32f4959ee4
update comment.
...
llvm-svn: 68060
2009-03-30 20:44:04 +00:00
2f52e6488f
Balance out quote in debug output.
...
llvm-svn: 68059
2009-03-30 20:32:22 +00:00
5f0d97c571
Fix grammar-o in comment.
...
llvm-svn: 68057
2009-03-30 20:30:02 +00:00
8aa8f5bf6a
add a PointerUnion3 class and generalize PointerUnion to work with
...
anything pointer-like, which may or may not actually be a pointer.
llvm-svn: 68056
2009-03-30 20:29:27 +00:00
73acaa8862
fix the PointerLikeTypeTraits specialization for PointerIntPair to
...
allow the traits to be specified as well.
llvm-svn: 68055
2009-03-30 20:28:50 +00:00
ff62c62b7c
Constify arguments in isSuccessor and isLayoutSuccessor.
...
llvm-svn: 68054
2009-03-30 20:06:29 +00:00
d3899dc52f
Update the polygen grammer to reflect that zext and sext are no longer
...
valid argument attributes (zeroext and signext are).
llvm-svn: 68053
2009-03-30 19:59:02 +00:00
169927e7ef
docs/TestingGuide.html: correction to prev. text (objdir!=srcdir required for running test-suite), removed refs to llvm-test
...
llvm-svn: 68051
2009-03-30 18:56:53 +00:00
57178e8822
Fix comment to match function name.
...
llvm-svn: 68050
2009-03-30 18:49:37 +00:00
7a78f3abd3
getEntryFor() may invalidate DenseMap iterator.
...
Walking an invalidated iterator is not a good idea.
llvm-svn: 68047
2009-03-30 18:34:47 +00:00
9d98cc6b93
Add ccc back for now.
...
llvm-svn: 68038
2009-03-30 17:43:04 +00:00
1a7432742c
Clearify local/global relocations wording
...
llvm-svn: 68037
2009-03-30 17:38:00 +00:00
56709fdffe
Fix thinko: put stuff with both global and local relocations into data.rel{.ro}, not .local
...
llvm-svn: 68036
2009-03-30 17:37:43 +00:00
71278a5be8
Tweak test for recent relro stuff
...
llvm-svn: 68035
2009-03-30 15:28:40 +00:00
255a3cbfb4
Fix infinite looping
...
llvm-svn: 68034
2009-03-30 15:28:21 +00:00
d5e8e93a92
Properly propagate Kind.
...
llvm-svn: 68033
2009-03-30 15:28:00 +00:00
7c5f3c40ca
Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness.
...
llvm-svn: 68032
2009-03-30 15:27:43 +00:00
c247fd396c
Add data.rel stuff
...
llvm-svn: 68031
2009-03-30 15:27:03 +00:00
a01a563813
fix some validation problems.
...
llvm-svn: 68026
2009-03-30 06:34:59 +00:00
471ed6e460
Forgot this test.
...
llvm-svn: 68025
2009-03-30 06:17:34 +00:00
b92a76ff4f
Clarify section on setting up and running test-suite
...
llvm-svn: 68023
2009-03-30 04:37:51 +00:00
d326656d9c
Updated the comment for isArithmeticShift() to match reality.
...
llvm-svn: 68016
2009-03-29 20:41:38 +00:00
8fde3036bf
Constify check. This fixes PR3900.
...
llvm-svn: 68013
2009-03-29 20:08:56 +00:00
f3cf04f900
Testcase for recent ro/relocs stuff
...
llvm-svn: 68008
2009-03-29 17:14:57 +00:00
bea241a5f5
IA64 is as weird as Alpha wrt r/o relocs :)
...
llvm-svn: 68007
2009-03-29 17:14:35 +00:00
014a86f216
Alpha always requires global relocations to be r/w regardless of PIC.
...
llvm-svn: 68006
2009-03-29 17:14:14 +00:00
088ebede53
Honour relocation behaviour stuff for ro objects
...
llvm-svn: 68005
2009-03-29 17:13:49 +00:00
7437b59caf
Extend the relocation tracker handler, so we can filter on different 'kinds' of relocations required.
...
llvm-svn: 68004
2009-03-29 17:13:18 +00:00
d21581eaa1
Fix PR3899: add support for extracting floats from vectors
...
when using -soft-float.
Based on a patch by Jakob Stoklund Olesen.
llvm-svn: 67996
2009-03-29 13:51:06 +00:00
6694cdf215
add missing space.
...
llvm-svn: 67995
2009-03-29 13:26:05 +00:00
5b52baeeef
add some comments, add a dyn_cast method.
...
llvm-svn: 67992
2009-03-29 07:03:30 +00:00
e50f47971b
When forming sentinels for empty/tombstone, make sure to respect the
...
pointer's expected number of zero low-bits.
This should fix the breakage I introduced recently.
llvm-svn: 67990
2009-03-29 06:33:22 +00:00
3a6dc751ac
add helper method.
...
llvm-svn: 67989
2009-03-29 06:32:46 +00:00
a9c6de15fb
Add a simple type-safe bit-mangling pointer union class. This allows
...
you to do things like:
/// PointerUnion<int*, float*> P;
/// P = (int*)0;
/// printf("%d %d", P.is<int*>(), P.is<float*>()); // prints "1 0"
/// X = P.get<int*>(); // ok.
/// Y = P.get<float*>(); // runtime assertion failure.
/// Z = P.get<double*>(); // does not compile.
/// P = (float*)0;
/// Y = P.get<float*>(); // ok.
/// X = P.get<int*>(); // runtime assertion failure.
llvm-svn: 67987
2009-03-29 06:06:02 +00:00
35c0232cb0
Allow a specific PointerIntPair instance to use a specific Pointer trait:
...
some pointer instances have properties that not all of a type have.
llvm-svn: 67986
2009-03-29 06:02:20 +00:00
d4ff5fce81
Add a PointerLikeTypeTraits specialization for uintptr_t
...
llvm-svn: 67985
2009-03-29 06:00:21 +00:00
9bb25a192a
Value* only has 2 bits free as well.
...
llvm-svn: 67984
2009-03-29 05:45:43 +00:00
eb71b17705
Replace the PointerLikeTypeTraits::getNumLowBitsAvailable
...
function with a new NumLowBitsAvailable enum, which makes the
value available as an integer constant expression.
Add PointerLikeTypeTraits specializations for Instruction* and
Use** since they are only guaranteed 4-byte aligned.
Enhance PointerIntPair to know about (and enforce) the alignment
specified by PointerLikeTypeTraits. This should allow things
like PointerIntPair<PointerIntPair<void*, 1,bool>, 1, bool>
because the inner one knows that 2 low bits are free.
llvm-svn: 67979
2009-03-29 04:32:37 +00:00
a00f0d7e4c
rename PointerLikeTypeInto to PointerLikeTypeTraits, add trait for
...
# low bits free, and move to its own header.
llvm-svn: 67973
2009-03-29 00:39:30 +00:00
8eda11bd9d
now that you can put a PointerIntPair in a SmallPtrSet, remove some
...
hackish workarounds from memdep
llvm-svn: 67971
2009-03-29 00:24:04 +00:00
dc2999b4df
teach SmallPtrSet that PointerIntPair is "basically a pointer".
...
llvm-svn: 67970
2009-03-29 00:18:42 +00:00
356d974a93
add a note
...
llvm-svn: 67953
2009-03-28 19:26:55 +00:00
1f11c3c36f
Use array_lengthof
...
llvm-svn: 67950
2009-03-28 19:02:18 +00:00
6ff3dabbb4
Have only one definition of X86AddrNumOperands.
...
llvm-svn: 67949
2009-03-28 18:55:31 +00:00
c2a17d3022
Make code a bit less brittle by no hardcoding the number
...
of operands in an address in so many places.
llvm-svn: 67945
2009-03-28 17:03:24 +00:00
e622cbf385
Make check in CheckTailCallReturnConstraints for ignorable instructions between
...
a CALL and a RET node more generic. Add a test for tail calls with a void
return.
llvm-svn: 67943
2009-03-28 12:36:29 +00:00
c619aaf122
Update the Visual Studio docs. Patch by Stefanus!
...
llvm-svn: 67940
2009-03-28 10:24:15 +00:00
83d5420d02
Enable tail call optimization for functions that return a struct (bug 3664) and for functions that return types that need extending (e.g i1).
...
llvm-svn: 67934
2009-03-28 08:33:27 +00:00
0527eda02e
declare everything as class to avoid angering the VC++ gods.
...
llvm-svn: 67931
2009-03-28 07:48:03 +00:00
dec48eab86
add a traits class for SmallPtrSet that allows us to stick things that are
...
"basically pointers" into it.
llvm-svn: 67930
2009-03-28 07:44:53 +00:00
fd81c73cde
Optimize some 64-bit multiplication by constants into two lea's or one lea + shl since imulq is slow (latency 5). e.g.
...
x * 40
=>
shlq $3, %rdi
leaq (%rdi,%rdi,4), %rax
This has the added benefit of allowing more multiply to be folded into addressing mode. e.g.
a * 24 + b
=>
leaq (%rdi,%rdi,2), %rax
leaq (%rsi,%rax,8), %rax
llvm-svn: 67917
2009-03-28 05:57:29 +00:00
7516668998
move a large method out of line.
...
llvm-svn: 67892
2009-03-28 02:08:47 +00:00
2785e4be37
Fix what surely must be a copy+pasto.
...
llvm-svn: 67881
2009-03-27 23:55:04 +00:00
6d75876473
Initialize LiveOutInfo's APInt members to zero, as APInt's
...
default constructor produces an uninitialized APInt.
This fixes PR3896.
llvm-svn: 67879
2009-03-27 23:51:02 +00:00
669f1d0b0b
remove trailing whitespace
...
llvm-svn: 67874
2009-03-27 23:06:27 +00:00
41c8515b1b
"ghostify" the ilist<Function> sentinel
...
llvm-svn: 67872
2009-03-27 22:28:33 +00:00
ced6a2be04
Allow invertable -xno- style optins as well.
...
llvm-svn: 67862
2009-03-27 20:12:55 +00:00
8680802b1f
Revert r67844. This fixes the llvm-gcc-4.2 build on Darwin.
...
llvm-svn: 67856
2009-03-27 18:37:13 +00:00
15833b93cf
Fix build on MacOS 10.4 systems (suggested by Mike Smith).
...
llvm-svn: 67855
2009-03-27 18:18:00 +00:00
3f50cb6cd4
Fix this test so that it doesn't spuriously fail due to some
...
unrelated debugging output happening to contain the string "store".
llvm-svn: 67849
2009-03-27 16:17:22 +00:00
705f2a6cd2
Avoid hardcoding that X86 addresses have 4 operands.
...
llvm-svn: 67848
2009-03-27 15:57:50 +00:00
227815437a
Use less hard coded constants to make the code less brittle.
...
llvm-svn: 67846
2009-03-27 15:45:05 +00:00
75d7e77a58
Reapply r66415, which was reverted in r66426 for
...
causing a bootstrap failure. Bootstraps here on
x86-32-linux and x86-64-linux. Requested by the
author Gabor Greif who says that a bug that might
have been causing the failure has since been fixed.
llvm-svn: 67844
2009-03-27 15:29:38 +00:00
e728019392
I am trying to add a segment to the X86 addresses matching to
...
improve TLS support (see http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090309/075220.html ), but that code is VERY brittle.
This patch just makes it a bit more resistant.
llvm-svn: 67843
2009-03-27 15:26:30 +00:00
3241b74f69
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
llvm-svn: 67839
2009-03-27 14:56:47 +00:00
0f78c2721b
Documentation update.
...
Expand a bit on various '--*-graph' options.
llvm-svn: 67836
2009-03-27 12:58:29 +00:00
f4be420def
-write-graph now can be used with -o.
...
Makes it possible to set the output file name.
llvm-svn: 67835
2009-03-27 12:57:14 +00:00
99d0b2353e
Revert previous change in favour of an explanatory
...
comment.
llvm-svn: 67833
2009-03-27 11:35:00 +00:00
af7ae6ce3c
A Release-Asserts build makes it sound like assertions
...
are turned on, while in fact they are turned off. Name
this Release-NoAsserts instead.
llvm-svn: 67831
2009-03-27 09:41:56 +00:00
a1be2dcd63
Shrink wrapping in PEI: initial release. Finishing development, enable with --shrink-wrap.
...
llvm-svn: 67828
2009-03-27 06:09:40 +00:00
87a801af59
Add a __builtin___memset_chk test.
...
llvm-svn: 67815
2009-03-27 02:45:14 +00:00
4026b041ce
One more place to skip debug info.
...
llvm-svn: 67811
2009-03-27 01:13:37 +00:00
fe7c0492a0
While hoisting an instruction, update alias info set tracker.
...
llvm-svn: 67798
2009-03-26 23:48:52 +00:00
a0c86128ed
Update to account for driver renaming.
...
llvm-svn: 67791
2009-03-26 23:43:14 +00:00
d88ebc352c
-no-implicit-float means explicit fp operations are legal.
...
llvm-svn: 67784
2009-03-26 23:06:32 +00:00
99c16729d3
Add -march=x86.
...
llvm-svn: 67783
2009-03-26 23:03:32 +00:00
87aa96ddf3
Fix misc. small issues with debug visualization.
...
Detailed bug report:
http://llvm.org/bugs/show_bug.cgi?id=3873
llvm-svn: 67768
2009-03-26 21:23:48 +00:00
904f14663d
tADDhirr is a thumb instruction. Do not allow this code to be reached in non-thumb mode.
...
llvm-svn: 67765
2009-03-26 19:09:01 +00:00
76a561f35e
Don't assign a new stack slot if the pre-alloc splitter already assigned one.
...
llvm-svn: 67764
2009-03-26 18:53:38 +00:00
975c1cb41a
fix a few spelling errors and typos
...
llvm-svn: 67758
2009-03-26 16:17:51 +00:00
4bae1ac5e8
Use 'bool' for FoundRC
...
llvm-svn: 67750
2009-03-26 14:45:34 +00:00
55a2cd736d
Add -f to RUN line.
...
llvm-svn: 67744
2009-03-26 06:17:54 +00:00
aa28be652c
Pull transform from target-dependent code into target-independent code.
...
llvm-svn: 67742
2009-03-26 06:14:09 +00:00
f661d328c4
no need for eh info
...
llvm-svn: 67740
2009-03-26 05:51:18 +00:00
78b7cbe668
fix warning in -asserts mode.
...
llvm-svn: 67739
2009-03-26 05:29:34 +00:00
f38fd11a26
fix some warnings in release-asserts mode.
...
llvm-svn: 67738
2009-03-26 05:28:26 +00:00
3c04970f31
fix an apparently real bug exposed by a warning in -asserts mode.
...
llvm-svn: 67737
2009-03-26 05:28:14 +00:00
3871781c7b
fix warning in -asserts build.
...
llvm-svn: 67736
2009-03-26 05:25:59 +00:00
996749e912
Add testcase for r67728.
...
llvm-svn: 67729
2009-03-26 01:52:47 +00:00
94f299f2c5
Match this pattern so that we can generate simpler code:
...
%a = ...
%b = and i32 %a, 2
%c = srl i32 %b, 1
%d = br i32 %c,
into
%a = ...
%b = and %a, 2
%c = X86ISD::CMP %b, 0
%d = X86ISD::BRCOND %c ...
This applies only when the AND constant value has one bit set and the SRL
constant is equal to the log2 of the AND constant. The back-end is smart enough
to convert the result into a TEST/JMP sequence.
llvm-svn: 67728
2009-03-26 01:47:50 +00:00
189d67181c
Doxygen-ify comments.
...
llvm-svn: 67727
2009-03-26 01:46:56 +00:00
db90560c1c
Skip debug info one more place. (This one gets
...
called from llc, not opt, but it's an IR level
optimization nevertheless.)
llvm-svn: 67724
2009-03-26 01:15:07 +00:00
4555618854
Before deleting a basic block, give other loop passes a chance cleanup analysis values, related to the instructions in the basic block.
...
llvm-svn: 67719
2009-03-25 23:57:48 +00:00
292ea55130
Modify getRegisterValueType() to allow for a register being in mutliple
...
register classes. Before, MVT::Other would be returned anytime a reg was
in multiple register classes. Now, MVT::Other is only returned if the types
for those register classes differ.
llvm-svn: 67714
2009-03-25 23:28:33 +00:00
1e550e15cc
Add a test case for PR3779: when to promote the function return value.
...
llvm-svn: 67702
2009-03-25 20:30:19 +00:00
2e9f42bed5
Revert 67132. This is breaking some objective-c apps.
...
Also fixes SDISel so it *does not* force promote return value if the function is not marked signext / zeroext.
llvm-svn: 67701
2009-03-25 20:20:11 +00:00
1bb604aff5
One more test.
...
llvm-svn: 67694
2009-03-25 17:45:18 +00:00
eb1646d28c
When optimizing with debug info, don't keep the
...
stoppoint nodes around until Legalize; doing this
imposed an ordering on a sequence of loads that
came from different lines, interfering with scheduling.
llvm-svn: 67692
2009-03-25 17:36:08 +00:00
4b6c049b3f
Add __builtin___memcpy_chk tests.
...
llvm-svn: 67691
2009-03-25 16:49:31 +00:00
39d0946db5
These tests pass on linux.
...
llvm-svn: 67689
2009-03-25 16:43:59 +00:00
b86a445d39
Add a __builtin_object_size test.
...
llvm-svn: 67688
2009-03-25 16:29:33 +00:00
56a95f6c16
Fix a bug in our autoupgrade support: in an argument list to a function
...
call, we should treat "i64 zext" as the start of a constant expr, but
"i64 0 zext" as an argument with an obsolete attribute on it (this form
is already tested by test/Assembler/2007-07-30-AutoUpgradeZextSext.ll).
Make the autoupgrade logic more discerning to avoid treating "i64 zext"
as an old-style attribute, causing us to reject a valid constant expr.
This fixes PR3876.
llvm-svn: 67682
2009-03-25 06:36:36 +00:00
2755edf4c4
do not rely on callee being operand 0
...
llvm-svn: 67681
2009-03-25 06:32:59 +00:00
68b0881d94
Do not ignore DW_TAG_class_type!
...
llvm-svn: 67675
2009-03-25 03:52:06 +00:00
499d5f333f
CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose.
...
llvm-svn: 67669
2009-03-25 01:48:21 +00:00
5e5a63cf8f
CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose.
...
llvm-svn: 67668
2009-03-25 01:47:28 +00:00
9966403e90
Don't print global names twice with -asm-verbose.
...
llvm-svn: 67667
2009-03-25 01:08:42 +00:00
7f570d5491
Revert r67655 and r67656, as they are breaking the build. I'm
...
not going to persue this further at this time.
llvm-svn: 67666
2009-03-25 00:52:11 +00:00
c3b2111d97
Fix PR3874 by restoring a condition I removed, but making it more
...
precise than it used to be.
llvm-svn: 67662
2009-03-25 00:28:58 +00:00
a6e85a19c6
Do not ignore DW_TAG_class_type!
...
llvm-svn: 67661
2009-03-25 00:28:40 +00:00
1e7602a20e
LLVM's master Makefile.common is in LLVM_SRC_ROOT, not LLVM_OBJ_ROOT.
...
llvm-svn: 67658
2009-03-25 00:09:05 +00:00
9e94538005
oops, I intended to remove this, not comment it out. Thanks Duncan!
...
llvm-svn: 67657
2009-03-24 23:48:25 +00:00
9d4d283024
Regenerate configure.
...
llvm-svn: 67656
2009-03-24 23:47:11 +00:00
34be8be297
Fix paths; AutoRegen.sh changes its current working directory to be the
...
autoconf directory, but these paths need to be relative to the main
source directory.
llvm-svn: 67655
2009-03-24 23:46:25 +00:00
afcd6a3133
Update for autoconf 2.6x;
...
llvm-svn: 67654
2009-03-24 23:45:13 +00:00
d1d2c50ea7
Converted a1.ll to unittests.
...
llvm-svn: 67652
2009-03-24 21:36:09 +00:00
61837e6dc8
Mention explicitly that the Ada front-end will not bootstrap.
...
The configure line had --disable-bootstrap, but it was not
clear that this is essential.
llvm-svn: 67651
2009-03-24 21:16:39 +00:00
f413a88839
Fix PR3845: Avoid stale MachineInstruction pointer reference.
...
llvm-svn: 67649
2009-03-24 20:33:17 +00:00
24e02b1043
Fix bash-isms.
...
llvm-svn: 67647
2009-03-24 20:21:37 +00:00
e7e5becdd2
simplify logic and get rid of the assumption that operand 0 is the callee
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llvm-svn: 67642
2009-03-24 19:28:39 +00:00
306813cbbb
canonicalize inttoptr and ptrtoint instructions which cast pointers
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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.
llvm-svn: 67638
2009-03-24 18:35:40 +00:00
4d7e4ee799
fix one more fp80 case (used only by Interpreter)
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and streamline code here a bit.
llvm-svn: 67636
2009-03-24 18:16:17 +00:00
d9eb41177a
two changes:
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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.
llvm-svn: 67635
2009-03-24 18:15:30 +00:00
f259f3f312
Change JIT for different layout of fp80.
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llvm-svn: 67629
2009-03-24 17:35:45 +00:00
9fc30d5c30
Add a testcase for the scheduling heuristic introduced in r67586.
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llvm-svn: 67622
2009-03-24 16:38:27 +00:00
c35847e109
more tidying: name the components of PhysReg in the case when
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the target constraint specifies a specific physreg.
llvm-svn: 67618
2009-03-24 15:27:37 +00:00
42eceb3491
Tidy a bit more.
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llvm-svn: 67617
2009-03-24 15:25:07 +00:00
246eda43bd
simplify this code a bit now that "allocation to a vreg class" can never
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fail.
llvm-svn: 67616
2009-03-24 15:22:11 +00:00
efd2d44aa5
I was convinced that it's ok to allow a second i8 return value
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to be returned in DL. LLVM's multiple-return-value support is
not ABI-conforming; front-ends that wish to have code emitted
that conforms to an ABI are currently expected to make
arrangements for this on their own rather than assuming that
multiple-return-values will automatically do the right thing.
This commit doesn't fundamentally change this situation.
llvm-svn: 67588
2009-03-24 01:04:34 +00:00
f3746cbc56
Minor compile-time optimization; don't bother checking
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canClobberPhysRegDefs if the successor node doesn't
clobber any physical registers.
llvm-svn: 67587
2009-03-24 00:50:07 +00:00
9a658d72db
Add a pre-pass to the burr-list scheduler which makes adjustments to
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help out the register pressure reduction heuristics in the case of
nodes with multiple uses. Currently this uses very conservative
heuristics, so it doesn't have a broad impact, but in cases where it
does help it can make a big difference.
llvm-svn: 67586
2009-03-24 00:49:12 +00:00
a774a99245
Do not emit comments unless -asm-verbose.
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llvm-svn: 67580
2009-03-24 00:17:40 +00:00
32dfb35281
Use a SmallPtrSet instead of std::set.
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llvm-svn: 67578
2009-03-23 23:39:20 +00:00
7fe1b0f50f
Fix a bug in spill weight computation. If the alias is a super-register, and the super-register is in the register class we are trying to allocate. Then add the weight to all sub-registers of the super-register even if they are not aliases.
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e.g. allocating for GR32, bh is not used, updating bl spill weight.
bl should get the same spill weight otherwise it will be choosen
as a spill candidate since spilling bh doesn't make ebx available.
This fix PR2866.
llvm-svn: 67574
2009-03-23 22:57:19 +00:00
c8e54db801
Add sanity check in Clang TableGen backend to check if 'Component' is a string.
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llvm-svn: 67565
2009-03-23 21:54:33 +00:00
93eefa0043
Fix internal representation of fp80 to be the
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same as a normal i80 {low64, high16} rather
than its own {high64, low16}. A depressing number
of places know about this; I think I got them all.
Bitcode readers and writers convert back to the old
form to avoid breaking compatibility.
llvm-svn: 67562
2009-03-23 21:16:53 +00:00
2441a7df96
README.txt: test commit w/blank line appended
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llvm-svn: 67560
2009-03-23 21:00:45 +00:00
ed0e8d44ce
When unfolding a load during scheduling, the new operator node has
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a data dependency on the load node, so it really needs a
data-dependence edge to the load node, even if the load previously
existed.
And add a few comments.
llvm-svn: 67554
2009-03-23 20:20:43 +00:00
4dc0c6697f
Update test for pr3864.
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llvm-svn: 67545
2009-03-23 18:27:36 +00:00
f858466018
Fix PR3391 and PR3864. Reg allocator infinite looping.
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llvm-svn: 67544
2009-03-23 18:24:37 +00:00
f477262e69
Don't set SUnit::hasPhysRegDefs to true unless the defs are
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actually have uses, which reflects the way it's used.
llvm-svn: 67540
2009-03-23 17:39:36 +00:00
a366da1bf7
Fix canClobberPhysRegDefs to check all SDNodes grouped together
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in an SUnit, instead of just the first one. This fix is needed
by some upcoming scheduler changes.
llvm-svn: 67531
2009-03-23 16:23:01 +00:00
52c278e54d
Add a new bit to SUnit to record whether a node has implicit physreg
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defs, regardless of whether they are actually used.
llvm-svn: 67528
2009-03-23 16:10:52 +00:00
4f2fea1a21
Now that errs() is properly non-buffered, there's no need to
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explicitly flush it.
llvm-svn: 67526
2009-03-23 15:57:19 +00:00
7135a9d166
Clarify a comment.
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llvm-svn: 67525
2009-03-23 15:54:02 +00:00
21ff35195e
LoopVR is not CFGOnly.
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llvm-svn: 67524
2009-03-23 15:50:52 +00:00
5aabc424b1
Enhance LiveValues to work on PHI operands.
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llvm-svn: 67523
2009-03-23 15:49:37 +00:00
87cd443ae9
Make getOperandNumForIncomingValue and getOperandNumForIncomingBlock
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static member functions, and add getIncomingValueNumForOperand
and getIncomingBlockNumForOperand, which are the respective
inverses.
llvm-svn: 67522
2009-03-23 15:48:29 +00:00
4a683478d5
Correct some comments. Operand numbers start at 0.
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llvm-svn: 67518
2009-03-23 15:40:10 +00:00
968c3b0d6e
Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies.
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llvm-svn: 67512
2009-03-23 08:01:15 +00:00
Chris Lattner