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12711dfb16
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15612 Commits

Author SHA1 Message Date
Andrew Lenharth
12711dfb16 Make these hack flags hidden, like other dsa hack flags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31136 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 19:55:24 +00:00
Andrew Lenharth
72be6e63b1 Revert the aggressive inlining for now, it doesn't handle external correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31135 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 19:53:37 +00:00
Chris Lattner
ddaaa37487 Handle fallout from the recent branch-on-undef changes. This fixes 
Prolangs-C/agrep and SCCP/2006-10-23-IPSCCP-Crash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31132 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 18:57:02 +00:00
Chris Lattner
b354343af7 Minor tweak. Instead of generating: 
movl 32(%esp), %eax
        cmpl $1, %eax
        je LBB1_1       #bb
LBB1_4: #entry
        cmpl $2, %eax
        je LBB1_2       #bb2
        jmp LBB1_3      #UnifiedReturnBlock
LBB1_1: #bb

notice that we would miss the fall through and emit this instead:

        movl 32(%esp), %eax
        cmpl $2, %eax
        je LBB1_2       #bb2
LBB1_4: #entry
        cmpl $1, %eax
        jne LBB1_3      #UnifiedReturnBlock
LBB1_1: #bb


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31130 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 18:38:22 +00:00
Jim Laskey
66ebf0973d More complete solution to deleting blocks and debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31129 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 14:56:37 +00:00
Jim Laskey
978b35e502 [SU]int update - inactive code may get activated someday 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31128 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 14:39:22 +00:00
Nick Lewycky
c17229d591 Remove the Backwards operation. Resolving now works at the time when a 
property is added by running through the list of uses of the value and
adding resolved properties to the property set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 01:56:02 +00:00
Chris Lattner
b2e806eecd Fix phi node updating for switches lowered to linear sequences of branches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31125 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 23:00:53 +00:00
Chris Lattner
e236ac64a2 disable this code for now, it's not yet safely updating phi nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31124 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 22:47:10 +00:00
Nick Lewycky
7e189d095e Fix similar missing optimization opportunity in XOR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31123 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 22:22:58 +00:00
Chris Lattner
ecb8d06356 this part implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31122 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:40:12 +00:00
Nick Lewycky
92a8b71dc1 Whoops! Add missing NULL check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31121 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:38:24 +00:00
Anton Korobeynikov
1a3ecbb4a6 Do section switching right way for Mingw\Cygwin and Linux. 
This will allow (after llvm-gcc linkage fix) more dummy tests using
libstdc++ to pass on mingw :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31120 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:37:13 +00:00
Chris Lattner
d2c1d2200b Implement PR964 and Regression/CodeGen/Generic/SwitchLowering.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31119 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:36:53 +00:00
Nick Lewycky
5062250f36 Handle "if ((x|y) != 0)" for ints like we do for bools. Fixes missed 
optimization opportunity pointed out by Chris Lattner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31118 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:36:41 +00:00
Nick Lewycky
802fe27d3e AllocaInst can't return a null pointer. Fixes missed optimization 
opportunity pointed out by Andrew Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31115 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 19:53:27 +00:00
Chris Lattner
32b1e87f11 Add a workaround for PR962, disabling the more aggressive form of this 
transformation.  This speeds up a C++ app 2.25x.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31113 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 18:42:26 +00:00
Reid Spencer
2cb46e18cb Don't generate a prototype for _setjmp. At least on Linux, this function 
has a different prototype than the one #included from <setjmp.h>. This
patch fixes siod and a number of other test cases on Linux that were
failing the CBE because of this _setjmp issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31112 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 09:58:21 +00:00
Reid Spencer
21be86535b Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31111 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 07:03:43 +00:00
Reid Spencer
fd6131b5a8 Remove unneeded CHECK_FOR_ERROR invocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31110 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 07:03:09 +00:00
Chris Lattner
1ae022f647 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31109 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 06:08:13 +00:00
Chris Lattner
10b271152a change keyword to datalayout 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31108 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 06:07:41 +00:00
Chris Lattner
d2f9e609aa Change keyword to datalayout 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31107 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 06:06:56 +00:00
Chris Lattner
d2d86703f0 3 Changes: 
1. Better document what is going on here.
2. Only hack on one branch per iteration, making the results less conservative.
3. Handle the problematic case by marking edges executable instead of by
   playing with value lattice states.  This is far less pessimistic, and fixes
   SCCP/ipsccp-gvar.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31106 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 05:59:17 +00:00
Chris Lattner
4bc135e93b don't break infinite loops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31102 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 06:11:43 +00:00
Chris Lattner
7c4fe259f8 Implement support for branch reversal, fix a bug in branch analysis. 
This provides stuff like:

        cmpw cr0, r15, r29
        mr r14, r15
-       bge cr0, LBB3_111       ;bb656
-       b LBB3_90       ;bb501
+       blt cr0, LBB3_90        ;bb501
 LBB3_111:      ;bb656
        lwz r18, 68(r1)

which is particularly good for dispatch group formation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31101 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 06:03:11 +00:00
Chris Lattner
a2d799531a Use branch reversal to do stuff like this: 
call L_strcmp$stub
        testl %eax, %eax
-       jne LBB26_208   #cond_true6020
-       jmp LBB26_227   #bb7119
+       je LBB26_227    #bb7119
 LBB26_208:     #cond_true6020
        movl $l31_str14, 4(%esp)

        testl %eax, %eax
-       jne LBB26_704   #cond_true13042
-       jmp LBB26_713   #bb13151
+       je LBB26_713    #bb13151
 LBB26_704:     #cond_true13042
        movl $_str52, 4(%esp)

        cmpl 76(%ecx), %eax
-       jge LBB26_1628  #cond_false63.i.i
-       jmp LBB26_1769  #_Z8makeGridP13mrSurfaceListidiidd.exit.i
+       jl LBB26_1769   #_Z8makeGridP13mrSurfaceListidiidd.exit.i
 LBB26_1628:    #cond_false63.i.i
        movl $0, 48964(%esp)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31100 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:54:00 +00:00
Chris Lattner
9cd6875917 Implement support for branch condition reversal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31099 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:52:40 +00:00
Chris Lattner
2d47bd937c Transform code like: 
jle FOO
  jmp BAR
BAR:

into:

  jle FOO
BAR:

... whoa!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31098 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:43:30 +00:00
Chris Lattner
879d09cf13 Simplify code, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31097 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:42:09 +00:00
Chris Lattner
54108068b7 implement support for inserting a cond branch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31096 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:36:13 +00:00
Chris Lattner
34a84ac81c allow insertion of a conditional branch with fall-through 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31095 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:34:23 +00:00
Chris Lattner
386e29065d Three changes: 
1. Remove a bunch of ifdef'd code.
2. When a block just contains an uncond branch, change all blocks branching
   to it to jump to the destination instead.
3. If branch analysis tells us some edges in the machinecfg are not actually
   possible, remove them.

#2 triggers a suprisingly large number of times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31094 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 05:08:28 +00:00
Chris Lattner
2a445add12 update assert message 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31093 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 04:42:29 +00:00
Chris Lattner
12143054aa Add an experimental cross-jumping implementation. 
This is currently disabled by default and limited in several ways, but does
have a positive effect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31090 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-21 00:47:49 +00:00
Chris Lattner
8ace2cd034 implement MachineOperand::isIdenticalTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31088 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 22:39:59 +00:00
Chris Lattner
9dcbf0dedc llvm-extract should remove module-level asm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31086 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 21:35:41 +00:00
Chris Lattner
5860715e9d bugfix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31074 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 20:44:34 +00:00
Chris Lattner
6734bffe24 Fix an ugly problem in SCCP. This fixes Benchmarks/Misc-C++/mandel-text.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31073 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 20:19:08 +00:00
Chris Lattner
87d8429506 Fix miscompilation of MallocBench/espresso which code review pointed out 
but apparently didn't make it into the final patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31070 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 18:20:21 +00:00
Chris Lattner
34ab4d45d2 Make flag and chain edges visually distinguishable from value edges in DOT 
output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31067 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 18:06:09 +00:00
Chris Lattner
7fbe9723e3 Implement branch analysis/xform hooks required by the branch folding pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31065 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 17:42:20 +00:00
Reid Spencer
b83eb6447b For PR950: 
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 07:07:24 +00:00
Devang Patel
6e7dd9db6b While creating mask, use 1ULL instead of 1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31062 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 01:16:56 +00:00
Chris Lattner
b74b181630 Fix SimplifyCFG/2006-10-19-UncondDiv.ll by disabling a bad xform. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31061 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 00:42:07 +00:00
Chris Lattner
35b89fa639 add a method to determine whether evaluation of a constant can trap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31059 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 00:27:06 +00:00
Bill Wendling
c70ddad2b7 Partially in response to PR926: insert the newly created machine basic 
blocks into the basic block list when lowering the switch inst. into a
binary tree of if-then statements. This allows the "visitSwitchCase" func
to allow for fall-through behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31057 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 21:46:38 +00:00
Devang Patel
002e499650 It is OK to remove extra cast if operation is EQ/NE even though source 
and destination sign may not match but other conditions are met.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31056 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 20:59:13 +00:00
Devang Patel
df308fa7ab Typo Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31055 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 19:21:36 +00:00
Devang Patel
85415ed270 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31054 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 19:05:38 +00:00