Chris Lattner
438e08e357
Convert more Statistic's over to STATISTIC
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32692 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 21:49:03 +00:00
Chris Lattner
0e5f499638
Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
...
converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32690 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-19 21:40:18 +00:00
Reid Spencer
8a903db499
Convert the last uses of CastInst::createInferredCast to a normal cast
...
creation. These changes are still temporary but at least this pushes
knowledge of signedness out closer to where it can be determined properly
and allows signedness to be removed from VMCore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32654 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-18 08:47:13 +00:00
Chris Lattner
d22dbdf606
re-enable a temporarily-reverted patch
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32595 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-15 07:32:38 +00:00
Reid Spencer
c55b243bcd
Fix a bug in EvaluateInDifferentType. The type of operand should not be
...
used to determine whether a ZExt or SExt cast is performed. Instead, pass
an "isSigned" bool to the function and determine its value from the opcode
of the cast involved.
Also, clean up some cruft from previous patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32548 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 18:21:21 +00:00
Reid Spencer
7eb7638276
Implement review feedback. Most of this has to do with removing unnecessary
...
cast instructions. A few are bug fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32544 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 17:19:09 +00:00
Reid Spencer
21a55c9f08
For mul transforms, when checking for a cast from bool as either operand,
...
make sure to also check that it is a zext from bool, not any other cast
operation type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32539 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:33:33 +00:00
Reid Spencer
5ae9cebef5
Fix and/or/xor (cast A), (cast B) --> cast (and/or/xor A, B)
...
The cast patch introduced the possibility that the wrong cast opcode
could be used and that this transform could trigger on different kinds
of cast operations. This patch rectifies that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32538 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:27:15 +00:00
Reid Spencer
3ba68b9eef
Change the interface to SCEVExpander::InsertCastOfTo to take a cast opcode
...
so the decision of which opcode to use is pushed upward to the caller.
Adjust the callers to pass the expected opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32535 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 08:06:42 +00:00
Chris Lattner
21c362d324
revert my recent int<->fp and vector union promotion changes, they expose
...
obscure bugs affecting the X86 code generator. I will reenable this
when fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32524 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 02:26:45 +00:00
Reid Spencer
7b06bd532d
Replace CastInst::createInferredCast calls with more accurate cast
...
creation calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32521 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-13 00:50:17 +00:00
Reid Spencer
d977d8651a
Replace inferred getCast(V,Ty) calls with more strict variants.
...
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 23:36:14 +00:00
Chris Lattner
bb4e7b2fa4
this can be trunc or bitcast, per line 3092.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32487 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 19:11:20 +00:00
Chris Lattner
078b631ff3
Fix regression on 400.perlbench last night.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32486 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 18:41:03 +00:00
Reid Spencer
17212df0ee
Fix numerous inferred casts.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 09:18:51 +00:00
Reid Spencer
4da49122f3
Change inferred getCast into specific getCast. Passes all tests.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32469 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 05:05:00 +00:00
Chris Lattner
a30fc5ed04
Patch for PR1045 and Transforms/ScalarRepl/2006-12-11-SROA-Crash.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32468 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-12 04:24:41 +00:00
Chris Lattner
509f85140c
trunc to integer, not to FP.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32426 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11 01:17:00 +00:00
Chris Lattner
1dbea1598c
implement promotion of unions containing two packed types of the same width.
...
This implements Transforms/ScalarRepl/union-packed.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32422 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-11 00:35:08 +00:00
Chris Lattner
ae6a305094
* Eliminate calls to CastInst::createInferredCast.
...
* Add support for promoting unions with fp values in them. This produces
our new int<->fp bitcast instructions, implementing
Transforms/ScalarRepl/union-fp-int.ll
As an example, this allows us to compile this:
union intfloat { int i; float f; };
float invsqrt(const float arg_x) {
union intfloat x = { .f = arg_x };
const float xhalf = arg_x * 0.5f;
x.i = 0x5f3759df - (x.i >> 1);
return x.f * (1.5f - xhalf * x.f * x.f);
}
into:
_invsqrt:
movss 4(%esp), %xmm0
movd %xmm0, %eax
sarl %eax
movl $1597463007, %ecx
subl %eax, %ecx
movd %ecx, %xmm1
mulss LCPI1_0, %xmm0
mulss %xmm1, %xmm0
movss LCPI1_1, %xmm2
mulss %xmm1, %xmm0
subss %xmm0, %xmm2
movl 8(%esp), %eax
mulss %xmm2, %xmm1
movss %xmm1, (%eax)
ret
instead of:
_invsqrt:
subl $4, %esp
movss 8(%esp), %xmm0
movss %xmm0, (%esp)
movl (%esp), %eax
movl $1597463007, %ecx
sarl %eax
subl %eax, %ecx
movl %ecx, (%esp)
mulss LCPI1_0, %xmm0
movss (%esp), %xmm1
mulss %xmm1, %xmm0
mulss %xmm1, %xmm0
movss LCPI1_1, %xmm2
subss %xmm0, %xmm2
mulss %xmm2, %xmm1
movl 12(%esp), %eax
movss %xmm1, (%eax)
addl $4, %esp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32418 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-10 23:56:50 +00:00
Reid Spencer
f7761e5c39
Incorporate any changes in the successor blocks into the result of
...
MarkAliveBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32375 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-08 21:52:01 +00:00
Bill Wendling
832171cb97
Removing even more <iostream> includes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32320 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07 20:04:42 +00:00
Bill Wendling
e81561909d
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
...
now cerr, cout, and NullStream resp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-07 01:30:32 +00:00
Reid Spencer
62700f250f
Update ConstantIntegral Max/Min tests for new interface.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32288 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 20:39:57 +00:00
Chris Lattner
02fc40ebd3
add missing #include
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32280 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 18:14:47 +00:00
Chris Lattner
ac0b6ae358
Detemplatize the Statistic class. The only type it is instantiated with
...
is 'unsigned'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 17:46:33 +00:00
Chris Lattner
3749c9cae4
Remove the 'printname' argument to WriteAsOperand. It is always true, and
...
passing false would make the asmprinter fail anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32264 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-06 06:16:21 +00:00
Chris Lattner
e13ab2a9a1
add an instcombine xform. This speeds up 462.libquantum from 9.78s to
...
7.48s. This regression is due to unforseen consequences of the cast patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32209 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-05 01:26:29 +00:00
Devang Patel
67a821d9a3
SCCP does not handle Packed Type properly. Disable Packed Type handling
...
for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32208 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04 23:54:59 +00:00
Reid Spencer
3b3844288b
Update call to CastInst::getCastOpcode for its new signature.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32166 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-04 02:48:01 +00:00
Jeff Cohen
97af751deb
Unbreak VC++ build.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32113 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 02:22:01 +00:00
Chris Lattner
9919e3df17
disable transformations that are invalid for fp vectors. This fixes
...
Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32112 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 00:13:08 +00:00
Reid Spencer
44c030a7ee
Remove 4 FIXMEs to hack around cast-to-bool problems which no longer exist.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32051 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-30 23:13:36 +00:00
Chris Lattner
46b96055cf
implement cast.ll:test35. With this, we recognize:
...
unsigned short swp(unsigned short a) {
return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
}
as an idiom for bswap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32011 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 07:18:39 +00:00
Chris Lattner
6aa5eb19d5
Teach instcombine to turn trunc(srl x, c) -> srl (trunc(x), c) when safe.
...
This implements InstCombine/cast.ll:test34. It fires hundreds of times on
176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 07:04:07 +00:00
Chris Lattner
458cf462ef
Implement Regression/Transforms/InstCombine/bswap-fold.ll,
...
folding seteq (bswap(x)), c -> seteq(x,bswap(c))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32006 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 05:02:16 +00:00
Reid Spencer
de33124aa3
Join a split line.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31996 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-29 01:11:01 +00:00
Reid Spencer
d4d9ab80b7
Undo the last patch until 253.perlbmk passes with these changes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31977 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28 20:23:51 +00:00
Reid Spencer
5d4dbd1f60
Remove 4 FIXME's from the CAST patch now that the back end is correctly
...
producing code for "trunc to bool". This passes all tests on Linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31963 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-28 07:23:01 +00:00
Chris Lattner
f2f1643037
Fix PR1014 and InstCombine/2006-11-27-XorBug.ll.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31941 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27 19:55:07 +00:00
Reid Spencer
3da59db637
For PR950:
...
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-27 01:05:10 +00:00
Bill Wendling
b742703137
Removed #include <iostream> and replaced with llvm_* streams.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31923 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-26 09:46:52 +00:00
Nick Lewycky
565706b93e
Update to new predicate simplifier VRP design. Fixes PR966 and PR967.
...
Remove predicate simplifier from default gcc3 pipeline. New design is too
slow to enable by default.
Add new testcases for problems encountered in development.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31895 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-22 23:49:16 +00:00
Chris Lattner
13c654a42a
This xform is handled by FoldOpIntoPhi in visitCastInst in a more elegant way.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31889 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-21 17:05:13 +00:00
Chris Lattner
020f714a93
If an indvar with a variable stride is used by the exit condition, go ahead
...
and handle it like constant stride vars. This fixes some bad codegen in
variable stride cases. For example, it compiles this:
void foo(int k, int i) {
for (k=i+i; k <= 8192; k+=i)
flags2[k] = 0;
}
to:
LBB1_1: #bb.preheader
movl %eax, %ecx
addl %ecx, %ecx
movl L_flags2$non_lazy_ptr, %edx
LBB1_2: #bb
movb $0, (%edx,%ecx)
addl %eax, %ecx
cmpl $8192, %ecx
jle LBB1_2 #bb
LBB1_5: #return
ret
or (if the array is local and we are in dynamic-nonpic or static mode):
LBB3_2: #bb
movb $0, _flags2(%ecx)
addl %eax, %ecx
cmpl $8192, %ecx
jle LBB3_2 #bb
and:
lis r2, ha16(L_flags2$non_lazy_ptr)
lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
slwi r3, r4, 1
LBB1_2: ;bb
li r5, 0
add r6, r4, r3
stbx r5, r2, r3
cmpwi cr0, r6, 8192
bgt cr0, LBB1_5 ;return
instead of:
leal (%eax,%eax,2), %ecx
movl %eax, %edx
addl %edx, %edx
addl L_flags2$non_lazy_ptr, %edx
xorl %esi, %esi
LBB1_2: #bb
movb $0, (%edx,%esi)
movl %eax, %edi
addl %esi, %edi
addl %ecx, %esi
cmpl $8192, %esi
jg LBB1_5 #return
and:
lis r2, ha16(L_flags2$non_lazy_ptr)
lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
mulli r3, r4, 3
slwi r5, r4, 1
li r6, 0
add r2, r2, r5
LBB1_2: ;bb
li r5, 0
add r7, r3, r6
stbx r5, r2, r6
add r6, r4, r6
cmpwi cr0, r7, 8192
ble cr0, LBB1_2 ;bb
This speeds up Benchmarks/Shootout/sieve from 8.533s to 6.464s and
implements LoopStrengthReduce/var_stride_used_by_compare.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31809 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-17 06:17:33 +00:00
Chris Lattner
d23b5baf8a
Fix a gcc 4.2 warning.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31751 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-15 04:53:24 +00:00
Chris Lattner
e511b74f4a
implement InstCombine/shift-simplify.ll by transforming:
...
(X >> Z) op (Y >> Z) -> (X op Y) >> Z
for all shifts and all ops={and/or/xor}.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31729 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 07:46:50 +00:00
Chris Lattner
9c2328e5a9
implement InstCombine/and-compare.ll:test1. This compiles:
...
typedef struct { unsigned prefix : 4; unsigned code : 4; unsigned unsigned_p : 4; } tree_common;
int foo(tree_common *a, tree_common *b) { return a->code == b->code; }
into:
_foo:
movl 4(%esp), %eax
movl 8(%esp), %ecx
movl (%eax), %eax
xorl (%ecx), %eax
# TRUNCATE movb %al, %al
shrb $4, %al
testb %al, %al
sete %al
movzbl %al, %eax
ret
instead of:
_foo:
movl 8(%esp), %eax
movb (%eax), %al
shrb $4, %al
movl 4(%esp), %ecx
movb (%ecx), %cl
shrb $4, %cl
cmpb %al, %cl
sete %al
movzbl %al, %eax
ret
saving one cycle by eliminating a shift.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31727 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-14 06:06:06 +00:00
Chris Lattner
de2b6605ba
Fix InstCombine/2006-11-10-ashr-miscompile.ll a miscompilation introduced
...
by the shr -> [al]shr patch. This was reduced from 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31653 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-10 23:38:52 +00:00
Chris Lattner
b4a2f059ad
Teach ShrinkDemandedConstant how to handle X+C. This implements:
...
add.ll:test33, add.ll:test34, shift-sra.ll:test2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31586 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 05:12:27 +00:00