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225 Commits

Author SHA1 Message Date
Chris Lattner
ed0dca6a5d GVRequiresExtraLoad is now never used for calls, simplify it based on this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75232 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-10 05:52:02 +00:00
Chris Lattner
754b7650c2 actually, just eliminate PCRelGVRequiresExtraLoad. It makes the code 
more complex and slow than just directly testing what we care about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75231 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-10 05:48:03 +00:00
Chris Lattner
e6c07b52e7 There is only one case where GVRequiresExtraLoad returns true for calls: 
split its handling out to PCRelGVRequiresExtraLoad, and simplify code
based on this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75230 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-10 05:45:15 +00:00
Chris Lattner
04b304caf6 the "isDirectCall" operand of GVRequiresRegister is always false, eliminate it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75229 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-10 05:37:11 +00:00
Chris Lattner
15a380a035 simplify some code based on the fact that picstyles != none are only valid 
in pic or dynamic-no-pic mode. Also, x86-64 never used picstylegot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75101 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-09 04:39:06 +00:00
Chris Lattner
73b5b71369 Reduce indentation in GVRequiresExtraLoad. Return true for windows 
with DLLImport symbols even when in -static mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75093 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-09 03:27:27 +00:00
David Greene
343dadbb36 Add feature flags for AVX and FMA and fix some SSE4A feature flag 
initialization problems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74350 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-26 22:46:54 +00:00
Anton Korobeynikov
0eebf653a7 The attached patches implement most of the ARM AAPCS-VFP hard float 
ABI. The missing piece is support for putting "homogeneous aggregates"
into registers.

Patch by Sandeep Patel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73095 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-08 22:53:56 +00:00
Stefanus Du Toit
8cf5ab153d Update CPU capabilities for AMD machines 
- added processors k8-sse3, opteron-sse3, athlon64-sse3, amdfam10, and
barcelona with appropriate sse3/4a levels
- added FeatureSSE4A for amdfam10 processors
in X86Subtarget:
- added hasSSE4A
- updated AutoDetectSubtargetFeatures to detect SSE4A
- updated GetCurrentX86CPU to detect family 15 with sse3 as k8-sse3 and
family 10h as amdfam10

New processor names match those used by gcc.

Patch by Paul Redmond!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-26 21:04:35 +00:00
Evan Cheng
d7f666a869 Try again. Allow call to immediate address for ELF or when in static relocation mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72160 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-20 04:53:57 +00:00
Chris Lattner
bc58322d6a add support for detecting process features on win64, patch by 
Nicolas Capens!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70057 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 18:27:23 +00:00
Duncan Sands
667d4b8de6 Introduce new linkage types linkonce_odr, weak_odr, common_odr 
and extern_weak_odr.  These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global.  In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time.   This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function.  If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body.  The
code generators on the other hand map weak and weak_odr linkage
to the same thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-07 15:45:40 +00:00
Mon P Wang
9feb5dd568 Added another darwin subtarget 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65662 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 00:25:30 +00:00
Dan Gohman
605679f0cd Tevert part of the x86 subtarget logic changes: when -march=x86-64 
is given, override the subtarget settings and enable 64-bit support.
This restores the earlier behavior, and fixes regressions on
Non-64-bit-capable x86-32 hosts.

This isn't necessarily the best approach, but the most obvious
alternative is to require -mcpu=x86-64 or -mattr=+64bit to be used
with -march=x86-64 when the host doesn't have 64-bit support. This
makes things little more consistent, but it's less convenient, and
it has the practical drawback of requiring lots of test changes, so
I opted for the above approach for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63642 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-03 18:53:21 +00:00
Dan Gohman
f75e5b4d8c Change Feature64Bit to not imply FeatureSSE2. All x86-64 hardware has 
SSE2, however it's possible to disable SSE2, and the subtarget support
code thinks that if 64-bit implies SSE2 and SSE2 is disabled then
64-bit should also be disabled. Instead, just mark all the 64-bit
subtargets as explicitly supporting SSE2.

Also, move the code that makes -march=x86-64 enable 64-bit support by
default to only apply when there is no explicit subtarget. If you
need to specify a subtarget and you want 64-bit code, you'll need to
select a subtarget that supports 64-bit code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63575 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-03 00:04:43 +00:00
Torok Edwin
b68a88bd48 Only force SSE level if it is not correct. 
Add an assert to check HasX86_64 status.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63552 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-02 21:57:34 +00:00
Torok Edwin
38870ed13c remove #if 0 code on Bill's request. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63542 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-02 20:23:02 +00:00
Torok Edwin
3f142c36ad Implement -mno-sse: if SSE is disabled on x86-64, don't store XMM on stack for 
var-args, and don't allow FP return values


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63495 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-01 18:15:56 +00:00
Torok Edwin
afb564c697 should have removed the + when manually applying a patch! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 20:29:34 +00:00
Torok Edwin
c8ad2d2abf revert this patch for now, because Codegen does still want to generate SSE code, 
for example in the case of va-args. XFAIL associated tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 20:21:24 +00:00
Torok Edwin
7f1d5252c7 If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62967 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 17:58:56 +00:00
Rafael Espindola
bb46f52027 Add the private linkage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 20:18:42 +00:00
Evan Cheng
7877112775 Atom and Core i7 do not have same model number after all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61686 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-05 08:45:01 +00:00
Evan Cheng
0be6d3fb2a Add Intel processors core i7 and atom. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61603 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-03 04:24:44 +00:00
Evan Cheng
5b925c031d Fix PR3210: Detect more Intel processors. Patch by Torok Edwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61602 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-03 04:04:46 +00:00
Evan Cheng
ccb6976a69 Do not isel load folding bt instructions for pentium m, core, core2, and AMD processors. These are significantly slower than a load followed by a bt of a register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61557 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-02 05:35:45 +00:00
Evan Cheng
018b7ee91a Fix x86 CPU id detection to identify Penryn (and future processors). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61556 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-02 05:29:20 +00:00
Dan Gohman
8749b61178 Add initial support for back-scheduling address computations, 
especially in the case of addresses computed from loop induction
variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61075 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-16 03:35:01 +00:00
Evan Cheng
e4d1082b2c Re-apply 60689 now my head is screwed on right. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 19:29:03 +00:00
Dan Gohman
2d4e9bc922 Revert 60689. It caused many regressions on Darwin targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 17:38:02 +00:00
Evan Cheng
dda346aa71 Perform cheap checks first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-08 06:52:43 +00:00
Dale Johannesen
203af58aea Make LoopStrengthReduce smarter about hoisting things out of 
loops when they can be subsumed into addressing modes.

Change X86 addressing mode check to realize that
some PIC references need an extra register.
(I believe this is correct for Linux, if not, I'm sure
someone will tell me.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-05 21:47:27 +00:00
Evan Cheng
ae94e59416 Re-did 60519. It turns out Darwin's handling of hidden visibility symbols are a bit more complicate than I expected. Both declarations and weak definitions still need a stub indirection. However, the stubs are in data section and they contain the addresses of the actual symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-05 01:06:39 +00:00
Bill Wendling
a8103dad4e Temporarily revert r60519. It was causing a bootstrap failure: 
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT barrier.lo -MD -MP -MF .deps/barrier.Tpo -c ../../../llvm-gcc.src/libgomp/barrier.c  -fno-common -DPIC -o .libs/barrier.o
checking for sys/file.h... /var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:non-relocatable subtraction expression, "_gomp_tls_key" minus "L1$pb"
/var/folders/zG/zGE-ZJOGFiGjv0B5cs5oYE+++TM/-Tmp-//cc34Jg5P.s:13:symbol: "_gomp_tls_key" can't be undefined in a subtraction expression
make[4]: *** [barrier.lo] Error 1
make[4]: *** Waiting for unfinished jobs....
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -DHAVE_CONFIG_H -I. -I../../../llvm-gcc.src/libgomp -I. -I../../../llvm-gcc.src/libgomp/config/posix -I../../../llvm-gcc.src/libgomp -Wall -pthread -Werror -O2 -g -O2 -MT alloc.lo -MD -MP -MF .deps/alloc.Tpo -c ../../../llvm-gcc.src/libgomp/alloc.c -o alloc.o >/dev/null 2>&1
yes
checking for sys/param.h... make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgomp] Error 2
make[1]: *** Waiting for unfinished jobs....



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-04 04:07:00 +00:00
Evan Cheng
eb83dfde66 Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60519 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-04 01:56:50 +00:00
Duncan Sands
f9a67a8943 Fix build with gcc-4.4: it doesn't like PICStyle 
being both a namespace and a variable name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60208 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-28 09:29:37 +00:00
Dan Gohman
b8cab9227a Fix command-line option printing to print two spaces where needed, 
instead of requiring all "short description" strings to begin with
two spaces. This makes these strings less mysterious, and it fixes
some cases where short description strings mistakenly did not
begin with two spaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57521 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-14 20:25:08 +00:00
Bill Wendling
6e08738d4b Just don't transform this memset into "bzero" if no-builtin is specified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56888 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 22:05:33 +00:00
Bill Wendling
6f287b22d2 Add the new `-no-builtin' flag. This flag is meant to mimic the GCC 
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56885 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-09-30 21:22:07 +00:00
Evan Cheng
817a6a9eaa x86-64 PIC JIT fixes: do not generate the extra load for external GV's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53661 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 01:34:02 +00:00
Anton Korobeynikov
3b48591a84 Revert accidentially added stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53321 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:29:08 +00:00
Anton Korobeynikov
e87f52d722 Switch to new section name handling facility 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53316 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-09 13:27:16 +00:00
Evan Cheng
cb2627395d Back out 53091 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 18:11:29 +00:00
Anton Korobeynikov
f550f472ee llvm-gcc sometimes marks external declarations hidden, because intializers are 
processed separately. Honour such situation and emit PIC relocations properly
in such case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53091 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:43:14 +00:00
Rafael Espindola
da5860fa8b Don't use the GOT for symbols that are not externally visible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-02 07:52:43 +00:00
Dale Johannesen
aafce77b17 Add CommonLinkage; currently tentative definitions 
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51118 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-14 20:12:51 +00:00
Dan Gohman
844731a7f1 Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-13 00:00:25 +00:00
Mon P Wang
63307c335a Added addition atomic instrinsics and, or, xor, min, and max. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50663 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 19:05:59 +00:00
Dan Gohman
94bbdc8c25 Fix IsLinux being uninitialized on non-Linux targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50660 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 18:43:07 +00:00
Dan Gohman
600bf16cf7 Use a dedicated IsLinux flag instead of an ELFLinux TargetType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50649 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 16:11:31 +00:00
Dan Gohman
a779a9899a Add AsmPrinter support for emitting a directive to declare that 
the code being generated does not require an executable stack.

Also, add target-specific code to make use of this on Linux
on x86. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50634 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-05 00:28:39 +00:00
Anton Korobeynikov
45709ae09b Make stack alignment options global for all targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50157 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-23 18:18:10 +00:00
Anton Korobeynikov
890fe888be Provide ABI-correct stack alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50154 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-23 18:16:16 +00:00
Evan Cheng
dc00858e11 Initialize X863DNowLevel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49808 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-16 19:03:02 +00:00
Anton Korobeynikov
78c80fdbdd Provide option for stack alignment override 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49593 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 22:12:22 +00:00
Dan Gohman
68d599df37 Speculatively micro-optimize memory-zeroing calls on Darwin 10. 
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
Anton Korobeynikov
2b4f780585 Honour built-in defines on win64 targets for automatically subtarget recognize. 
Force stack alignment to 16 bytes on win targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-22 21:18:22 +00:00
Anton Korobeynikov
508f0fdb53 Recognize "windows" in target triple, not only "win32" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48694 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-22 21:12:53 +00:00
Anton Korobeynikov
7c1c261272 Remove bunch of gcc 4.3-related warnings from Target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47369 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:22:39 +00:00
Dale Johannesen
ab1a0354ec Remove warning about 64-bit code on processor 
that doesn't support it.  Per Chris.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47162 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:09:51 +00:00
Evan Cheng
be3bf42331 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 08:53:49 +00:00
Nate Begeman
63ec90a6a8 SSE 4.1 Intrinsics and detection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46681 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 07:18:54 +00:00
Anton Korobeynikov
49964d6847 Enable PIC codegen on x86-64/linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46198 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-20 13:58:16 +00:00
Duncan Sands
e51775dc5e Use size_t to store Pos, avoid truncating value 
on 64-bit builds.  Analysis and original patch
by Török Edwin.  Code audit found another place
with the same problem, also fixed here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-08 10:06:15 +00:00
Chris Lattner
7ad92d81e2 darwin9 and above support aligned common symbols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45494 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-02 19:44:55 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 20:36:04 +00:00
Rafael Espindola
fc05f402ea Make ARM an X86 memcpy expansion more similar to each other. 
Now both subtarget define getMaxInlineSizeThreshold and the expansion uses it.

This should not change generated code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43552 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-31 11:52:06 +00:00
Evan Cheng
f6844ca0e4 Mac OS X X86-64 low 4G address not available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 23:45:51 +00:00
Gabor Greif
a99be51bf5 Here is the bulk of the sanitizing. 
Almost all occurrences of "bytecode" in the sources have been eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37913 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 17:07:56 +00:00
Jeff Cohen
c398709525 In the event that some really old non-Intel or -AMD CPU is encountered... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:59:44 +00:00
Jeff Cohen
22114c319a Before assuming that the original code didn't work for Athlon64, the person who 
replaced it with a FIXME should have determined what did work.  Then he would have
realized that the code was in fact correct, and would have avoided breaking it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36173 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 21:48:58 +00:00
Bill Wendling
bb1ee05253 Add support for our first SSSE3 instruction "pmulhrsw". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35869 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-10 22:10:25 +00:00
Anton Korobeynikov
3b5ee73a13 Autodetect MMX & SSE stuff for AMD processors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35292 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-23 23:46:48 +00:00
Reid Spencer
5cbf985dcb For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33663 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 20:08:39 +00:00
Anton Korobeynikov
b10308e440 Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-28 13:31:35 +00:00
Evan Cheng
706535db86 Linux GOT indirect reference is only necessary in PIC mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33441 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-22 21:34:25 +00:00
Anton Korobeynikov
5032e5a613 * Fix one more bug in PIC codegen: extra load is needed for *all* 
non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33299 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-17 10:33:08 +00:00
Anton Korobeynikov
7f70559bc4 * PIC codegen for X86/Linux has been implemented 
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33136 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 19:20:47 +00:00
Anton Korobeynikov
317848f4a1 Really big cleanup. 
- New target type "mingw" was introduced
- Same things for both mingw & cygwin are marked as "cygming" (as in
gcc)
- .lcomm is supported here, so allow LLVM to use it
- Correctly use underscored versions of setjmp & _longjmp for both mingw
& cygwin


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32833 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-03 11:43:14 +00:00
Anton Korobeynikov
2b2bc68884 Refactored JIT codegen for mingw32. Now we're using standart relocation 
type for distinguish JIT & non-JIT instead of "dirty" hacks :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32745 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-22 22:29:05 +00:00
Anton Korobeynikov
48c8e3de2f Fixed 80 cols & style violation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32720 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-20 20:40:30 +00:00
Anton Korobeynikov
15fccf1d93 Fixed dllimported symbols support during JIT'ing. JIT on mingw32 
platform should be more or less workable. At least, sim is running fine
under lli :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32711 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-20 01:03:20 +00:00
Bill Wendling
f5da13367f What should be the last unnecessary <iostream>s in the library. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32333 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 22:21:48 +00:00
Anton Korobeynikov
7784ebc239 Factor out GVRequiresExtraLoad() from .h to .cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32048 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-30 22:42:55 +00:00
Evan Cheng
b4809b2b8f 16-byte stack alignment for X86-64 ELF. Patch by Dan Gohman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32004 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-29 02:00:40 +00:00
Chris Lattner
3b6f497873 Fix codegen for x86-64 on systems (like ppc or i386) that don't have 64-bit 
features autodetected.  This fixes PR1010 and Regression/CodeGen/X86/xmm-r64.ll
on non-x86-64 hosts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31879 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-20 18:16:05 +00:00
Evan Cheng
aacf99964f Use movl+xchgl instead of pushl+popl. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31572 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 20:35:37 +00:00
Evan Cheng
f896d1e247 Proper fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30993 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 00:24:49 +00:00
Evan Cheng
751c0e12db Proper fix for rdar://problem/4770604 Thanks to Stuart Hastings! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30985 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 21:00:37 +00:00
Evan Cheng
3cff9f8947 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30770 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 18:57:51 +00:00
Evan Cheng
a26eb5e1a7 Still need to support -mcpu=<> or cross compilation will fail. Doh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30764 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 09:17:41 +00:00
Evan Cheng
abc346ceda Do away with CPU feature list. Just use CPUID to detect MMX, SSE, SSE2, SSE3, and 64-bit support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30763 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 08:21:07 +00:00
Evan Cheng
88c1578011 It appears the inline asm in GetCpuIDAndInfo() may clobbers some registers if it isn't inlined (at < -O3). Force it to be inlined. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30762 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 07:50:56 +00:00
Evan Cheng
8e0055de8a Formating. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30722 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 18:33:00 +00:00
Evan Cheng
25ab690a43 Committing X86-64 support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30177 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-08 06:48:29 +00:00
Chris Lattner
cdb341dcfa Fix a cross-build issue. The asmsyntax shouldn't be affected by the build 
host, it should be affected by the target.  Allow the command line option to
override in either case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30164 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 22:29:41 +00:00
Jim Laskey
05a059d5d8 Make the x86 asm flavor part of the subtarget info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30146 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-07 12:23:47 +00:00
Evan Cheng
54edc84000 Later models likely to have Yonah like attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28843 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-16 21:58:49 +00:00
Evan Cheng
932ad51fea X86 / Cygwin asm / alignment fixes. 
Patch contributed by Anton Korobeynikov!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28480 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 21:59:08 +00:00
Evan Cheng
7ccced634a x86 / Darwin PIC support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26273 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-18 00:15:05 +00:00
Evan Cheng
18a8452f3d A bit more memset / memcpy optimization. 
Turns them into calls to memset / memcpy if 1) buffer(s) are not DWORD aligned,
2) size is not known to be greater or equal to some minimum value (currently 128).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26224 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-16 00:21:07 +00:00
Evan Cheng
ddf7532442 Duh 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26180 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:37:37 +00:00
Evan Cheng
968c178172 Remove -disable-x86-sse 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26179 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 20:30:14 +00:00
Evan Cheng
82eaf628b4 Enable SSE (for the right subtargets) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26169 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-14 08:07:58 +00:00
Jeff Cohen
c4013d6772 Flesh out AMD family/models. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25755 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 20:30:18 +00:00
Jeff Cohen
216d281d0a Correctly determine CPU vendor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25754 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 19:48:34 +00:00
Jeff Cohen
a349640b7f Use union instead of reinterpret_cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25751 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:47:32 +00:00
Jeff Cohen
7617717496 Fix recognition of Intel CPUs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25750 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:38:20 +00:00
Chris Lattner
c2fad16155 Is64Bit reflects the capability of the chip, not an aspect of the target os 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25749 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:23:48 +00:00
Jeff Cohen
41adb0d679 Improve X86 subtarget support for Windows and AMD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25747 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:09:06 +00:00
Chris Lattner
1e39a15b42 make this work on non-native hosts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25734 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 06:05:41 +00:00
Chris Lattner
104988a16a initialize all instance vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25711 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:37:09 +00:00
Evan Cheng
dbd38d7f64 Added a temporary option -enable-x86-sse to enable sse support. It is used by 
llc-beta.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25701 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 21:49:34 +00:00
Evan Cheng
b3a7e21b7e A better workaround 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25692 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 19:30:30 +00:00
Chris Lattner
9f96a32831 force sse/3dnow off until they work. This fixes all the x86 failures last night 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25690 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 18:30:50 +00:00
Evan Cheng
559806f575 x86 CPU detection and proper subtarget support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25679 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 08:10:46 +00:00
Evan Cheng
97c7fc351e Added preliminary x86 subtarget support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25645 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 09:53:06 +00:00
Chris Lattner
d460f57d65 Simplify the subtarget info, allow the asmwriter to do some target sensing 
based on TargetType.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24478 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-21 22:43:58 +00:00
Chris Lattner
e5600e5509 Make the X86 subtarget compute the basic target type: ELF, Cygwin, Darwin, 
or native Win32


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24476 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-21 22:31:58 +00:00
Jim Laskey
b1e1180ca0 1. Use SubtargetFeatures in llc/lli. 
2. Propagate feature "string" to all targets.

3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23192 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-01 21:38:21 +00:00
Nate Begeman
8c00f8cdc7 Add Subtarget support to PowerPC. Next up, using it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22644 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-04 07:12:09 +00:00
Jeff Cohen
00b16889ab Eliminate all remaining tabs and trailing spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-27 06:12:32 +00:00
Nate Begeman
0e219eb9b8 Clean up the TargetSubtarget class a bit, removing an unnecessary argument 
to the constructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22392 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 02:41:19 +00:00
Chris Lattner
b151acadc8 Minor changes to improve comments and fix the build on _WIN32 systems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22391 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 02:36:10 +00:00
Nate Begeman
fb5792f416 Implement Subtarget support 
Implement the X86 Subtarget.

This consolidates the checks for target triple, and setting options based
on target triple into one place.  This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.

This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin.  Next up is to convert over the asm printers
to use this new interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22389 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-07-12 01:41:54 +00:00