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Author SHA1 Message Date
Duncan Sands
602234cdf3 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
Chris Lattner
8e83bd3891 add missing space. 
llvm-svn: 67995
 2009-03-29 13:26:05 +00:00
Chris Lattner
be9cd842ae add some comments, add a dyn_cast method. 
llvm-svn: 67992
 2009-03-29 07:03:30 +00:00
Chris Lattner
f3d562df05 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
Chris Lattner
696742399a add helper method. 
llvm-svn: 67989
 2009-03-29 06:32:46 +00:00
Chris Lattner
2c6632d760 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
Chris Lattner
b71e26c380 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
Chris Lattner
afd5e460c3 Add a PointerLikeTypeTraits specialization for uintptr_t 
llvm-svn: 67985
 2009-03-29 06:00:21 +00:00
Chris Lattner
8957cdb71d Value* only has 2 bits free as well. 
llvm-svn: 67984
 2009-03-29 05:45:43 +00:00
Chris Lattner
9dc97aa7bf 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
Chris Lattner
a78775615b 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
Chris Lattner
feee87e253 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
Chris Lattner
c512533ea0 teach SmallPtrSet that PointerIntPair is "basically a pointer". 
llvm-svn: 67970
 2009-03-29 00:18:42 +00:00
Chris Lattner
9b435e06e4 add a note 
llvm-svn: 67953
 2009-03-28 19:26:55 +00:00
Rafael Espindola
34f59009d1 Use array_lengthof 
llvm-svn: 67950
 2009-03-28 19:02:18 +00:00
Rafael Espindola
37522e768a Have only one definition of X86AddrNumOperands. 
llvm-svn: 67949
 2009-03-28 18:55:31 +00:00
Rafael Espindola
884992a7e9 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
Arnold Schwaighofer
76188bc8a1 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
Bill Wendling
475a59038c Update the Visual Studio docs. Patch by Stefanus! 
llvm-svn: 67940
 2009-03-28 10:24:15 +00:00
Arnold Schwaighofer
636127325b 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
Chris Lattner
3fb9928af4 declare everything as class to avoid angering the VC++ gods. 
llvm-svn: 67931
 2009-03-28 07:48:03 +00:00
Chris Lattner
294e633d95 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
Evan Cheng
a15fdaa292 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
Chris Lattner
601a4d8c70 move a large method out of line. 
llvm-svn: 67892
 2009-03-28 02:08:47 +00:00
Dan Gohman
b360b0390a Fix what surely must be a copy+pasto. 
llvm-svn: 67881
 2009-03-27 23:55:04 +00:00
Dan Gohman
401df03e2d 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
Jim Grosbach
93b0fc3ba8 remove trailing whitespace 
llvm-svn: 67874
 2009-03-27 23:06:27 +00:00
Gabor Greif
b61a9d41b9 "ghostify" the ilist<Function> sentinel 
llvm-svn: 67872
 2009-03-27 22:28:33 +00:00
Mike Stump
f25de0da23 Allow invertable -xno- style optins as well. 
llvm-svn: 67862
 2009-03-27 20:12:55 +00:00
Dan Gohman
88094aaaf9 Revert r67844. This fixes the llvm-gcc-4.2 build on Darwin. 
llvm-svn: 67856
 2009-03-27 18:37:13 +00:00
Julien Lerouge
eaa08f7d93 Fix build on MacOS 10.4 systems (suggested by Mike Smith). 
llvm-svn: 67855
 2009-03-27 18:18:00 +00:00
Dan Gohman
66fc2f0a88 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
Rafael Espindola
83ee99d7b0 Avoid hardcoding that X86 addresses have 4 operands. 
llvm-svn: 67848
 2009-03-27 15:57:50 +00:00
Rafael Espindola
7c113e5354 Use less hard coded constants to make the code less brittle. 
llvm-svn: 67846
 2009-03-27 15:45:05 +00:00
Duncan Sands
71bb115e1c 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
Rafael Espindola
38604d9598 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
Duncan Sands
e13276db7f 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
Mikhail Glushenkov
d1d0033738 Documentation update. 
Expand a bit on various '--*-graph' options.

llvm-svn: 67836
 2009-03-27 12:58:29 +00:00
Mikhail Glushenkov
b768a08651 -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
Duncan Sands
28e2a3fee7 Revert previous change in favour of an explanatory 
comment.

llvm-svn: 67833
 2009-03-27 11:35:00 +00:00
Duncan Sands
915db4b084 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
John Mosby
67ffa789e8 Shrink wrapping in PEI: initial release. Finishing development, enable with --shrink-wrap. 
llvm-svn: 67828
 2009-03-27 06:09:40 +00:00
Evan Cheng
00b79de6a7 Add a __builtin___memset_chk test. 
llvm-svn: 67815
 2009-03-27 02:45:14 +00:00
Dale Johannesen
9fd8bb432f One more place to skip debug info. 
llvm-svn: 67811
 2009-03-27 01:13:37 +00:00
Devang Patel
a2211c26d7 While hoisting an instruction, update alias info set tracker. 
llvm-svn: 67798
 2009-03-26 23:48:52 +00:00
Mike Stump
9ccd6c4c70 Update to account for driver renaming. 
llvm-svn: 67791
 2009-03-26 23:43:14 +00:00
Evan Cheng
ab6e38c88d -no-implicit-float means explicit fp operations are legal. 
llvm-svn: 67784
 2009-03-26 23:06:32 +00:00
Evan Cheng
86f6af35bf Add -march=x86. 
llvm-svn: 67783
 2009-03-26 23:03:32 +00:00
Mikhail Glushenkov
dd06b10f0b 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
Evan Cheng
1343fa32dc 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