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8305 Commits

Author SHA1 Message Date
Evan Cheng 051da5deaa - Switch from std::set to SmallPtrSet. 
- Add comments.

llvm-svn: 50259
 2008-04-25 08:22:20 +00:00
Evan Cheng df38b35a1e MMX argument passing fixes: 
On Darwin / Linux x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2].                                                                                                                                      
On Darwin / Linux x86-32, v1i64 values are passed in memory.                                                                                                                                                    
On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7].                                                                                                                                     
On Darwin x86-64, v1i64 values are passed in 64-bit GPRs.

llvm-svn: 50257
 2008-04-25 07:56:45 +00:00
Chris Lattner 741c7a3b49 Loosen up an assertion to allow intrinsics. I really have no 
idea what this code (findNonImmUse) does, so I'm only guessing 
that this is the right thing.  It would be really really nice
if this had comments and perhaps switched to SmallPtrSet
(hint hint) :)

This fixes rdar://5886601, a crash on gcc.target/i386/sse4_1-pblendw.c

llvm-svn: 50252
 2008-04-25 05:13:01 +00:00
Evan Cheng 9165e165dc Fix bug in x86 memcpy / memset lowering. If there are trailing bytes not handled by rep instructions, a new memcpy / memset is introduced for them. However, since source / destination addresses are already adjusted, their offsets should be zero. 
llvm-svn: 50239
 2008-04-25 00:26:43 +00:00
Dan Gohman c107d0020d Make these variables static. 
llvm-svn: 50196
 2008-04-23 23:15:23 +00:00
Anton Korobeynikov 1ae135c87b Drop dead includes 
llvm-svn: 50192
 2008-04-23 22:44:03 +00:00
Anton Korobeynikov 9dcc3e97a4 Adjust option names for C++ backend 
llvm-svn: 50190
 2008-04-23 22:37:03 +00:00
Anton Korobeynikov 78695035c4 First step of implementing PR1538: move llvm2cpp logic to new 'target' 
llvm-svn: 50189
 2008-04-23 22:29:24 +00:00
Dan Gohman d871fa5cb6 Initial CBE support for multiple return values. 
llvm-svn: 50187
 2008-04-23 21:49:29 +00:00
Anton Korobeynikov 0d6df367f1 Fix typo 
llvm-svn: 50169
 2008-04-23 18:24:25 +00:00
Anton Korobeynikov 965babda19 Only allow increase of max alignment value 
llvm-svn: 50168
 2008-04-23 18:23:50 +00:00
Anton Korobeynikov c1534dca56 Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register. 
llvm-svn: 50167
 2008-04-23 18:23:30 +00:00
Anton Korobeynikov 2659011b70 Add X86 Maximal Stack Alignment Calculator Pass before RA 
llvm-svn: 50166
 2008-04-23 18:23:05 +00:00
Anton Korobeynikov 156550ae79 Do proper book-keeping of offsets and prologue/epilogue code for stack realignment 
llvm-svn: 50163
 2008-04-23 18:21:27 +00:00
Anton Korobeynikov 89a0a017fb If stack realignment is used - incoming args will use EBP as base register and locals - ESP 
llvm-svn: 50162
 2008-04-23 18:21:02 +00:00
Anton Korobeynikov ba5129073c Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not 
llvm-svn: 50161
 2008-04-23 18:20:17 +00:00
Anton Korobeynikov c756b460d9 Cleanup 
llvm-svn: 50159
 2008-04-23 18:19:23 +00:00
Anton Korobeynikov a8aac3db3f Simplify 
llvm-svn: 50158
 2008-04-23 18:18:36 +00:00
Anton Korobeynikov cb195f511d Make stack alignment options global for all targets 
llvm-svn: 50157
 2008-04-23 18:18:10 +00:00
Anton Korobeynikov 9328fbc4c7 Provide option for enabling-disabling stack realignment 
llvm-svn: 50156
 2008-04-23 18:17:11 +00:00
Anton Korobeynikov ca150edda6 Disable stack realignment for functions with dynamic-sized alloca's 
llvm-svn: 50155
 2008-04-23 18:16:43 +00:00
Anton Korobeynikov a7495260ee Provide ABI-correct stack alignment 
llvm-svn: 50154
 2008-04-23 18:16:16 +00:00
Anton Korobeynikov 8843487e16 Provide convenient helpers for some operations 
llvm-svn: 50153
 2008-04-23 18:15:48 +00:00
Anton Korobeynikov 2ccafa47ac Whitespace cleanup 
llvm-svn: 50152
 2008-04-23 18:15:11 +00:00
Dan Gohman f166d2d0d6 Implement an x86-64 ABI detail of passing structs by hidden first 
argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.

Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.

llvm-svn: 50075
 2008-04-21 23:59:07 +00:00
Dan Gohman db08f5218e Fix the encoding of the MMX movd that moves from MMX to 64-bit GPR. 
llvm-svn: 50053
 2008-04-21 19:52:29 +00:00
Chris Lattner a89143f1e0 Add an ugly note. 
llvm-svn: 50029
 2008-04-21 04:46:30 +00:00
Nicolas Geoffray 984e7199cc Don't forget to update the current operand when getting the size of an instruction. 
llvm-svn: 50007
 2008-04-20 23:36:47 +00:00
Chris Lattner 470ab00c76 A better fix for my previous patch, MOVZQI2PQIrr just requires SSE2. 
llvm-svn: 49986
 2008-04-20 05:52:46 +00:00
Chris Lattner 3b18762f40 Switch to using Simplified ConstantFP::get API. 
llvm-svn: 49977
 2008-04-20 00:41:09 +00:00
Evan Cheng 5102bd9359 64-bit atomic operations. 
llvm-svn: 49949
 2008-04-19 02:30:38 +00:00
Evan Cheng 5e7ee0a002 Also LXCHG64 -> XCHG64rm. 
llvm-svn: 49948
 2008-04-19 02:05:42 +00:00
Evan Cheng 51096affb5 PPC32 atomic operations. 
llvm-svn: 49947
 2008-04-19 01:30:48 +00:00
Evan Cheng 7f4240a47c xchg which references a memory operand does not need to lock prefix. Atomicity is guaranteed. 
llvm-svn: 49946
 2008-04-19 01:20:30 +00:00
Dan Gohman ad4071a9e1 Fix the handling of va_copy on x86-64. As of llvm-gcc r49920 
llvm-gcc is now lowering va_copy on x86-64, so this completes
the fix for PR2230.

llvm-svn: 49922
 2008-04-18 20:55:41 +00:00
Evan Cheng 00bd8d904a - Fix atomic operation JIT encoding. 
- Remove unused instructions.

llvm-svn: 49921
 2008-04-18 20:55:36 +00:00
Evan Cheng 5879213597 Also support Intel asm syntax. 
llvm-svn: 49878
 2008-04-17 23:35:10 +00:00
Evan Cheng 4704baa555 Fix assembly code for atomic operations. 
llvm-svn: 49869
 2008-04-17 21:26:35 +00:00
Evan Cheng 147cb764b5 Don't forget about sub-register indices when rematting instructions. 
llvm-svn: 49830
 2008-04-16 23:44:44 +00:00
Dale Johannesen c1279f5e4b Unbreak build on x86-64. 
llvm-svn: 49822
 2008-04-16 22:24:33 +00:00
Nicolas Geoffray a7557dfe71 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function 
the stub will resolve.

llvm-svn: 49814
 2008-04-16 20:46:05 +00:00
Nicolas Geoffray ae84bbdbed Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented 
llvm-svn: 49809
 2008-04-16 20:10:13 +00:00
Evan Cheng a15cee1036 Initialize X863DNowLevel. 
llvm-svn: 49808
 2008-04-16 19:03:02 +00:00
Roman Levenstein a3ee1a38a3 Ongoing work on improving the instruction selection infrastructure: 
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.

llvm-svn: 49795
 2008-04-16 16:15:27 +00:00
Dan Gohman d43d3beeb0 Add support for the form of the SSE41 extractps instruction that 
puts its result in a 32-bit GPR.

llvm-svn: 49762
 2008-04-16 02:32:24 +00:00
Dan Gohman 8c99ccaf96 Recreate the size SDNode instead of reusing the old one in the x86 
memcpy lowering code; this ensures that the size node has the desired
result type. This fixes a regression from r49572 with @llvm.memcpy.i64
on x86-32.

llvm-svn: 49761
 2008-04-16 01:32:32 +00:00
Dan Gohman 3dd8ba6235 Remove X86_64SRet; it isn't used anymore. 
llvm-svn: 49759
 2008-04-16 00:24:30 +00:00
Dan Gohman 01a5d36d9d Add movd instructions to move from MMX registers 
to 64-bit GPR registers on x86-64.

llvm-svn: 49757
 2008-04-15 23:55:07 +00:00
Nicolas Geoffray 7000c8f1aa Change Divided flag to Split, as suggested by Evan 
llvm-svn: 49715
 2008-04-15 08:08:50 +00:00
Dan Gohman 4fff979a43 Remove unnecessary <sstream> includes. 
llvm-svn: 49681
 2008-04-14 20:40:47 +00:00