Evan Cheng
93467e7fe3
CopyFromReg starts a live range so its use should not be considered a floater.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31356 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 22:17:06 +00:00
Reid Spencer
48d8a70d22
Make ScalarEvolution actually use a ZeroExtend expression instead of
...
having SCZeroExtendExpr be equivalent to SCTruncate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31355 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 21:53:12 +00:00
Chris Lattner
d4bf3c2fd6
give branch folding a simple heuristic to decide which block to split so that
...
it inserts an uncond branch where it is less likely to cause a problem. This
fixes some perf issues on ppc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31354 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 19:36:29 +00:00
Chris Lattner
25de4e5c21
Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chomp
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31352 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 18:03:33 +00:00
Rafael Espindola
560a8d0512
print null values in bss
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31349 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 14:26:44 +00:00
Rafael Espindola
9dca7ad78f
implement zextload bool and truncstore bool
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31348 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 14:13:27 +00:00
Evan Cheng
41349c10cb
Add a printSetLabel that takes two id's.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31347 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 09:23:08 +00:00
Chris Lattner
9c08050ac7
Factor gep instructions through phi nodes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31346 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 07:43:41 +00:00
Chris Lattner
76c7314650
Turn a phi of many loads into a phi of the address and a single load of the
...
result. This can significantly shrink code and exposes identities more
aggressively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31344 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 07:13:54 +00:00
Evan Cheng
acf7f2e3a9
Fix ldmxcsr JIT encoding.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31343 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 06:53:52 +00:00
Chris Lattner
a90a24c623
Fix a bug in the previous patch
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31342 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 04:55:47 +00:00
Chris Lattner
7da52b295b
Fold things like "phi [add (a,b), add(c,d)]" into two phi's and one add.
...
This triggers thousands of times on multisource.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31341 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 04:51:18 +00:00
Evan Cheng
6cc31ae4da
Print jumptable index.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31340 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 04:48:30 +00:00
Reid Spencer
fa8a51e041
Remove unnecessary sign conversions made possible by last patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31339 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 03:45:43 +00:00
Reid Spencer
fe85526713
Fix a bug in the interpreter where divides of unmatched signed operands
...
would fail. E.g. udiv sint X, Y or sdiv uint X, Y would fail to find a
type match in the switch statement and fail the operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31338 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 03:41:05 +00:00
Chris Lattner
1d08d83230
make tail merging more aggressive. If two blocks share a common tail, but the
...
tail is not an entire block for either of them, pick one, split it, then
merge the common part.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31336 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 01:16:12 +00:00
Chris Lattner
d8ccff0c3e
enable branch folding with an option
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31335 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 00:38:31 +00:00
Evan Cheng
2f15c063ba
Add constraints to Instruction class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31332 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 00:26:27 +00:00
Andrew Lenharth
6bbf6b0b65
more shotenning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31331 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 23:46:56 +00:00
Chris Lattner
0ccb500fa7
Compile CodeGen/PowerPC/fp-branch.ll to:
...
_intcoord_cond_next55:
LBB1_3: ;cond_next55
lis r2, ha16(LCPI1_0)
lfs f0, lo16(LCPI1_0)(r2)
fcmpu cr0, f1, f0
blt cr0, LBB1_2 ;cond_next62.exitStub
LBB1_1: ;bb72.exitStub
li r3, 1
blr
LBB1_2: ;cond_next62.exitStub
li r3, 0
blr
instead of:
_intcoord_cond_next55:
LBB1_3: ;cond_next55
lis r2, ha16(LCPI1_0)
lfs f0, lo16(LCPI1_0)(r2)
fcmpu cr0, f1, f0
bge cr0, LBB1_1 ;bb72.exitStub
LBB1_4: ;cond_next55
lis r2, ha16(LCPI1_0)
lfs f0, lo16(LCPI1_0)(r2)
fcmpu cr0, f1, f0
bnu cr0, LBB1_2 ;cond_next62.exitStub
LBB1_1: ;bb72.exitStub
li r3, 1
blr
LBB1_2: ;cond_next62.exitStub
li r3, 0
blr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31330 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 23:06:00 +00:00
Chris Lattner
df19f27d03
look through isunordered to inline it into branch blocks.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31328 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 22:37:42 +00:00
Evan Cheng
63af319c4b
Nuke dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31327 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 21:53:31 +00:00
Chris Lattner
22aaf1d61c
allow the address of a global to be used with the "i" constraint when in
...
-static mode. This implements PR882.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31326 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 20:13:11 +00:00
Chris Lattner
0d92499455
implement the 'c' inline asm modifier character
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31325 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 20:12:30 +00:00
Chris Lattner
efa46ce87b
handle global address constant sdnodes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31323 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 20:01:56 +00:00
Andrew Lenharth
956a431930
Let us play simplify the td file (and fix a few missed sub and mul patterns).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31322 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 19:52:12 +00:00
Chris Lattner
1a60aa7bc1
handle "st" as "st(0)"
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 19:42:44 +00:00
Chris Lattner
53069fbbae
TargetLowering::isOperandValidForConstraint
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31319 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 19:41:18 +00:00
Chris Lattner
dba1aeedd8
Change the prototype for TargetLowering::isOperandValidForConstraint
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31318 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 19:40:43 +00:00
Chris Lattner
cbea67f55b
generalize the fix for PR977 to also fix
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Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31317 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 18:56:48 +00:00
Chris Lattner
1753faee81
Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31315 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 17:52:18 +00:00
Andrew Lenharth
f81173f70e
Add all that branch mangling niftiness
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31313 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 16:49:55 +00:00
Rafael Espindola
b191e0ab51
add support for calling functions when the caller has variable sized objects
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31312 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 13:03:26 +00:00
Anton Korobeynikov
ab4022f196
1. Clean up code due to changes in SwitchTo*Section(2)
...
2. Added partial debug support for mingw\cygwin targets (the same as
Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
for storing debug info by default, thus many (runtime) libraries has
this information included. These formats shouldn't be mixed in one binary
('stabs' & 'DWARF'), otherwise binutils tools will be confused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31311 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 08:31:24 +00:00
Chris Lattner
d03f1581c8
Turn an assert into an error message. This is commonly triggered when
...
we don't support a specific constraint yet. When this happens, print the
unsupported constraint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31310 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 07:33:13 +00:00
Anton Korobeynikov
b52cf1f194
Unbreaking static ctors patch.
...
Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31306 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 06:11:06 +00:00
Evan Cheng
d063189c09
Fix a typo which can break jumptables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31305 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 02:31:00 +00:00
Reid Spencer
090ac3641d
Make this compile again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31304 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 01:45:56 +00:00
Evan Cheng
2e323aa09d
Apply Aton's LLVM patch for PR973: Linux ctors / dtors support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31303 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-31 01:26:55 +00:00
Reid Spencer
0de0c5da42
Fix a problem introduced by a last-minute change (logic negation).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31302 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 23:34:32 +00:00
Chris Lattner
1d75400e2e
fix miscompilation of llvm.isunordered, where we branched on the opposite
...
condition. This fixes miscompilation of Olden/bh and many others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31301 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 23:02:25 +00:00
Reid Spencer
02b8511364
Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4
...
generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31299 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 22:32:30 +00:00
Chris Lattner
6ce644392e
fix wonky indentation
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31298 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 22:27:23 +00:00
Devang Patel
b79a59dcfc
Update comment. Valid option is -debug-pass=Structures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31297 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 19:25:54 +00:00
Jim Laskey
a9c83fe5e1
Switch abbreviations to use the folding set.a.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31296 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 15:59:54 +00:00
Jim Laskey
6519546eda
Simplify DwarfWriter header.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31295 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 13:35:07 +00:00
Evan Cheng
c35497fc2a
All targets expand BR_JT for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31294 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 08:02:39 +00:00
Evan Cheng
3d4ce11085
Lower jumptable to BR_JT. The legalizer can lower it to a BRIND or let the target custom lower it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31293 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 08:00:44 +00:00
Evan Cheng
c41cd9c391
Added a new SDNode type: BR_JT for jumptable branch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31292 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-30 07:59:36 +00:00
Chris Lattner
23d7b36117
add a highly efficient hash table that is specialized for mapping C strings
...
to some other type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31286 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 23:42:03 +00:00
Chris Lattner
9f617d64c5
Add a new llvm::Allocator abstraction, which will be used by a container
...
I'm about to add. This is similar to, but necessarily different than, the
STL allocator class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31285 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 22:08:03 +00:00
Chris Lattner
120bc21576
Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31284 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 21:21:20 +00:00
Chris Lattner
6b0e3f8907
Make CanFallThrough more intelligent (so it can handle blocks with (e.g.) no
...
successors), and make island block movement more general.
This compiles CodeGen/X86/2006-04-27-ISelFoldingBug.ll to:
_loadAndRLEsource_no_exit_2E_1_label_2E_0:
subl $8, %esp
movl %esi, 4(%esp)
movl %ebx, (%esp)
movl 16(%esp), %eax
movl 12(%esp), %ecx
LBB1_3: #label.0
movl _last, %edx
movl %edx, %esi
incl %esi
movl %esi, _last
movl %ecx, %ebx
# TRUNCATE movb %bl, %bl
movl _block, %esi
movb %bl, 1(%esi,%edx)
cmpl %eax, _last
jge LBB1_2 #codeRepl5.exitStub
LBB1_4: #label.0
cmpl $257, %ecx
je LBB1_2 #codeRepl5.exitStub
LBB1_1: #label.0.no_exit.1_crit_edge.exitStub
movl $1, %eax
movl (%esp), %ebx
movl 4(%esp), %esi
addl $8, %esp
ret
LBB1_2: #codeRepl5.exitStub
xorl %eax, %eax
movl (%esp), %ebx
movl 4(%esp), %esi
addl $8, %esp
ret
instead of:
_loadAndRLEsource_no_exit_2E_1_label_2E_0:
subl $8, %esp
movl %esi, 4(%esp)
movl %ebx, (%esp)
movl 16(%esp), %eax
movl 12(%esp), %ecx
jmp LBB1_3 #label.0
LBB1_1: #label.0.no_exit.1_crit_edge.exitStub
movl $1, %eax
movl (%esp), %ebx
movl 4(%esp), %esi
addl $8, %esp
ret
LBB1_2: #codeRepl5.exitStub
xorl %eax, %eax
movl (%esp), %ebx
movl 4(%esp), %esi
addl $8, %esp
ret
LBB1_3: #label.0
movl _last, %edx
movl %edx, %esi
incl %esi
movl %esi, _last
movl %ecx, %ebx
# TRUNCATE movb %bl, %bl
movl _block, %esi
movb %bl, 1(%esi,%edx)
cmpl %eax, _last
jge LBB1_2 #codeRepl5.exitStub
LBB1_4: #label.0
cmpl $257, %ecx
jne LBB1_1 #label.0.no_exit.1_crit_edge.exitStub
jmp LBB1_2 #codeRepl5.exitStub
... which is much better layout :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31282 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 21:05:41 +00:00
Chris Lattner
6a586c8d9a
fix Generic/2006-10-29-Crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31281 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 21:01:20 +00:00
Chris Lattner
5a145f0094
Fix a load folding issue that Evan noticed: there is no need to export values
...
used by comparisons in the main block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 18:23:37 +00:00
Jim Laskey
a97c67c866
Try again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31278 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 09:19:59 +00:00
Jim Laskey
d8cb446aa2
Not handling zero length strings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31277 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 08:27:07 +00:00
Evan Cheng
ba726ab3ec
VLOAD is not the LoadSDNode opcode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31276 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 06:14:47 +00:00
Nick Lewycky
f6aaaaa39e
Remove spurious case. EXTLOAD is not one of the node opcodes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31275 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-29 02:26:30 +00:00
Chris Lattner
bad7f48c70
split critical edges more carefully and intelligently. In particular, critical
...
edges whose destinations are not phi nodes don't bother us. Also, share
split edges, since the split edge can't have a phi. This significantly
reduces the complexity of generated code in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31274 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 19:22:10 +00:00
Chris Lattner
6acfe12dd6
Teach branch folding to fold identical jump tables together and to delete
...
jump tables that are dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31273 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 18:34:47 +00:00
Chris Lattner
a4eb44a285
const'ify jump table stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31269 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 18:17:09 +00:00
Chris Lattner
e7251a0377
add an assert
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31267 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 18:11:20 +00:00
Chris Lattner
0737188220
don't print dead jump tables
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31266 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 18:10:06 +00:00
Chris Lattner
ef13982aa7
implement the BlockHasNoFallThrough hook
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 17:35:02 +00:00
Chris Lattner
cf420cca57
improve deletion of blocks that just contain branches by knowing that
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the pred block doesn't fall through into them if it's a jumptable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31263 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 17:32:47 +00:00
Chris Lattner
c24ff8ed12
add another target hook for branch folding.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31262 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 17:29:57 +00:00
Jim Laskey
1c6f01aaa5
Load and stores have not been uniqued properly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31261 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 17:25:28 +00:00
Chris Lattner
47e32e6b83
Split *all* critical edges before isel. This resolves issues with spill code
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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
b57de3328d
add option to isCriticalEdge
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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
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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.
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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
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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
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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.
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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.
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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
Chris Lattner
7466ebf045
add a method
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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
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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
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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
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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
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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.
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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.
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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).
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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
Jim Laskey
583bd47f77
Switch over from SelectionNodeCSEMap to FoldingSet.
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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
Chris Lattner
7a498cbc60
this doesn't occur any more in mason
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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:
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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
Chris Lattner
1c9b2f312d
remove debug code
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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:
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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
571e434a34
Turn conditions like x<Y|z==q into multiple blocks.
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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
Evan Cheng
f686d9b71f
Fixed a significant bug where unpcklpd is incorrectly used to extract element 1 from a v2f64 value.
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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
Jim Laskey
2ac33c447d
SmallVector append not insert.
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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.
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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.
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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
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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.
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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.
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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.
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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
Jim Laskey
0e5af195f6
Breakout folding hash set from SelectionDAGCSEMap.
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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.
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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
Evan Cheng
87e0813f03
Change load PatFrag to ignore indexed load.
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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.
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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
80aa9a122f
Place cstrings in .cstring section.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31207 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 21:48:57 +00:00
Evan Cheng
abf6345710
Speed up isCString()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31206 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 21:48:03 +00:00
Reid Spencer
811b0cbd6e
Simplify code a bit by changing instances of:
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InsertNewInstBefore(new CastInst(Val, ValTy, Val->GetName()), I)
into:
InsertCastBefore(Val, ValTy, I)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31204 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 19:19:06 +00:00
Evan Cheng
8910c1cacb
Put cstrings in .cstring section when compiling for Mac OS X.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31203 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 19:18:18 +00:00
Evan Cheng
22c7030a0c
Add isCString() - returns true if a ConstantArray is a CString.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31201 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 19:15:05 +00:00
Chris Lattner
4d3839ded2
Fix Transforms/InstCombine/2006-10-26-VectorReassoc.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31200 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 18:27:26 +00:00
Chris Lattner
2e1c196470
Add isFPOrFPVector() method, which indicates if a type is either FP or a
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vector of FP types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31198 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 18:22:45 +00:00
Rafael Espindola
7ae68ab3bc
initial support for frame pointers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31197 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 13:31:26 +00:00
Reid Spencer
72ddc211e9
Enclose a case in { and } so that the pickier compilers don't complain.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31196 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 06:17:40 +00:00
Reid Spencer
1628cec4d7
For PR950:
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Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31195 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 06:15:43 +00:00
Nick Lewycky
7043d00750
Fix 2006-10-25-AddSetCC. A relational operator (like setlt) can never
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produce an EQ property.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31193 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 02:35:18 +00:00
Reid Spencer
b43f00b3f5
Make the makefile tell us when Intrinsics.gen is being updated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31191 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-26 01:42:23 +00:00
Nick Lewycky
e63bf95a32
Resurrect r1.25.
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Fix and comment the "or", "and" and "xor" transformations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31189 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 23:48:24 +00:00
Chris Lattner
c2e91e34dc
simplify code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31188 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 22:21:37 +00:00
Evan Cheng
9eca5e814d
During vector shuffle lowering, we sometimes commute a vector shuffle to try
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to match MOVL (movss, movsd, etc.). Don't forget to commute it back and try
unpck* and shufp* if that doesn't pan out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31186 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 21:49:50 +00:00
Evan Cheng
009073d839
X86ISD::PEXTRW 3rd operand type is always target pointer type.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31185 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 21:35:05 +00:00
Chris Lattner
b67e8f2263
hide symbols properly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31184 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 21:14:31 +00:00
Evan Cheng
9bbbb98a60
Remove -disable-x86-shuffle-opti
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31183 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 20:48:19 +00:00
Chris Lattner
323ece6fcd
turn off tail merging for now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31180 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 18:08:50 +00:00
Chris Lattner
13a04125df
be more aggressive about matching identical instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31179 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-25 18:08:14 +00:00
Devang Patel
f9c197e022
Move getPreferredAlignmentLog from AsmPrinter to TargetData
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31171 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 20:32:14 +00:00
Rafael Espindola
0e5e3aacbe
expand ISD::VACOPY
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31170 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 20:15:21 +00:00
John Criswell
2f6a8b15ef
Removed extraneous semi-colon; this was prevening the grammar file from
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bison'ing correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31169 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 19:09:48 +00:00
Chris Lattner
2452595927
visitSwitchCase knows how to insert conditional branches well. Change
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visitBr to just call visitSwitchCase, eliminating duplicate logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31167 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 18:07:37 +00:00
Chris Lattner
57ab65972e
Generalize CaseBlock a bit more:
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Rename LHSBB/RHSBB to TrueBB/FalseBB. Allow the RHS value to be null,
in which case the LHS is treated as a bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31166 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 17:57:59 +00:00
Chris Lattner
bacf9f4888
Fix CodeGen/IA64/ret-0.ll, which has apparently been broken since some of the
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isel changes happened months ago.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31164 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 17:09:43 +00:00
Rafael Espindola
3d7d39ab15
fix warning about missing newline at end of file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31162 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 17:07:11 +00:00
Chris Lattner
7b248d9866
generalize 'CaseBlock'. It really allows any comparison to be inserted.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31161 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 17:03:35 +00:00
Chris Lattner
578e64a041
implement uncond branch insertion, mark branches with isBranch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31160 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 16:47:57 +00:00
Chris Lattner
11533e2236
implement uncond branch insertion for the branch folding pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31159 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 16:44:55 +00:00
Chris Lattner
0476b28525
implement uncond branch insertion so alpha works work branchfolding.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31158 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 16:41:36 +00:00
Chris Lattner
e87146ace8
implement uncond branch insertion for sparc to fix regressions from last night
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due to branchfolding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31157 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 16:39:19 +00:00
Chris Lattner
cf10391a72
new bad case
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31156 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 16:12:47 +00:00
Jim Laskey
62d07d6ace
Don't do dead block elimination in fast mode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31155 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 16:11:49 +00:00
Jim Laskey
e719d9f8f2
LinearScanner hotspot.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31153 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 14:35:25 +00:00
Jim Laskey
fcc1d9473e
Tighter data structure for deleted debug labels.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31152 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 11:50:43 +00:00
Chris Lattner
ae5d51c9c9
Fix Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31151 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 06:26:32 +00:00
Chris Lattner
7d09784d3f
move single basic blocks that are neither fallen into nor fall out of into
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a place more useful. In particular, if we can put them in a place where code
will be able to fall into it, do so. Otherwise, put it in a place it can fall
through into a successor. Otherwise, if preventing a fallthrough, move to the
end of the function, out of the way.
This deletes several hundred unconditional branches from spass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31149 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 01:12:32 +00:00
Chris Lattner
e90c53756e
Add intrinsics for the rest of the DCB* instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31148 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 01:08:42 +00:00
Chris Lattner
ef2aa193d6
Revert back to r1.21, which was the last revision of predsimplify that
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passes llvm-gcc bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31146 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 00:36:21 +00:00
Chris Lattner
c585a3f62a
add moveBefore/moveAfter helper methods
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31145 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 00:02:26 +00:00
Chris Lattner
a4bcfe12d1
Enable tail merging by default.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31140 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-23 22:10:12 +00:00
Rafael Espindola
c391d16b49
implement STRB and STRH
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31138 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-23 20:34:27 +00:00
Rafael Espindola
d8ed7f8cde
expand ISD::MEMSET
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31137 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-23 20:08:22 +00:00
Andrew Lenharth
12711dfb16
Make these hack flags hidden, like other dsa hack flags
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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
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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
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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:
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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