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47e32e6b83
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Author SHA1 Message Date
Chris Lattner
47e32e6b83 Split *all* critical edges before isel. This resolves issues with spill code 
being inserted on unsplit critical edges, which introduces (sometimes large
amounts of) partially dead spill code.

This also fixes PR925 + CodeGen/Generic/switch-crit-edge-constant.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31260 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 17:04:37 +00:00
Chris Lattner
49bb78ce9f new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31259 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 17:04:16 +00:00
Chris Lattner
b57de3328d add option to isCriticalEdge 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31258 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:58:17 +00:00
Chris Lattner
0997fadc37 break edges more intelligently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31257 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:45:33 +00:00
Chris Lattner
27e1f90d85 Expose a smarter way to break critical edges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31256 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:44:56 +00:00
Chris Lattner
f6de8ad1a2 SplitCriticalEdge checks to see if an edge is critical, don't check twice 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31255 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:38:14 +00:00
Chris Lattner
6fb6ef4d65 Fix a serious bug that caused any x86 vector stuff to infinite loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31254 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:15:26 +00:00
Evan Cheng
31b6ddad31 Doh. Must check if GV is constant first before putting it in .cstring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31253 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 05:56:51 +00:00
Evan Cheng
71aae62445 Doh. Must check if GV is constant first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31252 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 05:56:06 +00:00
Nick Lewycky
7a2ed81f08 Emitting raw bytecode is awfully rude. Add -disable-output. 
Clarify the test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31251 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 02:34:41 +00:00
Jim Laskey
1fb8e15424 Editorial clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31250 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 01:34:21 +00:00
Chris Lattner
7466ebf045 add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31249 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 01:24:05 +00:00
Chris Lattner
1b9c8e73b5 prepare for a change I'm about to make 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31248 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 00:59:20 +00:00
Chris Lattner
ae2650a9cf don't dist internal readme 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31247 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 00:51:15 +00:00
Chris Lattner
985384c41d don't dist internal readme's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31246 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 00:49:54 +00:00
Chris Lattner
064fdccf98 don't distribute internal readme's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31245 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 00:48:27 +00:00
Reid Spencer
b9112019de Make sure all the readme files get distributed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31244 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 00:11:39 +00:00
Jim Laskey
def69b92e7 Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31243 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 23:52:51 +00:00
Chris Lattner
8c494ab759 Fix a bug in merged condition handling (CodeGen/Generic/2006-10-27-CondFolding.ll). 
Add many fewer CFG edges and PHI node entries.  If there is a switch which has
the same block as multiple destinations, only add that block once as a successor/phi
node (in the jumptable case)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31242 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 23:50:33 +00:00
Chris Lattner
0d824c3fe1 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31241 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 23:47:34 +00:00
Jim Laskey
583bd47f77 Switch over from SelectionNodeCSEMap to FoldingSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31240 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 23:46:08 +00:00
Devang Patel
682f675c86 Use doc_code class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31239 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 23:06:27 +00:00
Jim Laskey
2f6d4c9766 Clean up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31238 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 22:52:02 +00:00
Devang Patel
ca403272f4 Document removeModule(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31237 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 22:02:30 +00:00
Chris Lattner
7a498cbc60 this doesn't occur any more in mason 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31236 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 22:02:19 +00:00
Chris Lattner
4ccf63d8cf the code in question is now: 
cmpw cr0, r7, r3
        ble cr0, LBB1_5 ;bb25
LBB1_8: ;bb17
        cmpw cr0, r8, r5
        bgt cr0, LBB1_2 ;bb

which is just as good as crnand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31235 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 22:00:55 +00:00
Devang Patel
9286cd3e9b Document getAlignment() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31234 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:58:31 +00:00
Chris Lattner
1c9b2f312d remove debug code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31233 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:58:03 +00:00
Chris Lattner
d2f9ee9ea7 Codegen cond&cond with two branches. This compiles (f.e.) PowerPC/and-branch.ll to: 
cmpwi cr0, r4, 4
        bgt cr0, LBB1_2 ;UnifiedReturnBlock
LBB1_3: ;entry
        cmplwi cr0, r3, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

instead of:

        cmpwi cr7, r4, 4
        mfcr r2
        addic r4, r3, -1
        subfe r3, r4, r3
        rlwinm r2, r2, 30, 31, 31
        or r2, r2, r3
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock
LBB1_1: ;cond_true


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31232 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:54:23 +00:00
Chris Lattner
00ef504797 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31231 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:52:39 +00:00
Chris Lattner
571e434a34 Turn conditions like x<Y|z==q into multiple blocks. 
This compiles Regression/CodeGen/X86/or-branch.ll into:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $5, %eax
        jl LBB1_1       #cond_true
LBB1_3: #entry
        testl %ecx, %ecx
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

instead of:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $4, %eax
        setg %al
        testl %ecx, %ecx
        setne %cl
        testb %cl, %al
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

And on ppc to:

        cmpwi cr0, r29, 5
        blt cr0, LBB1_1 ;cond_true
LBB1_3: ;entry
        cmplwi cr0, r30, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

instead of:

        cmpwi cr7, r4, 4
        mfcr r2
        addic r4, r3, -1
        subfe r30, r4, r3
        rlwinm r29, r2, 30, 31, 31
        and r2, r29, r30
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31230 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:36:01 +00:00
Chris Lattner
d0fffc8f29 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31229 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:32:10 +00:00
Evan Cheng
f686d9b71f Fixed a significant bug where unpcklpd is incorrectly used to extract element 1 from a v2f64 value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31228 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:08:32 +00:00
Evan Cheng
8d51a3286f Add a new vextract test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31227 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 21:05:18 +00:00
Bill Wendling
22706e82d5 Forgot a } 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31226 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 20:22:04 +00:00
Bill Wendling
b3d83a3ed5 Re-added the part where it tries to remove all global variables first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31225 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 20:18:06 +00:00
Jim Laskey
2ac33c447d SmallVector append not insert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31224 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 19:38:32 +00:00
Jim Laskey
47ce6b4752 Grrr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31223 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 19:20:12 +00:00
Jim Laskey
788a0c6a18 Temp patch for missing functionality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31222 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 19:14:16 +00:00
Reid Spencer
461076f052 Make the Value and Type methods print a newline so it prints nicely in gdb 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31221 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 18:58:54 +00:00
Evan Cheng
6bdb3f6c8f Fix for PR968: expand vector sdiv, udiv, srem, urem. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31220 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 18:49:08 +00:00
Bill Wendling
160db5d20a MathExtras isn't in the llvm/ADT directory but in the llvm/Support directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31219 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 18:47:29 +00:00
Jim Laskey
18529f3515 Apply editorials. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31218 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 18:05:12 +00:00
Reid Spencer
f5d913409d Improve cvs ignoring of test results. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31217 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 16:43:34 +00:00
Jim Laskey
0e5af195f6 Breakout folding hash set from SelectionDAGCSEMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31215 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 16:16:16 +00:00
Reid Spencer
c50209bf68 Initialize CStringSection member var. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31214 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 16:14:06 +00:00
Reid Spencer
8b93a9c609 Add a run line to this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31211 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-27 05:30:23 +00:00
Evan Cheng
87e0813f03 Change load PatFrag to ignore indexed load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31210 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-26 21:55:50 +00:00
Evan Cheng
5270cf1b77 getPreIndexedLoad -> getIndexedLoad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31209 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-26 21:53:40 +00:00
Evan Cheng
8862ef1481 Indexed load / store changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31208 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-26 21:52:24 +00:00