Chris Lattner
ec3c411de8
Minor comment tweaks
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29226 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-20 19:06:16 +00:00
Devang Patel
d828a4b285
Make it fit into 80 cols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29223 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-20 18:03:39 +00:00
Devang Patel
753d94a1c8
Add new constructor to accept vector of exported names while creating
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InternalizePass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29222 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-20 17:48:05 +00:00
Owen Anderson
10d9d9f27c
Add an assertion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29199 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-19 05:48:45 +00:00
Owen Anderson
2698a08c23
Make LoopUnroll not die on LCSSA Phis. This makes lencod work again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29198 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-19 05:45:14 +00:00
Owen Anderson
db5b9cfd86
Fix a error that hadn't yet cause any problems, but I'm sure it would have
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somewhere down the road.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29197 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-19 03:51:48 +00:00
Chris Lattner
21ba23d0d8
silence warnings in a release build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29189 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-18 21:48:57 +00:00
Evan Cheng
31e773147b
Only reuse a previous IV if it would not require a type conversion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29186 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-18 19:07:58 +00:00
Chris Lattner
27d672136a
eliminate some ugly code, using ConstantExpr::getWithOperands instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29149 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-14 22:21:31 +00:00
Owen Anderson
c1be492f94
Hopefully the final attempt at making IndVars preserve LCSSA.
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This should fix PR 831.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29141 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-14 18:49:15 +00:00
Chris Lattner
262041892d
Revert this patch temporarily until PR831 is fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29134 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-13 19:05:20 +00:00
Chris Lattner
981418bf15
Handle instructions in the map, but that map to a null pointer.
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This unbreaks smg2000.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29127 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-12 21:37:11 +00:00
Owen Anderson
bcfb913df0
IndVars now (correctly) preserves LCSSA form.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29126 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-12 21:29:14 +00:00
Chris Lattner
1bb3a40257
In addition to deleting calls, the inliner can constant fold them as well.
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Handle this case, which doesn't require a new callgraph edge. This fixes
a crash compiling MallocBench/gs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29121 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-12 18:37:18 +00:00
Chris Lattner
d85340f4ec
Change the callgraph representation to store the callsite along with the
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target CG node. This allows the inliner to properly update the callgraph
when using the pruning inliner. The pruning inliner may not copy over all
call sites from a callee to a caller, so the edges corresponding to those
call sites should not be copied over either.
This fixes PR827 and Transforms/Inline/2006-07-12-InlinePruneCGUpdate.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29120 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-12 18:29:36 +00:00
Chris Lattner
ed36b2f1c2
Silence a warning produced in assertions-disabled mode
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29108 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-11 18:31:26 +00:00
Owen Anderson
4a8aadd1f5
Revert my indvars changes because they were breaking things. Unfortunately this
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didn't start showing up until after the recent instcombine fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29102 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-11 07:25:33 +00:00
Owen Anderson
b64ab8769e
Add a comment, and fix a typo that broke the build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29094 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-10 22:15:25 +00:00
Owen Anderson
7e05714a10
Don't indent the entire function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29093 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-10 22:03:18 +00:00
Chris Lattner
6423d4c64a
Recognize 16-bit bswaps by relaxing overconstrained pattern.
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This implements Transforms/InstCombine/bswap.ll:test[34].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29087 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-10 20:25:24 +00:00
Owen Anderson
d1b78a12ef
Make instcombine not remove Phi nodes when LCSSA is live.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29083 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-10 19:03:49 +00:00
Owen Anderson
f8dad7a926
Fix typo in the comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29078 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-09 21:35:40 +00:00
Owen Anderson
e4e1ecd37c
Add a fix for an issue where LCSSA would fail to insert undef's in some corner
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cases. Ideally, this issue will go away in the future as LCSSA gets smarter
about which Phi nodes it inserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29076 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-09 08:14:06 +00:00
Chris Lattner
7cd580f0b7
Fix PR820 and Transforms/GlobalOpt/2006-07-07-InlineAsmCrash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29071 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-07 21:37:01 +00:00
Chris Lattner
9525528a7d
Use hidden visibility to make symbols in an anonymous namespace get
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dropped. This shrinks libllvmgcc.dylib another 67K
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28975 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 23:17:24 +00:00
Chris Lattner
f4b546110c
Shrink libllvmgcc.dylib by another 23K
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28972 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 22:08:15 +00:00
Owen Anderson
372994be25
Switch to a very conservative heuristic for determining when loop-unswitching
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will be profitable. This is mainly to remove some cases where excessive
unswitching would result in long compile times and/or huge generated code.
Once someone comes up with a better heuristic that avoids these cases, this
should be switched out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28962 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 17:47:50 +00:00
Chris Lattner
d228018396
Fix Transforms/InstCombine/2006-06-28-infloop.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28961 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 17:34:50 +00:00
Chris Lattner
daa2bf9a19
Don't unswitch really large loops even if they are mostly filled with empty
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blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28959 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 16:38:55 +00:00
Andrew Lenharth
b8e604c29a
Catch more function pointer casting problems
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Remove the Function pointer cast in these calls, converting it to
a cast of argument.
%tmp60 = tail call int cast (int (ulong)* %str to int (int)*)( int 10 )
%tmp60 = tail call int cast (int (ulong)* %str to int (int)*)( uint %tmp51 )
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28953 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 01:01:52 +00:00
Owen Anderson
bef8508737
Fix for 2006-06-27-DeadSwitchCase.ll
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Be more careful when updating Phi nodes after eliminating dead switch cases. Fix
proposed by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28947 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-27 22:26:09 +00:00
Chris Lattner
92044ce4e9
Fix Transforms/DeadArgElim/2006-06-27-struct-ret.ll. -deadargelim should not
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remove the struct return argument of a csret function, even if it is obviously
dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28943 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-27 21:05:04 +00:00
Owen Anderson
f9b238e93d
De-pessimize the handling of LCSSA Phi nodes in IndVarSimplify. Hopefully this
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will make Shootout-C/nestedloop faster.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28924 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-27 02:17:08 +00:00
Chris Lattner
3c80a51cfd
random code cleanups, no functionality change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28914 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-26 19:10:05 +00:00
Owen Anderson
2b67f07d2b
Make LoopUnswitch able to unswitch loops with live-out values by taking advantage
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of LCSSA. This results several times the number of unswitchings occurring on
tests such and timberwolfmc, unix-tbl, and ldecod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28912 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-26 07:44:36 +00:00
Chris Lattner
eb83f4e6cd
Fix IndVarsSimplify/2006-06-16-Indvar-LCSSA-Crash.ll, a case where a
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"LCSSA" phi node causes indvars to break dominance properties. This fixes
causes indvars to avoid inserting aggressive code in this case, instead
indvars should be fixed to be more aggressive in the face of lcssa phi's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28850 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-17 01:02:31 +00:00
Evan Cheng
fb9d0dce97
Add missing casts. This fixed some regressions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28834 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-16 18:37:15 +00:00
Evan Cheng
21abac2757
More libcall transformations:
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printf("%s\n", str) -> puts(str)
printf("%c", c) -> putchar(c)
Also fixed fprintf(file, "%c", c) -> fputc(c, file)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28815 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-16 08:36:35 +00:00
Evan Cheng
952895243e
Simplify fprintf(file, "%s", str) to fputs(str, file).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28814 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-16 04:52:30 +00:00
Chris Lattner
afe91a5f26
Implement Transforms/InstCombine/bswap.ll, turning common shift/and/or bswap
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idioms into bswap intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28803 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-15 19:07:26 +00:00
Chris Lattner
f7a1212850
Fix Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll, a loop unswitch
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bug exposed by the recent lcssa work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28779 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 04:46:17 +00:00
Chris Lattner
13a68e4257
Use the PotDoms map to memoize 'dominating value' lookup. With this patch,
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LCSSA is still the slowest pass when gccas'ing 252.eon, but now it only takes
39s instead of 289s. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28776 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 01:13:57 +00:00
Owen Anderson
8b92d0cae1
Fix another instance where PHI nodes need special treatment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28774 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 20:50:09 +00:00
Owen Anderson
7be3f1e078
Fix a bug that was causing major slowdowns in povray. This was due to LCSSA
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not handling PHI nodes correctly when determining if a value was live-out.
This patch reduces the number of detected live-out variables in the testcase
from 6565 to 485.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28771 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-13 19:37:18 +00:00
Owen Anderson
6edf399bb4
Reapply my 6/9 changes. The bug Evan saw no longer occurs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28759 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 21:49:21 +00:00
Chris Lattner
7f2e1dd5d4
Fix an infinite loop on Transforms/SimplifyCFG/2006-06-12-InfLoop.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28758 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 20:18:01 +00:00
Owen Anderson
3d2aa47bd3
Fix for 2006-06-26-MultipleExitsSingleBlock.
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If a single exit block has multiple predecessors within the loop, it will
appear in the exit blocks list more than once. LCSSA needs to take that into
account so that it doesn't double process that exit block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28750 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-12 07:10:16 +00:00
Owen Anderson
c2cc15cf9d
Re-commit the safe parts of my 6/9 patch. Still working on fixing the unsafe parts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28748 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-11 19:22:28 +00:00
Evan Cheng
b9b2b309d3
Back out Owen's 6/9 changes. They broke MultiSource/Benchmarks/Prolangs-C/bison (and perhaps others).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28747 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-11 09:32:57 +00:00
Owen Anderson
fcaf345c88
Add LCSSA as a requirement for LoopUnswitch, and assert that LoopUnswitch preserves
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LCSSA.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28739 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 18:40:32 +00:00