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112 Commits

Author SHA1 Message Date
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