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113 Commits

Author SHA1 Message Date
Mon P Wang
0258a27c5a Added another darwin subtarget 
llvm-svn: 65662
 2009-02-28 00:25:30 +00:00
Dan Gohman
7d19e6cd6d 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.

llvm-svn: 63642
 2009-02-03 18:53:21 +00:00
Dan Gohman
2170150035 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.

llvm-svn: 63575
 2009-02-03 00:04:43 +00:00
Torok Edwin
2bc41a36ba Only force SSE level if it is not correct. 
Add an assert to check HasX86_64 status.

llvm-svn: 63552
 2009-02-02 21:57:34 +00:00
Torok Edwin
c1017185a5 remove #if 0 code on Bill's request. 
llvm-svn: 63542
 2009-02-02 20:23:02 +00:00
Torok Edwin
b4c9a6097f 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

llvm-svn: 63495
 2009-02-01 18:15:56 +00:00
Torok Edwin
6f715ebe85 should have removed the + when manually applying a patch! 
llvm-svn: 62973
 2009-01-25 20:29:34 +00:00
Torok Edwin
3f54410405 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.

llvm-svn: 62972
 2009-01-25 20:21:24 +00:00
Torok Edwin
49b1d3e3cc If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. 
llvm-svn: 62967
 2009-01-25 17:58:56 +00:00
Rafael Espindola
0aba6c9435 Add the private linkage. 
llvm-svn: 62279
 2009-01-15 20:18:42 +00:00
Evan Cheng
d2ffa1f122 Atom and Core i7 do not have same model number after all. 
llvm-svn: 61686
 2009-01-05 08:45:01 +00:00
Evan Cheng
540a7a5e9b Add Intel processors core i7 and atom. 
llvm-svn: 61603
 2009-01-03 04:24:44 +00:00
Evan Cheng
c477e19c19 Fix PR3210: Detect more Intel processors. Patch by Torok Edwin. 
llvm-svn: 61602
 2009-01-03 04:04:46 +00:00
Evan Cheng
c52f942d67 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. 
llvm-svn: 61557
 2009-01-02 05:35:45 +00:00
Evan Cheng
f460ec040c Fix x86 CPU id detection to identify Penryn (and future processors). 
llvm-svn: 61556
 2009-01-02 05:29:20 +00:00
Dan Gohman
c3e24d559b Add initial support for back-scheduling address computations, 
especially in the case of addresses computed from loop induction
variables.

llvm-svn: 61075
 2008-12-16 03:35:01 +00:00
Evan Cheng
3bb2ad8a0a Re-apply 60689 now my head is screwed on right. 
llvm-svn: 60711
 2008-12-08 19:29:03 +00:00
Dan Gohman
5bca97fc4f Revert 60689. It caused many regressions on Darwin targets. 
llvm-svn: 60705
 2008-12-08 17:38:02 +00:00
Evan Cheng
d668dd83c0 Perform cheap checks first. 
llvm-svn: 60689
 2008-12-08 06:52:43 +00:00
Dale Johannesen
f5a072c388 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.)

llvm-svn: 60608
 2008-12-05 21:47:27 +00:00
Evan Cheng
1b795803dd 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. 
llvm-svn: 60571
 2008-12-05 01:06:39 +00:00
Bill Wendling
a0466523bd 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....

llvm-svn: 60527
 2008-12-04 04:07:00 +00:00
Evan Cheng
d4b7459179 Visibility hidden GVs do not require extra load of symbol address from the GOT or non-lazy-ptr. 
llvm-svn: 60519
 2008-12-04 01:56:50 +00:00
Duncan Sands
7fd4ea5847 Fix build with gcc-4.4: it doesn't like PICStyle 
being both a namespace and a variable name.

llvm-svn: 60208
 2008-11-28 09:29:37 +00:00
Dan Gohman
9543edc4ef 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.

llvm-svn: 57521
 2008-10-14 20:25:08 +00:00
Bill Wendling
618d422cdd Just don't transform this memset into "bzero" if no-builtin is specified. 
llvm-svn: 56888
 2008-09-30 22:05:33 +00:00
Bill Wendling
9ad453e943 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.

llvm-svn: 56885
 2008-09-30 21:22:07 +00:00
Evan Cheng
face16f9d8 x86-64 PIC JIT fixes: do not generate the extra load for external GV's. 
llvm-svn: 53661
 2008-07-16 01:34:02 +00:00
Anton Korobeynikov
d31e7ad0cf Revert accidentially added stuff 
llvm-svn: 53321
 2008-07-09 13:29:08 +00:00
Anton Korobeynikov
f16db15839 Switch to new section name handling facility 
llvm-svn: 53316
 2008-07-09 13:27:16 +00:00
Evan Cheng
3e6a03a4b6 Back out 53091 for now. 
llvm-svn: 53109
 2008-07-03 18:11:29 +00:00
Anton Korobeynikov
f3fc979d9c llvm-gcc sometimes marks external declarations hidden, because intializers are 
processed separately. Honour such situation and emit PIC relocations properly
in such case.

llvm-svn: 53091
 2008-07-03 07:43:14 +00:00
Rafael Espindola
feec40a71f Don't use the GOT for symbols that are not externally visible. 
llvm-svn: 51865
 2008-06-02 07:52:43 +00:00
Dale Johannesen
768b6f281e 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.

llvm-svn: 51118
 2008-05-14 20:12:51 +00:00
Dan Gohman
bab18cae46 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.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Mon P Wang
84a269e023 Added addition atomic instrinsics and, or, xor, min, and max. 
llvm-svn: 50663
 2008-05-05 19:05:59 +00:00
Dan Gohman
4a674dc536 Fix IsLinux being uninitialized on non-Linux targets. 
llvm-svn: 50660
 2008-05-05 18:43:07 +00:00
Dan Gohman
8ee7bf053e Use a dedicated IsLinux flag instead of an ELFLinux TargetType. 
llvm-svn: 50649
 2008-05-05 16:11:31 +00:00
Dan Gohman
c860d9c77c 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. 

llvm-svn: 50634
 2008-05-05 00:28:39 +00:00
Anton Korobeynikov
73935826d4 Make stack alignment options global for all targets 
llvm-svn: 50157
 2008-04-23 18:18:10 +00:00
Anton Korobeynikov
11851230a9 Provide ABI-correct stack alignment 
llvm-svn: 50154
 2008-04-23 18:16:16 +00:00
Evan Cheng
341bed7210 Initialize X863DNowLevel. 
llvm-svn: 49808
 2008-04-16 19:03:02 +00:00
Anton Korobeynikov
ea8dbf596a Provide option for stack alignment override 
llvm-svn: 49593
 2008-04-12 22:12:22 +00:00
Dan Gohman
168b2b1300 Speculatively micro-optimize memory-zeroing calls on Darwin 10. 
llvm-svn: 49048
 2008-04-01 20:38:36 +00:00
Anton Korobeynikov
95f522419c Honour built-in defines on win64 targets for automatically subtarget recognize. 
Force stack alignment to 16 bytes on win targets.

llvm-svn: 48695
 2008-03-22 21:18:22 +00:00
Anton Korobeynikov
befd472d5e Recognize "windows" in target triple, not only "win32" 
llvm-svn: 48694
 2008-03-22 21:12:53 +00:00
Anton Korobeynikov
4f6e612973 Remove bunch of gcc 4.3-related warnings from Target 
llvm-svn: 47369
 2008-02-20 11:22:39 +00:00
Dale Johannesen
de53aaec39 Remove warning about 64-bit code on processor 
that doesn't support it.  Per Chris.

llvm-svn: 47162
 2008-02-15 18:09:51 +00:00
Evan Cheng
a377b2bbd1 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

llvm-svn: 46850
 2008-02-07 08:53:49 +00:00
Nate Begeman
ead8dfeef2 SSE 4.1 Intrinsics and detection 
llvm-svn: 46681
 2008-02-03 07:18:54 +00:00