Chris Lattner
69e6317083
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
2008-04-23 05:36:04 +00:00
Chris Lattner
7e4687a9f2
returning an empty multiple return list is not valid.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50135 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:29:14 +00:00
Chris Lattner
525af20937
make this test more interesting.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50128 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 03:49:32 +00:00
Chris Lattner
ed98501ab7
distill down the essense of this test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50125 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 03:03:42 +00:00
Dale Johannesen
02dc1a7f1f
new test
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50123 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 01:22:22 +00:00
Evan Cheng
f30752cbcc
Don't do: "(X & 4) >> 1 == 2 --> (X & 4) == 4" if there are more than one uses of the shift result.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 00:38:06 +00:00
Chris Lattner
a5ddb59a13
Start doing the significantly useful part of jump threading: handle cases
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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
2008-04-22 21:40:39 +00:00
Chris Lattner
ae65b3c791
Dig through multiple levels of AND to thread jumps if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 20:46:09 +00:00
Chris Lattner
6bf77500c6
Teach jump threading to thread through blocks like:
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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
2008-04-22 07:05:46 +00:00
Chris Lattner
f29984f695
add a basic testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50093 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 06:35:14 +00:00
Nick Lewycky
dc2421f786
Start removing 'unwinds to' support from mainline in preparation for 2.3.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50086 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 05:16:02 +00:00
Chris Lattner
10c0d9179e
optimize "p != gep p, ..." better. This allows us to compile
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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)
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Which happens frequently for C++ iterators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 02:53:33 +00:00
Dan Gohman
61a9213440
Implement an x86-64 ABI detail of passing structs by hidden first
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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
2008-04-21 23:59:07 +00:00
Duncan Sands
92b9d49e4c
Make these structs larger to ensure that they
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are returned by struct return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50038 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 08:17:05 +00:00
Duncan Sands
09eb6e7c25
Make the struct bigger, to ensure it is returned
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by struct return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50037 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 08:12:03 +00:00
Owen Anderson
a8bd65835b
Refactor memcpyopt based on Chris' suggestions. Consolidate several functions
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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
2008-04-21 07:45:10 +00:00
Chris Lattner
bd381a777b
A better fix for my previous patch, MOVZQI2PQIrr just requires SSE2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49986 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 05:52:46 +00:00
Chris Lattner
b15f760cda
Not all x86-64 machines have sse3 apparently.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49985 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-20 05:47:56 +00:00
Chris Lattner
5ae21fb23a
rename *.llx -> *.ll, last batch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49971 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:32:52 +00:00
Chris Lattner
1ce9e00f8b
rename *.llx -> *.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:29:10 +00:00
Chris Lattner
e972299f34
rename *.llx -> *.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49969 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:26:29 +00:00
Chris Lattner
d881ad2c57
Implement PR2206.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49967 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 22:17:26 +00:00
Chris Lattner
1c14c29746
refactor handling of symbolic constant folding, picking up
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a few new cases( see Integer/a1.ll), but not anything that
would happen in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49965 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 21:58:19 +00:00
Evan Cheng
8608f2eff2
64-bit atomic operations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49949 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 02:30:38 +00:00
Dan Gohman
f4423b1e45
Teach llvm-as to accept function types with multiple return types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49945 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 00:24:39 +00:00
Evan Cheng
639f493ebf
Be more careful with insert_subreg and extract_subreg where either source or destination operand has already been coalesced with another register that's defined by a insert_subreg or extract_subreg.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49843 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 07:58:04 +00:00
Owen Anderson
241f65321e
Make GVN able to remove unnecessary calls to read-only functions again.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49842 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 05:36:50 +00:00
Evan Cheng
621d157676
Fix a sub-register indice propagation bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49832 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-17 00:06:42 +00:00
Evan Cheng
03eb38848c
Don't forget about sub-register indices when rematting instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49830 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 23:44:44 +00:00
Evan Cheng
9c1e06e187
After reading memory that's already freed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49810 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 20:24:25 +00:00
Evan Cheng
6f0ca06296
Really test what's intended.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 18:21:55 +00:00
Evan Cheng
0d4bdde327
Rewrite LiveVariable liveness computation. The new implementation is much simplified. It eliminated the nasty recursive routines and removed the partial def / use bookkeeping. There is also potential for performance improvement by replacing the conservative handling of partial physical register definitions. The code is currently disabled until live interval analysis is taught of the name scheme.
...
This patch also fixed a couple of nasty corner cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49784 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 09:46:40 +00:00
Owen Anderson
9eb883a56a
XFAIL this test for the moment. The real solution is to prevent ADCE
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from transforming loops and adding a separate loop pass for removing
loops with know trip counts. Until that happens, ADCE is miscompiling this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49769 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 04:25:42 +00:00
Dan Gohman
171c11ec93
Add support for the form of the SSE41 extractps instruction that
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puts its result in a 32-bit GPR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 02:32:24 +00:00
Dan Gohman
bcda285fcc
Recreate the size SDNode instead of reusing the old one in the x86
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memcpy lowering code; this ensures that the size node has the desired
result type. This fixes a regression from r49572 with @llvm.memcpy.i64
on x86-32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16 01:32:32 +00:00
Dan Gohman
a630f4ed91
Add movd instructions to move from MMX registers
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to 64-bit GPR registers on x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49757 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 23:55:07 +00:00
Dale Johannesen
21d31a8d94
Don't assume a tail call can't reference a byval
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argument to the outer function, this isn't correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49731 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 17:41:34 +00:00
Dan Gohman
80792f3dde
Treat EntryToken nodes as "passive" so that they aren't added to the
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ScheduleDAG; they don't correspond to any actual instructions so they
don't need to be scheduled.
This fixes a bug where the EntryToken was being scheduled multiple
times in some cases, though it ended up not causing any trouble because
EntryToken doesn't expand into anything. With this fixed the schedulers
reliably schedule the expected number of units, so we can check this
with an assertion.
This requires a tweak to test/CodeGen/X86/loop-hoist.ll because it
ends up getting scheduled differently in a trivial way, though it was
enough to fool the prcontext+grep that the test does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49701 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 01:22:18 +00:00
Dan Gohman
63f7ba085f
Upgrade these tests for the current intrinsic prototypes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49669 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-14 18:19:18 +00:00
Dale Johannesen
0a6ee6d131
Remove -unwind-tables-optional everywhere, since
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this is now the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-14 17:56:54 +00:00
Owen Anderson
fa0e66471f
The functionality being tested was removed because it was horribly unsafe.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49610 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-13 09:51:06 +00:00
Arnold Schwaighofer
4b5324ad2c
This patch corrects the handling of byval arguments for tailcall
...
optimized x86-64 (and x86) calls so that they work (... at least for
my test cases).
Should fix the following problems:
Problem 1: When i introduced the optimized handling of arguments for
tail called functions (using a sequence of copyto/copyfrom virtual
registers instead of always lowering to top of the stack) i did not
handle byval arguments correctly e.g they did not work at all :).
Problem 2: On x86-64 after the arguments of the tail called function
are moved to their registers (which include ESI/RSI etc), tail call
optimization performs byval lowering which causes xSI,xDI, xCX
registers to be overwritten. This is handled in this patch by moving
the arguments to virtual registers first and after the byval lowering
the arguments are moved from those virtual registers back to
RSI/RDI/RCX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49584 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 18:11:06 +00:00
Dan Gohman
707e018423
Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
...
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.
Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.
This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.
Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.
This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 04:36:06 +00:00
Dan Gohman
6f836adafe
Fix a bug that prevented x86-64 from using rep.movsq for
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8-byte-aligned data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 02:35:39 +00:00
Evan Cheng
f870fbc554
If a PHI node has a single implicit_def source, replace it with an implicit_def instead of a copy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49543 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-11 17:54:45 +00:00
Owen Anderson
c008c5e08c
Add testcase for PR2213.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49517 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-11 05:13:32 +00:00
Evan Cheng
b94d966716
New test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49514 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 23:49:09 +00:00
Dan Gohman
eee962e1ce
Teach InstCombine's ComputeMaskedBits to handle pointer expressions
...
in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment
as a ComputeMaskedBits problem, moving all of its special alignment
knowledge to ComputeMaskedBits as low-zero-bits knowledge.
Also, teach ComputeMaskedBits a few basic things about Mul and PHI
instructions.
This improves ComputeMaskedBits-based simplifications in a few cases,
but more noticeably it significantly improves instcombine's alignment
detection for loads, stores, and memory intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49492 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 18:43:06 +00:00
Evan Cheng
172b70c62a
A copy instruction may use a register multiple times on some targets. Change them all.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49491 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 18:38:47 +00:00
Chris Lattner
db66750753
Fix the x86-64 side of PR2108 by adding a v2f64 version of
...
MOVZQI2PQIrr. This would be better handled as a dag combine
(with the goal of eliminating the bitconvert) but I don't know
how to do that safely. Thoughts welcome.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 05:13:43 +00:00
Evan Cheng
80b09fe8bc
Teach branch folding pass about implicit_def instructions. Unfortunately we can't just eliminate them since register scavenger expects every register use to be defined. However, we can delete them when there are no intra-block uses. Carefully removing some implicit def's which enable more blocks to be optimized away.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10 02:32:10 +00:00
Evan Cheng
7e073baedb
- More aggressively coalescing away copies whose source is defined by an implicit_def.
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- Added insert_subreg coalescing support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49448 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 20:57:25 +00:00
Chris Lattner
cc7f168c6c
Generalize getUnaryFloatFunction to handle any FP unary function, automatically
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figuring out the suffix to use. implement pow(2,x) -> exp2(x).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 17:48:11 +00:00
Chris Lattner
090a816623
remove capital letter from test name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49436 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 17:46:36 +00:00
Owen Anderson
a723d1e48f
Factor a bunch of functionality related to memcpy and memset transforms out of
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GVN and into its own pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 08:23:16 +00:00
Evan Cheng
f20d943bc6
Missed a hasInterval check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49415 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 01:30:15 +00:00
Chris Lattner
77d00b0cea
many cleanups to the pow optimizer. Allow it to handle powf,
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add support for pow(x, 2.0) -> x*x.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49411 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 00:07:45 +00:00
Duncan Sands
7497b92c2f
Check that bodies and calls but not declarations
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are marked nounwind when compiling without
-fexceptions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49393 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 19:31:52 +00:00
Dale Johannesen
c8abfdec84
Rename -disable-required-unwind-tables to -unwind-tables-optional.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49391 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 18:10:08 +00:00
Gabor Greif
d9c7dbfe44
merge r48768 from branches/ggreif/parallelized-test
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49382 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 15:22:41 +00:00
Dale Johannesen
a25e5787bc
Missed one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49365 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 00:14:59 +00:00
Dale Johannesen
235f7fb474
Add -disable-required-unwind-tables to tests
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that need it (usually, grepping for some string
found in unwind info)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49364 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08 00:14:17 +00:00
Duncan Sands
f02a8070eb
Testcase for pr2169.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49344 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 17:03:16 +00:00
Evan Cheng
565ada0b35
Fix test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49343 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 17:02:18 +00:00
Chris Lattner
eeb939accb
fix this testcase to pass and remove a duplicate instance of itself.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49281 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06 21:39:17 +00:00
Torok Edwin
4fea2e982d
Prefer to expand mask for xor to -1, so we have a chance to turn it into a not.
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If it cannot be expanded, it will keep the old behaviour and try to shrink the constant.
Part of enhancement for PR2191.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49280 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06 21:23:02 +00:00
Evan Cheng
1dc7869025
1. IMPLICIT_DEF can *re-define* any register.
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2. Coalescer can now create an interesting situation where a register def can
reaches itself without being killed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49246 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-05 01:27:09 +00:00
Evan Cheng
0c0f83ff5d
Favors pshufd over shufps when shuffling elements from one vector. pshufd is faster than shufps.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49244 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-05 00:30:36 +00:00
Evan Cheng
b589d9f42d
New test case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49190 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 21:25:03 +00:00
Dale Johannesen
4672d5d4db
Testcase for EH with functions whose names are stripped.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49111 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02 20:16:41 +00:00
Dan Gohman
68d599df37
Speculatively micro-optimize memory-zeroing calls on Darwin 10.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49048 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 20:38:36 +00:00
Evan Cheng
9845eb5b03
More soft fp fixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49016 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 02:18:22 +00:00
Evan Cheng
110cf48752
Unbreak ARM / Thumb soft FP support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49012 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 01:50:16 +00:00
Dale Johannesen
1d3863fdbc
Mark functions in some tests as 'nounwind'. Generating
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EH info for these functions causes the tests to fail for
random reasons (e.g. looking for 'or' or counting lines
with asm-printer; labels count as lines.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49003 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 23:20:09 +00:00
Evan Cheng
427f4c106a
It's not safe to fold a load from GV stub or constantpool into a two-address use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49002 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 23:19:51 +00:00
Dan Gohman
b061c4bc44
Fix a DAGCombiner optimization to respect volatile qualification.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48994 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-31 20:32:52 +00:00
Chris Lattner
f83e13ae0a
add a testcase for forming memset from noncontiguous stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48938 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-29 04:51:35 +00:00
Dan Gohman
d4a2ad35e3
Fix a tokenfactor node to use the load chain rather than the
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load value. This fixes PR2177.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48932 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-28 23:45:16 +00:00
Devang Patel
156b2df00d
add another testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48881 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 17:13:55 +00:00
Devang Patel
53b87db8d3
New test case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48858 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 01:51:31 +00:00
Evan Cheng
7a963fa8ee
Fix a memory bug: increment an iterator of a deleted machine instr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48853 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 01:27:25 +00:00
Erick Tryzelaar
7c1483bc6f
Expose ExecutionEngine::getTargetData() to c and ocaml bindings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48851 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-27 00:27:14 +00:00
Evan Cheng
0c28432852
One more coalescer fix wrt deadness propagation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-26 20:15:49 +00:00
Evan Cheng
ed70cbb3f3
Avoid commuting a def MI in order to coalesce a copy instruction away if any use of the same val# is a copy instruction that has already been coalesced.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48833 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-26 19:03:01 +00:00
Dale Johannesen
27c31054ec
Use ## for comment delimiter on darwin x86-32, so
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llvm's output .s files will go through gcc -std=c99
without triggering preprocesser errors. Approach
suggested by Daveed Vandevoorde.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48808 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 23:29:30 +00:00
Evan Cheng
26471c48b3
Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 20:08:07 +00:00
Evan Cheng
d34af7875b
Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48791 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 20:07:13 +00:00
Dan Gohman
27845362d9
Add CMP32mr and friends to the load-unfolding table. Among
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other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48777 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 16:53:19 +00:00
Gordon Henriksen
1d21395f4c
Tests for the instruction iterator bindings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48775 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 16:35:08 +00:00
Tanya Lattner
6f729d601c
Byebye llvm-upgrade!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 04:26:08 +00:00
Evan Cheng
a2fb634def
lastRegisterUse() should ignore identity copies. Those will be erased.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48759 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 02:02:19 +00:00
Devang Patel
d804f8ff70
check struct layout
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48758 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-25 00:47:49 +00:00
Bill Wendling
3e98c30cf5
Use the bit size of the operand instead of the hard-coded 32 to generate the
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mask.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 23:16:37 +00:00
Evan Cheng
62a3f1538c
- SSE4.1 extractfps extracts a f32 into a gr32 register. Very useful! Not. Fix the instruction specification and teaches lowering code to use it only when the only use is a store instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 21:52:23 +00:00
Devang Patel
60a12907c3
Add incoming value from header only if phi node has any use inside the loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48738 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 20:16:14 +00:00
Devang Patel
fb0f58302a
Fix test name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48733 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 18:08:07 +00:00
Chris Lattner
0b26a31ae6
apparently tclsh doesn't lex like bash. Weird.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48732 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 17:41:57 +00:00
Chris Lattner
263250b131
pass the option so this test tests the right thing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48731 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 17:36:38 +00:00
Devang Patel
eee4f8490b
Add new test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48730 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 17:16:39 +00:00
Devang Patel
648deab93b
Remove incorrect comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48728 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 16:58:20 +00:00