oota-llvm.git
16 years agoDoc updates/edits, contributed by Terence Parr!
Chris Lattner [Thu, 24 Apr 2008 05:59:56 +0000 (05:59 +0000)]
Doc updates/edits, contributed by Terence Parr!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50205 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agocode restructuring, not functionality change.
Chris Lattner [Thu, 24 Apr 2008 00:21:50 +0000 (00:21 +0000)]
code restructuring, not functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50203 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDon't replace multiple result of calls with undef,
Chris Lattner [Thu, 24 Apr 2008 00:19:54 +0000 (00:19 +0000)]
Don't replace multiple result of calls with undef,
sccp tracks getresult values, not call values in this
case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50202 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agocode cleanup, no functionality change.
Chris Lattner [Thu, 24 Apr 2008 00:16:28 +0000 (00:16 +0000)]
code cleanup, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50201 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoSplit some code out of the main SimplifyCFG loop into its own function.
Chris Lattner [Thu, 24 Apr 2008 00:01:19 +0000 (00:01 +0000)]
Split some code out of the main SimplifyCFG loop into its own function.
Fix said code to handle merging return instructions together correctly
when handling multiple return values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50199 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMake these variables static.
Dan Gohman [Wed, 23 Apr 2008 23:15:23 +0000 (23:15 +0000)]
Make these variables static.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50196 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDisable building of llvm2cpp. The directory will be removed before 2.3 release.
Anton Korobeynikov [Wed, 23 Apr 2008 22:46:24 +0000 (22:46 +0000)]
Disable building of llvm2cpp. The directory will be removed before 2.3 release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50193 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDrop dead includes
Anton Korobeynikov [Wed, 23 Apr 2008 22:44:03 +0000 (22:44 +0000)]
Drop dead includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50192 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix tests due to llvm2cpp move to llc target
Anton Korobeynikov [Wed, 23 Apr 2008 22:41:53 +0000 (22:41 +0000)]
Fix tests due to llvm2cpp move to llc target

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50191 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdjust option names for C++ backend
Anton Korobeynikov [Wed, 23 Apr 2008 22:37:03 +0000 (22:37 +0000)]
Adjust option names for C++ backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50190 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFirst step of implementing PR1538: move llvm2cpp logic to new 'target'
Anton Korobeynikov [Wed, 23 Apr 2008 22:29:24 +0000 (22:29 +0000)]
First step of implementing PR1538: move llvm2cpp logic to new 'target'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50189 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoInitial CBE support for multiple return values.
Dan Gohman [Wed, 23 Apr 2008 21:49:29 +0000 (21:49 +0000)]
Initial CBE support for multiple return values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50187 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agotighten up verifier checks which missed cases where
Chris Lattner [Wed, 23 Apr 2008 20:33:41 +0000 (20:33 +0000)]
tighten up verifier checks which missed cases where
return instrs operands didn't match up with function results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50182 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse isa instead of dyn_cast.
Dan Gohman [Wed, 23 Apr 2008 20:25:16 +0000 (20:25 +0000)]
Use isa instead of dyn_cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50181 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd support to codegen for getresult instructions with undef operands.
Dan Gohman [Wed, 23 Apr 2008 20:21:29 +0000 (20:21 +0000)]
Add support to codegen for getresult instructions with undef operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50180 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoCheck type instead of no. of operands.
Devang Patel [Wed, 23 Apr 2008 20:18:29 +0000 (20:18 +0000)]
Check type instead of no. of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50179 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAllow llvm-as to parse a getresult with an undef operand.
Dan Gohman [Wed, 23 Apr 2008 20:11:27 +0000 (20:11 +0000)]
Allow llvm-as to parse a getresult with an undef operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50175 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRewrite previous patch to suit Chris's preference.
Dale Johannesen [Wed, 23 Apr 2008 18:34:37 +0000 (18:34 +0000)]
Rewrite previous patch to suit Chris's preference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50174 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUnbreak JIT
Anton Korobeynikov [Wed, 23 Apr 2008 18:26:03 +0000 (18:26 +0000)]
Unbreak JIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50173 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDisable stack realignment for these tests
Anton Korobeynikov [Wed, 23 Apr 2008 18:25:44 +0000 (18:25 +0000)]
Disable stack realignment for these tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50172 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix test becase ABI stack alignment dropped to 'normal' value
Anton Korobeynikov [Wed, 23 Apr 2008 18:25:16 +0000 (18:25 +0000)]
Fix test becase ABI stack alignment dropped to 'normal' value

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50171 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix test, instruction count is valid only if stack is not realigned
Anton Korobeynikov [Wed, 23 Apr 2008 18:24:48 +0000 (18:24 +0000)]
Fix test, instruction count is valid only if stack is not realigned

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50170 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix typo
Anton Korobeynikov [Wed, 23 Apr 2008 18:24:25 +0000 (18:24 +0000)]
Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50169 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoOnly allow increase of max alignment value
Anton Korobeynikov [Wed, 23 Apr 2008 18:23:50 +0000 (18:23 +0000)]
Only allow increase of max alignment value

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50168 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoBe over-conservative: scan for all used virtual registers and calculate maximal stack...
Anton Korobeynikov [Wed, 23 Apr 2008 18:23:30 +0000 (18:23 +0000)]
Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50167 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd X86 Maximal Stack Alignment Calculator Pass before RA
Anton Korobeynikov [Wed, 23 Apr 2008 18:23:05 +0000 (18:23 +0000)]
Add X86 Maximal Stack Alignment Calculator Pass before RA

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50166 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd facility for pre-RA passes
Anton Korobeynikov [Wed, 23 Apr 2008 18:22:28 +0000 (18:22 +0000)]
Add facility for pre-RA passes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50165 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse precomputed value, if any
Anton Korobeynikov [Wed, 23 Apr 2008 18:21:50 +0000 (18:21 +0000)]
Use precomputed value, if any

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50164 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDo proper book-keeping of offsets and prologue/epilogue code for stack realignment
Anton Korobeynikov [Wed, 23 Apr 2008 18:21:27 +0000 (18:21 +0000)]
Do proper book-keeping of offsets and prologue/epilogue code for stack realignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50163 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoIf stack realignment is used - incoming args will use EBP as base register and locals...
Anton Korobeynikov [Wed, 23 Apr 2008 18:21:02 +0000 (18:21 +0000)]
If stack realignment is used - incoming args will use EBP as base register and locals - ESP

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50162 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoEastimate required stack alignment early, so we can decide, whether we will need...
Anton Korobeynikov [Wed, 23 Apr 2008 18:20:17 +0000 (18:20 +0000)]
Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50161 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoCleanup
Anton Korobeynikov [Wed, 23 Apr 2008 18:19:47 +0000 (18:19 +0000)]
Cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50160 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoCleanup
Anton Korobeynikov [Wed, 23 Apr 2008 18:19:23 +0000 (18:19 +0000)]
Cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50159 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoSimplify
Anton Korobeynikov [Wed, 23 Apr 2008 18:18:36 +0000 (18:18 +0000)]
Simplify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50158 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMake stack alignment options global for all targets
Anton Korobeynikov [Wed, 23 Apr 2008 18:18:10 +0000 (18:18 +0000)]
Make stack alignment options global for all targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50157 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoProvide option for enabling-disabling stack realignment
Anton Korobeynikov [Wed, 23 Apr 2008 18:17:11 +0000 (18:17 +0000)]
Provide option for enabling-disabling stack realignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50156 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDisable stack realignment for functions with dynamic-sized alloca's
Anton Korobeynikov [Wed, 23 Apr 2008 18:16:43 +0000 (18:16 +0000)]
Disable stack realignment for functions with dynamic-sized alloca's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50155 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoProvide ABI-correct stack alignment
Anton Korobeynikov [Wed, 23 Apr 2008 18:16:16 +0000 (18:16 +0000)]
Provide ABI-correct stack alignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50154 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoProvide convenient helpers for some operations
Anton Korobeynikov [Wed, 23 Apr 2008 18:15:48 +0000 (18:15 +0000)]
Provide convenient helpers for some operations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50153 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoWhitespace cleanup
Anton Korobeynikov [Wed, 23 Apr 2008 18:15:11 +0000 (18:15 +0000)]
Whitespace cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50152 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix some whitespace.
Dan Gohman [Wed, 23 Apr 2008 17:50:15 +0000 (17:50 +0000)]
Fix some whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50151 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse the Create static method for some of these objects. They no longer
Bill Wendling [Wed, 23 Apr 2008 07:13:17 +0000 (07:13 +0000)]
Use the Create static method for some of these objects. They no longer
have public constructors. This should fix PR2246.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50145 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agosimplify code for propagation of constant arguments into
Chris Lattner [Wed, 23 Apr 2008 06:16:27 +0000 (06:16 +0000)]
simplify code for propagation of constant arguments into
callees.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50142 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix a number of bugs in ipconstantprop, simplify the code, fit in 80 cols,
Chris Lattner [Wed, 23 Apr 2008 05:59:23 +0000 (05:59 +0000)]
Fix a number of bugs in ipconstantprop, simplify the code, fit in 80 cols,
fix read after free bug (PR2238).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50141 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRewrite multiple return value handling in SCCP. Before, the -sccp pass
Chris Lattner [Wed, 23 Apr 2008 05:38:20 +0000 (05:38 +0000)]
Rewrite multiple return value handling in SCCP.  Before, the -sccp pass
would turn every getresult instruction into undef.  This helps with
rdar://5778210

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50140 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoregenerate
Chris Lattner [Wed, 23 Apr 2008 05:37:08 +0000 (05:37 +0000)]
regenerate

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50139 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoValidate that the result of a function type is valid using shared
Chris Lattner [Wed, 23 Apr 2008 05:36:58 +0000 (05:36 +0000)]
Validate that the result of a function type is valid using shared
logic with vmcore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50138 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoEnforce that multiple return values have to have at least one result.
Chris Lattner [Wed, 23 Apr 2008 05:36:34 +0000 (05:36 +0000)]
Enforce that multiple return values have to have at least one result.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50137 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoremove this testcase. It isn't testing loop rotate, it is testing all
Chris Lattner [Wed, 23 Apr 2008 05:36:04 +0000 (05:36 +0000)]
remove this testcase.  It isn't testing loop rotate, it is testing all
of -std-compile-opts and is now failing because other passes are generating
IR that looks different to input of loop rotate.  Devang, please
introduce a testcase that only runs loop rotate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50136 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoreturning an empty multiple return list is not valid.
Chris Lattner [Wed, 23 Apr 2008 05:29:14 +0000 (05:29 +0000)]
returning an empty multiple return list is not valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50135 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofix description of 'ret' to be more correct with multiple return
Chris Lattner [Wed, 23 Apr 2008 04:59:35 +0000 (04:59 +0000)]
fix description of 'ret' to be more correct with multiple return
values.  Clarify that it is impossible to 'multiply return' a
struct with zero elements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50131 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAllow undef as an operand to getresult.
Chris Lattner [Wed, 23 Apr 2008 04:06:52 +0000 (04:06 +0000)]
Allow undef as an operand to getresult.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50130 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoVerify that the operand of a getresult instruction is a
Chris Lattner [Wed, 23 Apr 2008 04:06:15 +0000 (04:06 +0000)]
Verify that the operand of a getresult instruction is a
call/invoke or undef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50129 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomake this test more interesting.
Chris Lattner [Wed, 23 Apr 2008 03:49:32 +0000 (03:49 +0000)]
make this test more interesting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50128 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agodistill down the essense of this test.
Chris Lattner [Wed, 23 Apr 2008 03:03:42 +0000 (03:03 +0000)]
distill down the essense of this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50125 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agonew test
Dale Johannesen [Wed, 23 Apr 2008 01:22:22 +0000 (01:22 +0000)]
new test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50123 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDo not change the type of a ByVal argument to a
Dale Johannesen [Wed, 23 Apr 2008 01:03:05 +0000 (01:03 +0000)]
Do not change the type of a ByVal argument to a
type of a different size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50121 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDon't do: "(X & 4) >> 1 == 2 --> (X & 4) == 4" if there are more than one uses of...
Evan Cheng [Wed, 23 Apr 2008 00:38:06 +0000 (00:38 +0000)]
Don't do: "(X & 4) >> 1 == 2  --> (X & 4) == 4" if there are more than one uses of the shift result.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50118 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoStart doing the significantly useful part of jump threading: handle cases
Chris Lattner [Tue, 22 Apr 2008 21:40:39 +0000 (21:40 +0000)]
Start doing the significantly useful part of jump threading: handle cases
where a comparison has a phi input and that phi is a constant.  For example,
stuff like:

  Threading edge through bool from 'bb2149' to 'bb2231' with cost: 1, across block:
bb2237: ; preds = %bb2231, %bb2149
%tmp2328.rle = phi i32 [ %tmp2232, %bb2231 ], [ %tmp2232439, %bb2149 ] ; <i32> [#uses=2]
%done.0 = phi i32 [ %done.2, %bb2231 ], [ 0, %bb2149 ] ; <i32> [#uses=1]
%tmp2239 = icmp eq i32 %done.0, 0 ; <i1> [#uses=1]
br i1 %tmp2239, label %bb2231, label %bb2327

or

bb38.i298: ; preds = %bb33.i295, %bb1693
%tmp39.i296.rle = phi %struct.ibox* [ null, %bb1693 ], [ %tmp39.i296.rle1109, %bb33.i295 ] ; <%struct.ibox*> [#uses=2]
%minspan.1.i291.reg2mem.1 = phi i32 [ 32000, %bb1693 ], [ %minspan.0.i288, %bb33.i295 ] ; <i32> [#uses=1]
%tmp40.i297 = icmp eq %struct.ibox* %tmp39.i296.rle, null ; <i1> [#uses=1]
br i1 %tmp40.i297, label %implfeeds.exit311, label %bb43.i301

This triggers thousands of times in spec.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50110 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoDig through multiple levels of AND to thread jumps if needed.
Chris Lattner [Tue, 22 Apr 2008 20:46:09 +0000 (20:46 +0000)]
Dig through multiple levels of AND to thread jumps if needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50106 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMove MemCpyOpt after GVN.
Owen Anderson [Tue, 22 Apr 2008 07:12:26 +0000 (07:12 +0000)]
Move MemCpyOpt after GVN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50097 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoTeach jump threading to thread through blocks like:
Chris Lattner [Tue, 22 Apr 2008 07:05:46 +0000 (07:05 +0000)]
Teach jump threading to thread through blocks like:

  br (and X, phi(Y, Z, false)), label L1, label L2

This triggers once on 252.eon and 6 times on 176.gcc.  Blocks
in question often look like this:

bb262: ; preds = %bb261, %bb248
%iftmp.251.0 = phi i1 [ true, %bb261 ], [ false, %bb248 ] ; <i1> [#uses=4]
%tmp270 = icmp eq %struct.rtx_def* %tmp.0.i, null ; <i1> [#uses=1]
%bothcond = or i1 %iftmp.251.0, %tmp270 ; <i1> [#uses=1]
br i1 %bothcond, label %bb288, label %bb273

In this case, it is clear that it doesn't matter if tmp.0.i is null when coming from bb261.  When coming from bb248, it is all that matters.

Another random example:

check_asm_operands.exit: ; preds = %check_asm_operands.exit.thr_comm, %bb30.i, %bb12.i, %bb6.i413
%tmp.0.i420 = phi i1 [ true, %bb6.i413 ], [ true, %bb12.i ], [ true, %bb30.i ], [ false, %check_asm_operands.exit.thr_comm ; <i1> [#uses=1]
call void @llvm.stackrestore( i8* %savedstack ) nounwind
%tmp4389 = icmp eq i32 %added_sets_1.0, 0 ; <i1> [#uses=1]
%tmp4394 = icmp eq i32 %added_sets_2.0, 0 ; <i1> [#uses=1]
%bothcond80 = and i1 %tmp4389, %tmp4394 ; <i1> [#uses=1]
%bothcond81 = and i1 %bothcond80, %tmp.0.i420 ; <i1> [#uses=1]
br i1 %bothcond81, label %bb4398, label %bb4397

Here is the case from 252.eon:

bb290.i.i: ; preds = %bb23.i57.i.i, %bb8.i39.i.i, %bb100.i.i, %bb100.i.i, %bb85.i.i110
%myEOF.1.i.i = phi i1 [ true, %bb100.i.i ], [ true, %bb100.i.i ], [ true, %bb85.i.i110 ], [ true, %bb8.i39.i.i ], [ false, %bb23.i57.i.i ] ; <i1> [#uses=2]
%i.4.i.i = phi i32 [ %i.1.i.i, %bb85.i.i110 ], [ %i.0.i.i, %bb100.i.i ], [ %i.0.i.i, %bb100.i.i ], [ %i.3.i.i, %bb8.i39.i.i ], [ %i.3.i.i, %bb23.i57.i.i ] ; <i32> [#uses=3]
%tmp292.i.i = load i8* %tmp16.i.i100, align 1 ; <i8> [#uses=1]
%tmp293.not.i.i = icmp ne i8 %tmp292.i.i, 0 ; <i1> [#uses=1]
%bothcond.i.i = and i1 %tmp293.not.i.i, %myEOF.1.i.i ; <i1> [#uses=1]
br i1 %bothcond.i.i, label %bb202.i.i, label %bb301.i.i
  Factoring out 3 common predecessors.

On the path from any blocks other than bb23.i57.i.i, the load and compare
are dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50096 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdded command line option -no-lazy to disable JIT lazy compilation.
Evan Cheng [Tue, 22 Apr 2008 06:51:41 +0000 (06:51 +0000)]
Added command line option -no-lazy to disable JIT lazy compilation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50095 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agorefactor some code, no functionality change.
Chris Lattner [Tue, 22 Apr 2008 06:36:15 +0000 (06:36 +0000)]
refactor some code, no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50094 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoadd a basic testcase.
Chris Lattner [Tue, 22 Apr 2008 06:35:14 +0000 (06:35 +0000)]
add a basic testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50093 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoWhoops! Undo r50087, unbreak the build.
Nick Lewycky [Tue, 22 Apr 2008 05:20:06 +0000 (05:20 +0000)]
Whoops! Undo r50087, unbreak the build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50088 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoReverse r47989. Part of removing 'unwinds to' support.
Nick Lewycky [Tue, 22 Apr 2008 05:16:51 +0000 (05:16 +0000)]
Reverse r47989. Part of removing 'unwinds to' support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50087 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoStart removing 'unwinds to' support from mainline in preparation for 2.3.
Nick Lewycky [Tue, 22 Apr 2008 05:16:02 +0000 (05:16 +0000)]
Start removing 'unwinds to' support from mainline in preparation for 2.3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50086 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd MemCpyOpt to LTO.
Owen Anderson [Tue, 22 Apr 2008 03:57:36 +0000 (03:57 +0000)]
Add MemCpyOpt to LTO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50081 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoremove dead code.
Chris Lattner [Tue, 22 Apr 2008 03:21:48 +0000 (03:21 +0000)]
remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50080 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agooptimize "p != gep p, ..." better. This allows us to compile
Chris Lattner [Tue, 22 Apr 2008 02:53:33 +0000 (02:53 +0000)]
optimize "p != gep p, ..." better.  This allows us to compile
getelementptr-seteq.ll into:

define i1 @test(i64 %X, %S* %P) {
%C = icmp eq i64 %X, -1 ; <i1> [#uses=1]
ret i1 %C
}

instead of:

define i1 @test(i64 %X, %S* %P) {
%A.idx.mask = and i64 %X, 4611686018427387903 ; <i64> [#uses=1]
%C = icmp eq i64 %A.idx.mask, 4611686018427387903 ; <i1> [#uses=1]
ret i1 %C
}

And fixes the second half of PR2235.  This speeds up the insertion sort
case by 45%, from 1.12s to 0.77s.  In practice, this will significantly
speed up for loops structured like:

for (double *P = Base + N; P != Base; --P)
  ...

Which happens frequently for C++ iterators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50079 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agomore fallout from Nicholas' asmprinter patch.
Chris Lattner [Tue, 22 Apr 2008 02:45:44 +0000 (02:45 +0000)]
more fallout from Nicholas' asmprinter patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50078 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoImplement an x86-64 ABI detail of passing structs by hidden first
Dan Gohman [Mon, 21 Apr 2008 23:59:07 +0000 (23:59 +0000)]
Implement an x86-64 ABI detail of passing structs by hidden first
argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.

Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50075 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofix some residual old API that fell thru the cracks of the conversion script, closes...
Gabor Greif [Mon, 21 Apr 2008 21:31:55 +0000 (21:31 +0000)]
fix some residual old API that fell thru the cracks of the conversion script, closes llvm.org/bugs/show_bug.cgi?id=2246

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50062 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix an out-of-bounds access in -view-sunit-dags in the case of an
Dan Gohman [Mon, 21 Apr 2008 20:07:30 +0000 (20:07 +0000)]
Fix an out-of-bounds access in -view-sunit-dags in the case of an
empty ScheduleDAG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50054 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix the encoding of the MMX movd that moves from MMX to 64-bit GPR.
Dan Gohman [Mon, 21 Apr 2008 19:52:29 +0000 (19:52 +0000)]
Fix the encoding of the MMX movd that moves from MMX to 64-bit GPR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50053 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix the way AliasSet::print prints "may alias".
Dan Gohman [Mon, 21 Apr 2008 19:48:48 +0000 (19:48 +0000)]
Fix the way AliasSet::print prints "may alias".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50051 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofix grammar-o, thanks to Duncan for noticing.
Chris Lattner [Mon, 21 Apr 2008 18:25:01 +0000 (18:25 +0000)]
fix grammar-o, thanks to Duncan for noticing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50047 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMake these structs larger to ensure that they
Duncan Sands [Mon, 21 Apr 2008 08:17:05 +0000 (08:17 +0000)]
Make these structs larger to ensure that they
are returned by struct return.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50038 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMake the struct bigger, to ensure it is returned
Duncan Sands [Mon, 21 Apr 2008 08:12:03 +0000 (08:12 +0000)]
Make the struct bigger, to ensure it is returned
by struct return.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50037 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse GVN in LTO instead of GCSE+LoadVN.
Owen Anderson [Mon, 21 Apr 2008 07:51:07 +0000 (07:51 +0000)]
Use GVN in LTO instead of GCSE+LoadVN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50036 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRemove unneeded #include's.
Owen Anderson [Mon, 21 Apr 2008 07:47:38 +0000 (07:47 +0000)]
Remove unneeded #include's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50035 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoRefactor memcpyopt based on Chris' suggestions. Consolidate several functions
Owen Anderson [Mon, 21 Apr 2008 07:45:10 +0000 (07:45 +0000)]
Refactor memcpyopt based on Chris' suggestions.  Consolidate several functions
and simplify code that was fallout from the separation of memcpyopt and gvn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50034 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFix a "large integer implicitly truncated to unsigned type"
Duncan Sands [Mon, 21 Apr 2008 07:35:28 +0000 (07:35 +0000)]
Fix a "large integer implicitly truncated to unsigned type"
warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50033 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agodon't print dominators every time it is computed with -debug.
Chris Lattner [Mon, 21 Apr 2008 06:19:02 +0000 (06:19 +0000)]
don't print dominators every time it is computed with -debug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50032 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoanother bug introduced in r47802 by nicholas, for no apparent reason.
Chris Lattner [Mon, 21 Apr 2008 06:12:55 +0000 (06:12 +0000)]
another bug introduced in r47802 by nicholas, for no apparent reason.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50031 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd an ugly note.
Chris Lattner [Mon, 21 Apr 2008 04:46:30 +0000 (04:46 +0000)]
Add an ugly note.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50029 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoAdd jump threading to liblto.
Chris Lattner [Mon, 21 Apr 2008 04:31:40 +0000 (04:31 +0000)]
Add jump threading to liblto.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50028 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agorun the jump threading pass in llvm-ld also
Chris Lattner [Mon, 21 Apr 2008 04:28:40 +0000 (04:28 +0000)]
run the jump threading pass in llvm-ld also

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50027 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoenable jump threading pass by default. This causes no miscompilations
Chris Lattner [Mon, 21 Apr 2008 04:22:09 +0000 (04:22 +0000)]
enable jump threading pass by default.  This causes no miscompilations
and can significantly shrinkify some code, particularly from C++ land.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50025 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofix a bug introduced by Nicholas' "unwinds to" stuff: we
Chris Lattner [Mon, 21 Apr 2008 04:20:33 +0000 (04:20 +0000)]
fix a bug introduced by Nicholas' "unwinds to" stuff: we
lost newlines between blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50024 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agodon't assume that the argument passed to fprintf("%s" is a string. This
Chris Lattner [Mon, 21 Apr 2008 03:18:33 +0000 (03:18 +0000)]
don't assume that the argument passed to fprintf("%s"  is a string.  This
fixes a crash in opt on 433.milc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50023 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoUse the new SplitBlockPredecessors to implement a todo.
Chris Lattner [Mon, 21 Apr 2008 02:57:57 +0000 (02:57 +0000)]
Use the new SplitBlockPredecessors to implement a todo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50022 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMove SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h
Chris Lattner [Mon, 21 Apr 2008 01:28:02 +0000 (01:28 +0000)]
Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h
as a global helper function.  At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input.  This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50020 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoMove domtree/frontier updating earlier, allowing us to use it to update phi
Chris Lattner [Mon, 21 Apr 2008 01:05:08 +0000 (01:05 +0000)]
Move domtree/frontier updating earlier, allowing us to use it to update phi
nodes, removing a hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50019 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoFactor dominator tree and frontier updating into SplitBlockPredecessors
Chris Lattner [Mon, 21 Apr 2008 00:54:38 +0000 (00:54 +0000)]
Factor dominator tree and frontier updating into SplitBlockPredecessors
instead of doing it after every call.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50018 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofit some more code in 80 cols.
Chris Lattner [Mon, 21 Apr 2008 00:25:49 +0000 (00:25 +0000)]
fit some more code in 80 cols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50016 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agosimplify code, fit in 80 cols.
Chris Lattner [Mon, 21 Apr 2008 00:23:14 +0000 (00:23 +0000)]
simplify code, fit in 80 cols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50015 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agofit in 80 cols
Chris Lattner [Mon, 21 Apr 2008 00:19:16 +0000 (00:19 +0000)]
fit in 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50014 91177308-0d34-0410-b5e6-96231b3b80d8

16 years agoBe pessimistic in computing the buffer size when aligning.
Nicolas Geoffray [Sun, 20 Apr 2008 23:39:44 +0000 (23:39 +0000)]
Be pessimistic in computing the buffer size when aligning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50008 91177308-0d34-0410-b5e6-96231b3b80d8