Commit Graph

8118 Commits

Author SHA1 Message Date
Benjamin Kramer
11b4c952a6 Remove unused copy of UpdateInlinedAtInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134720 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-08 19:32:06 +00:00
Devang Patel
2cf158ec4b Refactor. It is inliner's responsibility to update line number information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-08 18:01:31 +00:00
Lang Hames
1fb0955cab Make GVN look through extractvalues for recognised intrinsics. GVN can then CSE ops that match values produced by the intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134677 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-08 01:50:54 +00:00
Devang Patel
a4acb008cb Use DBG_VALUE location while inserting DBG_VALUE during alloca promotion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134568 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07 00:05:58 +00:00
Jakub Staszak
447c40c402 Fix a bug in the "expect" intrinsic lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134566 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 23:50:16 +00:00
Devang Patel
4fd3c5957e Handle cases where multiple dbg.declare and dbg.value intrinsics are tied to one alloca.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134549 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 22:06:11 +00:00
Devang Patel
231a5ab746 Simplify. Consolidate dbg.declare handling in AllocaPromoter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 21:09:55 +00:00
Andrew Trick
17f91d21a7 indvars -disable-iv-rewrite: ExprToMap lives in Pass data, so be more
careful about referencing values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 21:07:10 +00:00
Andrew Trick
037d1c0c7e indvars -disable-iv-rewrite: Added SimplifyCongruentIVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134530 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 20:50:43 +00:00
Tobias Grosser
a3574fb7e5 LICM: Remove trailing white spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 19:20:02 +00:00
Tobias Grosser
df7102b7d6 LICM: Do not loose alignment on promotion
The promotion code lost any alignment information, when hoisting loads and
stores out of the loop. This lead to incorrect aligned memory accesses. We now
use the largest alignment we can prove to be correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134520 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 19:19:55 +00:00
Jakub Staszak
9da9934e27 Introduce "expect" intrinsic instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134516 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 18:22:43 +00:00
Devang Patel
c5ecbdc189 Preserve debug loc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134441 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-05 21:48:22 +00:00
Andrew Trick
e0dc2faaa0 indvars -disable-iv-rewrite: avoid multiple IVs in weird cases.
Putting back the helper that I removed on 7/1 to do this right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134423 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-05 18:19:39 +00:00
Benjamin Kramer
fc87cdc1f4 PR10267: Don't combine an equality compare with an AND into an inequality compare when the AND has more than one use.
This can pessimize code, inequalities are generally more expensive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-04 20:16:36 +00:00
Andrew Trick
4b02915386 indvars -disable-iv-rewrite: bug fix involving weird geps and related cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134306 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-02 02:34:25 +00:00
Owen Anderson
f1ac465b67 Generalize @llvm.ctlz, @llvm.cttz, and @llvm.ctpop to work on vectors of integers, and fix the one optimization pass that I'm aware of that needs updating for this. At least one current target, ARM NEON, can implement these operations on vectors directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134265 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01 21:52:38 +00:00
Nick Lewycky
394d1f1948 Fix likely typo, reduce number of instruction name collisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-01 06:27:03 +00:00
Rafael Espindola
77a2c372fa Add r134057 back, but splice the predecessor after the successors phi
nodes.

Original message:
Let simplify cfg simplify bb with only debug and lifetime intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134182 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 20:14:24 +00:00
Andrew Trick
6e0ce24e0c indvars -disable-iv-rewrite: handle cloning binary operators that cannot overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134177 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 19:02:17 +00:00
Andrew Trick
60ac719c85 indvars -disable-iv-rewrite: handle an edge case involving identity phis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-30 01:27:23 +00:00
Andrew Trick
cc359d9fa2 indvars -disable-iv-rewrite: insert new trunc instructions carefully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29 23:03:57 +00:00
Chad Rosier
ce77aa3edc Temporarily revert r134057: "Let simplify cfg simplify bb with only debug and
lifetime intrinsics" due to buildbot failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134071 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29 16:22:11 +00:00
Rafael Espindola
0fb7dcd48f Let simplify cfg simplify bb with only debug and lifetime intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29 05:25:47 +00:00
Andrew Trick
11745d4c02 indvars -disable-iv-rewrite: just because SCEV ignores casts doesn't
mean they can be removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-29 03:13:40 +00:00
Andrew Trick
99a92f67c7 cleanup: misleading comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 16:45:04 +00:00
Andrew Trick
5e7645be4c SCEVExpander: give new insts a name that identifies the reponsible pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133992 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 05:07:32 +00:00
Andrew Trick
a5d950f673 whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133991 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 05:04:16 +00:00
Nick Lewycky
89991d4413 Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133990 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 03:57:31 +00:00
Andrew Trick
56caa09808 indvars --disable-iv-rewrite: sever ties with IVUsers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 03:01:46 +00:00
Andrew Trick
15832f6177 indvars --disable-iv-rewrite: Defer evaluating s/zext until SCEV
evaluates all other IV exprs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133982 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28 02:49:20 +00:00
Andrew Trick
156d460c75 indvars -disable-iv-rewrite: run RLEV after SimplifyIVUsers for
a bit more control over the order SCEVs are evaluated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133959 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27 23:17:44 +00:00
Jakub Staszak
f227b50a8e Calculate GetBestDestForJumpOnUndef correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133946 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27 21:51:12 +00:00
Nick Lewycky
9174d5c738 Teach one piece of scalarrepl to handle lifetime markers. When transforming an
alloca that only holds a copy of a global and we're going to replace the users
of the alloca with that global, just nuke the lifetime intrinsics. Part of
PR10121.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133905 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27 05:40:02 +00:00
Nick Lewycky
99e0b2a8df Move onlyUsedByLifetimeMarkers to ValueTracking so that it can be used by other
passes as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133904 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27 04:20:45 +00:00
Eli Friedman
00805fae5b PR10180: Fix a instcombine crash with FP vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 20:40:23 +00:00
Jay Foad
95c3e48f95 Reinstate r133513 (reverted in r133700) with an additional fix for a
-Wshorten-64-to-32 warning in Instructions.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 09:09:15 +00:00
Eric Christopher
e59fbc04ad Revert r133513:
"Reinstate r133435 and r133449 (reverted in r133499) now that the clang
self-hosted build failure has been fixed (r133512)."

Due to some additional warnings.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133700 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 06:24:52 +00:00
Devang Patel
a098bf1239 Set debug loc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133636 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22 19:52:36 +00:00
Jay Foad
267010864e Replace the existing forms of ConstantArray::get() with a single form
that takes an ArrayRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-22 09:24:39 +00:00
Andrew Trick
4417e537b6 IVUsers no longer needs to record the phis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 15:43:52 +00:00
Benjamin Kramer
9ee714789e Remove unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133514 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 14:58:30 +00:00
Jay Foad
cd35e09a4a Reinstate r133435 and r133449 (reverted in r133499) now that the clang
self-hosted build failure has been fixed (r133512).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133513 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 10:33:19 +00:00
Jay Foad
69254f67a5 Don't use PN->replaceUsesOfWith() to change a PHINode's incoming blocks,
because it won't work after my phi operand changes, because the incoming
blocks will no longer be Uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133512 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 10:02:43 +00:00
Andrew Trick
2fabd464ae indvars -disable-iv-rewrite: Adds support for eliminating identity
ops.

This is a rewrite of the IV simplification algorithm used by
-disable-iv-rewrite. To avoid perturbing the default mode, I
temporarily split the driver and created SimplifyIVUsersNoRewrite. The
idea is to avoid doing opcode/pattern matching inside
IndVarSimplify. SCEV already does it. We want to optimize with the
full generality of SCEV, but optimize def-use chains top down on-demand rather
than rewriting the entire expression bottom-up. This was easy to do
for operations that SCEV can prove are identity function. So we're now
eliminating bitmasks and zero extends this way.

A result of this rewrite is that indvars -disable-iv-rewrite no longer
requires IVUsers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133502 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 03:22:38 +00:00
Chad Rosier
a88a0ca808 Revert r133435 and r133449 to appease buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133499 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 02:09:03 +00:00
Dan Gohman
c4bcd4d964 Completely short-circuit out ARC optimization if the ARC runtime
functions do not appear in the module.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20 23:20:43 +00:00
Jay Foad
72f5f313d8 Change how PHINodes store their operands.
Change PHINodes to store simple pointers to their incoming basic blocks,
instead of full-blown Uses.

Note that this loses an optimization in SplitCriticalEdge(), because we
can no longer walk the use list of a BasicBlock to find phi nodes. See
the comment I removed starting "However, the foreach loop is slow for
blocks with lots of predecessors".

Extend replaceAllUsesWith() on a BasicBlock to also update any phi
nodes in the block's successors. This mimics what would have happened
when PHINodes were proper Users of their incoming blocks. (Note that
this only works if OldBB->replaceAllUsesWith(NewBB) is called when
OldBB still has a terminator instruction, so it still has some
successors.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133435 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20 14:38:01 +00:00
Jay Foad
c137120bb0 Make better use of the PHINode API.
Change various bits of code to make better use of the existing PHINode
API, to insulate them from forthcoming changes in how PHINodes store
their operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133434 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20 14:18:48 +00:00
Chris Lattner
b065b06c12 Revamp the "ConstantStruct::get" methods. Previously, these were scattered
all over the place in different styles and variants.  Standardize on two
preferred entrypoints: one that takes a StructType and ArrayRef, and one that
takes StructType and varargs.

In cases where there isn't a struct type convenient, we now add a
ConstantStruct::getAnon method (whose name will make more sense after a few
more patches land).  

It would be "really really nice" if the ConstantStruct::get and 
ConstantVector::get methods didn't make temporary std::vectors.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133412 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20 04:01:31 +00:00