
2007-09-11 00:42:56 +00:00
Chris Lattner
93ddf1dd70 Testcase for PR1634
llvm-svn: 41824
2007-09-11 00:39:43 +00:00
Devang Patel
49ffe783eb Clear split info object.
llvm-svn: 41823
2007-09-11 00:23:56 +00:00
Devang Patel
8394964f1a Split condition does not have to be ICmpInst in all cases.
llvm-svn: 41822
2007-09-11 00:12:56 +00:00
Devang Patel
82374f7476 Check all terminators inside loop.
llvm-svn: 41821
2007-09-10 23:57:58 +00:00
Chris Lattner
fe8bd8b113 remove obsolete testcase
llvm-svn: 41820
2007-09-10 23:51:41 +00:00
Chris Lattner
3ace09794b remove some dead code, this is handled by constant folding.
llvm-svn: 41819
2007-09-10 23:46:29 +00:00
Chris Lattner
f08a077fa9 Fix a buggy constant folding transformation when handling aliases.
llvm-svn: 41818
2007-09-10 23:42:42 +00:00
Devang Patel
ce76c29be0 Swap exit condition operands if it works.
llvm-svn: 41817
2007-09-10 23:34:06 +00:00
Chris Lattner
9f93ab3579 regenerate
llvm-svn: 41816
2007-09-10 23:24:14 +00:00
Chris Lattner
c94e3e9361 Fix PR1645 by resolving forward alias references.
llvm-svn: 41815
2007-09-10 23:23:53 +00:00
Dale Johannesen
e017870ae6 Add missing llvm-dis.
llvm-svn: 41813
2007-09-10 22:47:59 +00:00
Evan Cheng
24e8e4d6ef 80 col.
llvm-svn: 41812
2007-09-10 22:22:23 +00:00
Evan Cheng
b639648fc5 New entry.
llvm-svn: 41810
2007-09-10 22:16:37 +00:00
Evan Cheng
8501592984 Observation of rematerialization.
llvm-svn: 41809
2007-09-10 22:11:18 +00:00
Chris Lattner
d4602cc0e7 Add some notes about better flag handling.
llvm-svn: 41808
2007-09-10 21:43:18 +00:00
Chris Lattner
2add65570c Emit:
cmpl    %eax, %ecx
        setae   %al
        movzbl  %al, %eax

instead of:

        cmpl    %eax, %ecx
        setb    %al
        xorb    $1, %al
        movzbl  %al, %eax

when using logical not of a C comparison.

llvm-svn: 41807
2007-09-10 21:39:07 +00:00
Chris Lattner
5fd9bec89d this is not infinite recursion.
llvm-svn: 41806
2007-09-10 21:16:23 +00:00
Chris Lattner
ca656d2007 1. Don't call Value::getName(), which is slow.
2. Lower calls to fabs and friends to FABS nodes etc unless the function has
   internal linkage.  Before we wouldn't lower if it had a definition, which
   is incorrect.  This allows us to compile:

define double @fabs(double %f) {
        %tmp2 = tail call double @fabs( double %f )
        ret double %tmp2
}

into:

_fabs:
        fabs f1, f1
        blr 

llvm-svn: 41805
2007-09-10 21:15:22 +00:00
Chris Lattner
ab8aa7d61a Prevent tailcallelim from breaking "recursive" calls to builtins.
llvm-svn: 41804
2007-09-10 20:58:55 +00:00
Evan Cheng
4715ccb29c It's not safe to rematerialize MOV32r0 etc. by simply cloning the original
instruction. These are implemented with xor which will modify the conditional
code. They should be rematerialized as move instructions.

llvm-svn: 41802
2007-09-10 20:48:53 +00:00
Devang Patel
76790c1b28 Filter exit conditions which are not yet handled.
llvm-svn: 41800
2007-09-10 18:33:42 +00:00
Devang Patel
952baa25c2 New test.
llvm-svn: 41799
2007-09-10 18:12:52 +00:00
Devang Patel
7a759cdfd7 Require SCEV before LCSSA.
llvm-svn: 41798
2007-09-10 18:08:23 +00:00
Owen Anderson
ab8a978ed7 Remove an un-needed dependence query. This improves compile time marginally on 401.bzip2.
llvm-svn: 41792
2007-09-09 21:43:49 +00:00
Daniel Berlin
f0f3834ee6 Add SparseBitVector implementation
llvm-svn: 41790
2007-09-09 01:10:40 +00:00
Owen Anderson
b1388b7afb Turn GVN on by default.
llvm-svn: 41787
2007-09-08 22:23:52 +00:00
Dale Johannesen
9dfdc452d9 Implement misaligned FP loads and stores.
llvm-svn: 41786
2007-09-08 19:29:23 +00:00
Nick Lewycky
7a9495d5e6 Fix description of the call instruction. There are two types, with one being
optional.

llvm-svn: 41785
2007-09-08 13:57:50 +00:00
Chuck Rose III
788df70ec3 Fix for VisualStudio. It is treating a 2 bit enum as a signed int for comparison purposes, causing failures. Using an extra bit fixes it.
llvm-svn: 41784
2007-09-08 04:17:08 +00:00
Evan Cheng
e6c68e7668 Smarter Reset(). Instead of deallocating all memory regions and reallocate the
first region, just deallocate all but the last region in the list.

llvm-svn: 41782
2007-09-08 00:02:17 +00:00
Evan Cheng
65df926ced TableGen no longer emit CopyFromReg nodes for implicit results in physical
registers. The scheduler is now responsible for emitting them.

llvm-svn: 41781
2007-09-07 23:59:02 +00:00
Bill Wendling
04a6163921 Add missing index versions of instructions to the map.
llvm-svn: 41776
2007-09-07 22:01:02 +00:00
Dan Gohman
3bc1bc2590 Avoid storing and reloading zeros and other constants from stack slots
by flagging the associated instructions as being trivially rematerializable.

llvm-svn: 41775
2007-09-07 21:32:51 +00:00
Dale Johannesen
783215c630 Apply feedback from previous patch.
llvm-svn: 41774
2007-09-07 21:07:57 +00:00
Dale Johannesen
81660f7d7b Revert previous change to IR.
llvm-svn: 41769
2007-09-07 18:31:50 +00:00
Rafael Espindola
8c57e70f93 Add support for having different alignment for objects on call frames.
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768
2007-09-07 14:52:14 +00:00
Anton Korobeynikov
899c0c9c8d Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register
liveins and we let frontend solve type issue, not lowering code :)

llvm-svn: 41763
2007-09-07 11:39:35 +00:00
Bill Wendling
538f8f9d7f Test for PR1641.
llvm-svn: 41762
2007-09-07 08:30:09 +00:00
Chris Lattner
8e6c39d961 Don't zap back to back volatile load/stores
llvm-svn: 41759
2007-09-07 05:33:03 +00:00
Owen Anderson
4b71e55287 Add lengthof and endof templates that hide a lot of sizeof computations.
Patch by Sterling Stein!

llvm-svn: 41758
2007-09-07 04:06:50 +00:00
David Greene
04a132ad5f Constify to catch bugs.
llvm-svn: 41751
2007-09-06 19:46:46 +00:00
Dale Johannesen
86f367a6b7 Next round of APFloat changes.
Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)

llvm-svn: 41747
2007-09-06 18:13:44 +00:00
Anton Korobeynikov
0e3789f07a Proper handle case, when aliasee is external weak symbol referenced only by alias itself.
Also, fix a case, when target doesn't have weak symbols supported.

llvm-svn: 41746
2007-09-06 17:21:48 +00:00
David Greene
6df3ab79be Add instruction dump output. This helps find bugs.
llvm-svn: 41744
2007-09-06 16:36:39 +00:00
David Greene
2ca4b270db Pluggable coalescers inplementation.
llvm-svn: 41743
2007-09-06 16:18:45 +00:00
Nick Lewycky
79e179ff1f Use isTrueWhenEqual. Thanks Chris!
llvm-svn: 41741
2007-09-06 02:40:25 +00:00
Nick Lewycky
2f66503c0a When the two operands of an icmp are equal, there are five possible predicates
that would make the icmp true. Fixes PR1637.

llvm-svn: 41740
2007-09-06 01:10:22 +00:00
Evan Cheng
15c07fb194 Fix a memory leak.
llvm-svn: 41739
2007-09-06 01:07:24 +00:00
Evan Cheng
896c1ed385 Fix a bug in X86InstrInfo::convertToThreeAddress that caused it to codegen:
leal    (,%rcx,8), %rcx
It should be
leal    (,%rcx,8), %ecx

llvm-svn: 41735
2007-09-06 00:14:41 +00:00