Dan Gohman
cc2ad058b3
Fix some code to work if TargetLowering is not available.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70546 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-01 16:29:14 +00:00
Dale Johannesen
22523ad737
Print correct instruction in dump.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70427 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:57:20 +00:00
Dan Gohman
f159ccd1cd
Reword and tidy up some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70416 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 22:01:05 +00:00
Dan Gohman
d908adf2ec
Remove an obsolete comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27 22:12:34 +00:00
Dale Johannesen
617d108a63
Fix PR 4086, a bug in FP IV elimination.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27 21:03:15 +00:00
Dan Gohman
c7749b747e
Permit ChangeCompareStride to rewrite a comparison when the factor
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between the comparison's iv stride and the candidate stride is
exactly -1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70244 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27 20:35:32 +00:00
Dan Gohman
2fe4d0aacb
Return null instead of false, as appropriate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 17:28:45 +00:00
Dan Gohman
1c8491ecc7
Add several more icmp simplifications. Transform signed comparisons
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into unsigned ones when the operands are known to have the same
sign bit value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70053 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 17:12:48 +00:00
Sanjiv Gupta
7787d4a34b
Allow i16 type indices to gep.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69946 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24 02:37:54 +00:00
Dan Gohman
752ec7da50
Change SCEVExpander's expandCodeFor to provide more flexibility
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with the persistent insertion point, and change IndVars to make
use of it. This fixes a bug where IndVars was holding on to a
stale insertion point and forcing the SCEVExpander to continue to
use it.
This fixes PR4038.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69892 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23 15:16:49 +00:00
Evan Cheng
9c15949967
Make sure both operands have binary instructions have the same type.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 23:39:28 +00:00
Evan Cheng
a8d4d7fe47
A few more places where the check of use_empty is needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69842 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 23:09:16 +00:00
Evan Cheng
1abe64663e
Avoid deferencing use_begin() if value does not have a use.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 22:45:37 +00:00
Chris Lattner
33e24adc3b
fix a crash on a pointless but valid zero-length memset, rdar://6808691
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 16:52:12 +00:00
Dan Gohman
84923602fd
Factor out a common base class from SCEVTruncateExpr, SCEVZeroExtendExpr,
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and SCEVSignExtendExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:25:57 +00:00
Dan Gohman
af79fb5f47
Introduce encapsulation for ScalarEvolution's TargetData object, and refactor
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the code to minimize dependencies on TargetData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69644 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:07:12 +00:00
Dale Johannesen
23300aa3e3
Adjust loop size estimate for full unrolling;
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GEP's don't usually become instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69631 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 22:19:33 +00:00
Sanjiv Gupta
428098de62
Before trying to introduce/eliminate cast/ext/trunc to make indices type as
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pointer type, make sure that the pointer size is a valid sequential index type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69574 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 06:05:54 +00:00
Dan Gohman
890f92b744
Use more const qualifiers with SCEV interfaces.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69450 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18 17:56:28 +00:00
Dan Gohman
edf7cf80d8
Don't create ConstantInts with pointer type. This fixes a
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regression in 403.gcc in PIC_CODEGEN=1 and DISABLE_LTO=1
mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17 02:02:52 +00:00
Dan Gohman
84fc33ed92
Use TargetData::getTypeSizeInBits instead of getPrimitiveSizeInBits()
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to get the correct answer for pointer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69321 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 22:35:57 +00:00
Dan Gohman
65e05b69d6
Minor code simplifications. Don't attempt LSR on theoretical
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targets with pointers larger than 64 bits, due to the code not
yet being APInt clean.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69296 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 16:49:48 +00:00
Dan Gohman
13317bc1e9
LSR is no longer a GEP optimizer. It is now an IV expression
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optimizer, which just happen to frequently involve optimizing GEPs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69295 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 16:46:01 +00:00
Dan Gohman
798d3923e0
Use ConstantExpr::getIntToPtr instead of SCEVExpander::InsertCastOfTo,
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since the operand is always a constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69291 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 15:48:38 +00:00
Dan Gohman
e616bf338a
Use a SCEV expression cast instead of immediately inserting a
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new instruction with SCEVExpander::InsertCastOfTo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69290 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 15:47:35 +00:00
Dan Gohman
2d1be87ee4
Expand GEPs in ScalarEvolution expressions. SCEV expressions can now
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have pointer types, though in contrast to C pointer types, SCEV
addition is never implicitly scaled. This not only eliminates the
need for special code like IndVars' EliminatePointerRecurrence
and LSR's own GEP expansion code, it also does a better job because
it lets the normal optimizations handle pointer expressions just
like integer expressions.
Also, since LLVM IR GEPs can't directly index into multi-dimensional
VLAs, moving the GEP analysis out of client code and into the SCEV
framework makes it easier for clients to handle multi-dimensional
VLAs the same way as other arrays.
Some existing regression tests show improved optimization.
test/CodeGen/ARM/2007-03-13-InstrSched.ll in particular improved to
the point where if-conversion started kicking in; I turned it off
for this test to preserve the intent of the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 03:18:22 +00:00
Dale Johannesen
c671d892ab
Eliminate zext over (iv | const) or (signed iv),
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and sext over (iv | const), if a longer iv is
available. Allow expressions to have more than
one zext/sext parent. All from OpenSSL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69241 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 23:31:51 +00:00
Dale Johannesen
d3325d2897
Eliminate zext over (iv & const) or ((iv+const)&const)
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if a longer iv is available. These subscript forms are
not common; they're a bottleneck in OpenSSL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69215 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 20:41:02 +00:00
Dale Johannesen
dd1f9e4bf6
Enhance induction variable code to remove the
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sext around sext(shorter IV + constant), using a
longer IV instead, when it can figure out the
add can't overflow. This comes up a lot in
subscripting; mainly affects 64 bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69123 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:10:12 +00:00
Evan Cheng
aa230a41dc
Avoid making the transformation enabled by my last patch if the new destinations have phi nodes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69121 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 00:43:54 +00:00
Evan Cheng
df2f1189a3
Optimize conditional branch on i1 phis with non-constant inputs.
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This turns:
eq:
%3 = icmp eq i32 %1, %2
br label %join
ne:
%4 = icmp ne i32 %1, %2
br label %join
join:
%5 = phi i1 [%3, %eq], [%4, %ne]
br i1 %5, label %yes, label %no
=>
eq:
%3 = icmp eq i32 %1, %2
br i1 %3, label %yes, label %no
ne:
%4 = icmp ne i32 %1, %2
br i1 %4, label %yes, label %no
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69102 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14 23:40:03 +00:00
Owen Anderson
0b2a153968
LoopIndexSplit needs to inform the loop pass manager of the instructions it is
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deleting, not just the basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14 01:04:19 +00:00
Chris Lattner
5db4cdfc56
"There was a typo in my previous patch which leads to miscompilation of
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strncat :(
strncat(foo, "bar", 99)
would be optimized to
memcpy(foo+strlen(foo), "bar", 100, 1)
instead of
memcpy(foo+strlen(foo), "bar", 4, 1)"
Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 18:22:33 +00:00
Chris Lattner
f5b6bc7f0e
add some optimizations for strncpy/strncat and factor some
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code. Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 05:06:39 +00:00
Chris Lattner
ddfa57bd7b
Instcombine should not promote whole computation trees to "strange"
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integer types, unless they are already strange. This prevents it from
turning the code produced by SROA into crazy libcalls and stuff that
the code generator can't handle. In the attached example, the result
was an i96 multiply that caused the x86 backend to assert.
Note that if TargetData had an idea of what the legal types are for
a target that this could be used to stop instcombine from introducing
i64 muls, as Scott wanted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 05:41:03 +00:00
Chris Lattner
62ce3b31a7
fix rdar://6762290, a crash compiling cxx filt with clang.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 05:03:34 +00:00
Chris Lattner
683b08cf7c
remove empty section
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 02:55:53 +00:00
Ed Schouten
b5e0a96a8d
Let the strcat optimizer return the pointer to the start of the buffer,
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instead of the place where it started to perform the string copy.
- PR3661
- Patch by Benjamin Kramer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 13:06:48 +00:00
Owen Anderson
e8a290fefc
Reapply r68211, with the miscompilations it caused fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01 23:53:49 +00:00
Dan Gohman
e63c4a2010
Revert r68172. It caused regressions in
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Applications/Burg/burg
Applications/ClamAV/clamscan
and many other tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68211 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01 16:37:47 +00:00
Owen Anderson
f41fcbb60d
Enhance GVN to propagate simple conditionals. This fixes PR3921.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-01 01:20:45 +00:00
Chris Lattner
d3c7b7359d
Make the key of ValueRankMap an AssertingVH, so that we die violently
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if it dangles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68150 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31 22:13:29 +00:00
Evan Cheng
de62192843
Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1.
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e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = lshr i32 %x, 18
%t3 = select i1 %t1, i32 %t2, i32 %x
ret i32 %t3
}
was turned into
define i32 @t2(i32 %c, i32 %x) nounwind {
%t1 = icmp eq i32 %c, 0
%t2 = select i1 %t1, i32 18, i32 0
%t3 = lshr i32 %x, %t2
ret i32 %t3
}
For most targets, that means materializing two constants and then a select. e.g. On x86-64
movl %esi, %eax
shrl $18, %eax
testl %edi, %edi
cmovne %esi, %eax
ret
=>
xorl %eax, %eax
testl %edi, %edi
movl $18, %ecx
cmovne %eax, %ecx
movl %esi, %eax
shrl %cl, %eax
ret
Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31 20:42:45 +00:00
Devang Patel
b23c232fc8
Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68071 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-30 22:24:10 +00:00
Duncan Sands
0b8365c98b
Revert r67798: it breaks llvm-gcc bootstrap on x86-64-linux, presumably due to
...
a miscompilation.
make[4]: Entering directory `gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include'
if [ ! -d "./x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch" ]; then \
mkdir -p ./x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch; \
fi; \
gcc-4.2.llvm-objects/./gcc/xgcc -shared-libgcc -Bgcc-4.2.llvm-objects/./gcc -nostdinc++
-Lgcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/src -Lgcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-B/usr/local/gnat-llvm/x86_64-unknown-linux-gnu/bin/ -B/usr/local/gnat-llvm/x86_64-unknown-linux-gnu/lib/ -isystem
/usr/local/gnat-llvm/x86_64-unknown-linux-gnu/include -isystem /usr/local/gnat-llvm/x86_64-unknown-linux-gnu/sys-include -Winvalid-pch -Wno-deprecated -x
c++-header -g -O2 -D_GNU_SOURCE -Igcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu
-Igcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include -Igcc-4.2.llvm/libstdc++-v3/libsupc++ -O2 -g
gcc-4.2.llvm/libstdc++-v3/include/precompiled/stdtr1c++.h -o x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch/O2g.gch
In file included from gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/tr1/repeat.h:247,
from gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/tr1/functional:1098,
from gcc-4.2.llvm/libstdc++-v3/include/precompiled/stdtr1c++.h:53:
gcc-4.2.llvm-objects/x86_64-unknown-linux-gnu/libstdc++-v3/include/tr1/functional_iterate.h:417: internal compiler error: in ggc_recalculate_in_use_p, at
ggc-page.c:1602
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://llvm.org/bugs/ > for instructions.
make[4]: *** [x86_64-unknown-linux-gnu/bits/stdtr1c++.h.gch/O2g.gch] Error 1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67839 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-27 14:56:47 +00:00
Dale Johannesen
2d69724938
One more place to skip debug info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67811 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-27 01:13:37 +00:00
Devang Patel
fafd98b23e
While hoisting an instruction, update alias info set tracker.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67798 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-26 23:48:52 +00:00
Dale Johannesen
6aae1d6582
Skip debug info one more place. (This one gets
...
called from llc, not opt, but it's an IR level
optimization nevertheless.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-26 01:15:07 +00:00
Devang Patel
575ec806e0
Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67719 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-25 23:57:48 +00:00
Chris Lattner
e8e4921967
Fix PR3874 by restoring a condition I removed, but making it more
...
precise than it used to be.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-25 00:28:58 +00:00
Chris Lattner
569a7f087a
oops, I intended to remove this, not comment it out. Thanks Duncan!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24 23:48:25 +00:00
Chris Lattner
a0e6969bbe
canonicalize inttoptr and ptrtoint instructions which cast pointers
...
to/from integer types that are not intptr_t to convert to intptr_t
then do an integer conversion to the dest type. This exposes the
cast to the optimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67638 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24 18:35:40 +00:00
Chris Lattner
4f9797d683
two changes:
...
1. Make instcombine always canonicalize trunc x to i1 into an icmp(x&1). This
exposes the AND to other instcombine xforms and is more of what the code
generator expects.
2. Rewrite the remaining trunc pattern match to use 'match', which
simplifies it a lot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24 18:15:30 +00:00
Duncan Sands
64da9409cb
Factorize out a concept - no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-21 21:27:31 +00:00
Chris Lattner
344c7c5cc4
Fix instcombine to not introduce undefined shifts when merging two
...
shifts together. This fixes PR3851.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67411 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-20 22:41:15 +00:00
Duncan Sands
ab6b226978
Don't load values out of global constants with weak
...
linkage: the value may be replaced with something
different at link time. (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-20 21:53:29 +00:00
Dale Johannesen
f4978e2094
This pass keeps a map of Instructions to Rank numbers,
...
and was deleting Instructions without clearing the
corresponding map entry. This led to nondeterministic
behavior if the same address got allocated to another
Instruction within a short time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67306 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19 17:22:53 +00:00
Nick Lewycky
9c0f146d50
Remove strange extra semicolons.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67287 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19 05:51:39 +00:00
Chris Lattner
b44b3666f9
Fix PR3826 - InstComb assert with vector shift, by not calling ComputeNumSignBits on a vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67211 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-18 16:32:19 +00:00
Zhou Sheng
b0c4199a55
Explicitly check for StoreInst, do not lose the chance to delete
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unused loads or bitcasts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67202 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-18 12:48:48 +00:00
Zhou Sheng
16767c6b49
Revert my previous change on Local.cpp, instead, fix the bug on scalarrepl.
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If the instruction has no users, it is also not only used by debug info
and should not be deleted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67194 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-18 10:13:08 +00:00
Chris Lattner
b7e64ac3ac
LSR shouldn't ever try to hack on integer IV's larger than 64-bits. Right now
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it is not APInt clean, but even when it is it needs to be evaluated carefully
to determine whether it is actually profitable.
This fixes a crash on PR3806
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17 23:58:30 +00:00
Chris Lattner
46d232d4bc
Remove a condition which is always true.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17 17:55:15 +00:00
Dale Johannesen
6b23339502
Fix a debug info dependency in jump threading.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67064 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17 00:38:24 +00:00
Evan Cheng
fc0b80d974
Fix PR3784: If the source of a phi comes from a bb ended with an invoke, make sure the copy is inserted before the try range (unless it's used as an input to the invoke, then insert it after the last use), not at the end of the bb.
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Also re-apply r66140 which was disabled as a workaround.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66976 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 22:59:14 +00:00
Bill Wendling
9a507cd915
Revert r66920. It was causing failures in the self-hosting buildbot (in release
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mode).
Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes > /dev/null
0 bugpoint 0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1 bugpoint 0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2 libSystem.B.dylib 0x92f112bb _sigtramp + 43
3 libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4 bugpoint 0x00021d1c main + 92
5 bugpoint 0x00002106 start + 54
6 bugpoint 0x00000004 start + 18446744073709543220
Stack dump:
0. Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes
0 bugpoint 0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1 bugpoint 0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2 libSystem.B.dylib 0x92f112bb _sigtramp + 43
3 libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4 bugpoint 0x00021d1c main + 92
5 bugpoint 0x00002106 start + 54
6 bugpoint 0x00000006 start + 18446744073709543222
Stack dump:
0. Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll
Failed with signal(SIGBUS) at line 1
while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes
0 bugpoint 0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85
1 bugpoint 0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706
2 libSystem.B.dylib 0x92f112bb _sigtramp + 43
3 libSystem.B.dylib 0xffffffff _sigtramp + 1829694831
4 bugpoint 0x00021d1c main + 92
5 bugpoint 0x00002106 start + 54
Stack dump:
0. Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes
--- Reverse-merging (from foreign repository) r66920 into '.':
U include/llvm/Support/CallSite.h
U include/llvm/Instructions.h
U lib/Analysis/IPA/GlobalsModRef.cpp
U lib/Analysis/IPA/Andersens.cpp
U lib/Bitcode/Writer/BitcodeWriter.cpp
U lib/VMCore/Instructions.cpp
U lib/VMCore/Verifier.cpp
U lib/VMCore/AsmWriter.cpp
U lib/Transforms/Utils/LowerInvoke.cpp
U lib/Transforms/Scalar/SimplifyCFGPass.cpp
U lib/Transforms/IPO/PruneEH.cpp
U lib/Transforms/IPO/DeadArgumentElimination.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66953 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 21:15:59 +00:00
Dale Johannesen
d1c135c6e6
One more place where debug info affects codegen.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66930 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 19:23:20 +00:00
Gabor Greif
b14cda3c0d
Second installment of "BasicBlock operands to the back"
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changes.
For InvokeInst now all arguments begin at op_begin().
The Callee, Cont and Fail are now faster to get by
access relative to op_end().
This patch introduces some temporary uglyness in CallSite.
Next I'll bring CallInst up to a similar scheme and then
the uglyness will magically vanish.
This patch also exposes all the reliance of the libraries
on InvokeInst's operand ordering. I am thinking of taking
care of that too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 18:27:29 +00:00
Bill Wendling
0582ae99ba
Oops...I committed too much.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 04:39:26 +00:00
Bill Wendling
c7a09ab311
Temporarily XFAIL this test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 04:37:11 +00:00
Duncan Sands
58256f83c8
Revert commit 66140 since it caused several failures
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in the Ada testcase. Reverting this only covers up
the real problem, which is a nasty conceptual difficulty
in the phi elimination pass: when eliminating phi nodes
in landing pads, the register copies need to come before
the invoke, not at the end of the basic block which is
too late... See PR3784.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66826 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-12 21:13:42 +00:00
Dale Johannesen
a891518c4d
Skip interleaved debug info when fast-forwarding through
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allocations. Apparently the assumption is there is an
instruction (terminator?) following the allocation so I
am allowing the same assumption.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11 22:19:43 +00:00
Dale Johannesen
ff278b11bf
Removing a dead debug intrinsic shouldn't trigger
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another instcombine pass if we weren't going to make
one without debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10 21:19:49 +00:00
John Criswell
090c0a2ffd
Do not attempt to do parial redundancy elimination on void values.
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Also fixed a punctuation error in the header comment.
This fixes PR3775.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10 15:04:53 +00:00
Dan Gohman
9d10086797
Don't record the increment instruction; just recompute it from the Phi
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if needed. This simplifies the code a little, and is needed for an
upcoming refactoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 22:04:01 +00:00
Dan Gohman
3cfe6a4bc2
Fix a few more places where induction variable types were used
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where memory access types are needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66470 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 21:22:12 +00:00
Dan Gohman
bb5b49cb8d
Use ReplacedTy instead of recomputing the same value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66469 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 21:19:58 +00:00
Dan Gohman
0daeed270b
Use LoopInfo's getLoopLatch() instead of doing what it does manualy.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66467 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 21:14:16 +00:00
Dan Gohman
53f2ae268a
Don't use an induction variable type as a memory access type.
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Use VoidTy instead, to be properly conservative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 21:04:19 +00:00
Dan Gohman
21e7722868
Factor out the code that determines the memory access type
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of an instruction into a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66460 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 21:01:17 +00:00
Dan Gohman
f7912df4cb
Move the sorting of the StrideOrder array earlier so that it doesn't
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have to be done twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66449 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 20:46:50 +00:00
Dan Gohman
9f4ac31a94
Delete the isOnlyStride argument, which is unused.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 20:41:15 +00:00
Dan Gohman
80b0f8c062
Tidy some LSR debug output: announce the loop it's about to process
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before it does any processing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 20:34:59 +00:00
Chris Lattner
d7168ddb11
reimplement AliasSetTracker in terms of DenseMap instead of hash_map,
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hopefully no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66398 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 05:11:09 +00:00
Chris Lattner
29e641761e
teach SROA to handle promoting vector allocas with a memset into them into
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a vector type instead of into an integer type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 04:17:04 +00:00
Chris Lattner
c570487d45
Enhance SROA to "promote to scalar" allocas which are
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memcpy/memmove'd into or out of. This fixes a serious
perf issue that Nate ran into.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 04:04:21 +00:00
Chris Lattner
dfe964ce8c
change the MemIntrinsic get/setAlignment method to take an unsigned
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instead of a Constant*, which is what the clients of it really want.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 03:59:00 +00:00
Chris Lattner
3ce5e887ae
Introduce a new MemTransferInst pseudo class, which is a common
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parent between MemCpyInst and MemMoveInst, simplify some code to
use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66361 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 03:37:16 +00:00
Chris Lattner
57c03831cc
add a bunch more passes to the C bindings (PR3734), patch by
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Lennart Augustsson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 16:52:18 +00:00
Devang Patel
00e389c8c8
While converting an aggregate to scalare, ignore and remove aggregate's debug info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 07:03:54 +00:00
Chris Lattner
0070ce511e
this wasn't intended to go in.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 05:42:30 +00:00
Chris Lattner
cc14d25dd9
Change various llvm utilities to use PrettyStackTraceProgram in
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their main routines. This makes the tools print their argc/argv
commands if they crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66248 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 05:34:10 +00:00
Devang Patel
3f43a7021f
Do not count DbgInfoIntrinsic while estimating loop header size.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66245 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 03:51:30 +00:00
Devang Patel
c64bc16cae
Skip DbgInfoIntrinsic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66244 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 02:59:27 +00:00
Dale Johannesen
03afd02ca2
Don't assign rank numbers to debug intrinsic "calls".
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This is needed so debug info doesn't change codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 01:41:59 +00:00
Evan Cheng
67fca63da2
SRThreshold is meant to be inclusive.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66227 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06 00:56:43 +00:00
Evan Cheng
6fb8f421ee
Do not split edges to EH landing pads. It will cause code size explosion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66140 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 06:31:26 +00:00
Dale Johannesen
4084c4ee34
Fix another case where debug info was affecting
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codegen. I convinced myself it was OK to skip all
pointer bitcasts here too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66122 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 02:06:48 +00:00
Bill Wendling
e562149cdb
Add comment to emphasize that the while body is empty.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66115 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 01:08:35 +00:00
Dale Johannesen
a0a6637b25
Fix another case where a dbg.declare meant something
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had 2 uses instead of 1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66112 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 00:39:02 +00:00