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e37f7ab590
llvm-mirror/test/MC/X86
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David Sehr e37f7ab590 The current X86 NOP padding uses one long NOP followed by the remainder in 
one-byte NOPs.  If the processor actually executes those NOPs, as it sometimes
does with aligned bundling, this can have a performance impact.  From my
micro-benchmarks run on my one machine, a 15-byte NOP followed by twelve
one-byte NOPs is about 20% worse than a 15 followed by a 12.  This patch
changes NOP emission to emit as many 15-byte (the maximum) as possible followed
by at most one shorter NOP.

llvm-svn: 176464
2013-03-05 00:02:23 +00:00
..
AlignedBundling The current X86 NOP padding uses one long NOP followed by the remainder in 2013-03-05 00:02:23 +00:00
3DNow.s
2011-09-06-NoNewline.s
address-size.s Fix generation of the address size override prefix. Add assertions for 2012-03-21 05:48:07 +00:00
gnux32-dwarf-gen.s Now that llvm-dwarfdump supports flags to specify which DWARF section to dump, 2013-01-25 21:44:53 +00:00
intel-syntax-2.s Add newline. 2012-09-10 23:09:27 +00:00
intel-syntax-encoding.s Add retw and lretw instructions. Also, fix Intel syntax parsing for all 2012-04-11 01:10:53 +00:00
intel-syntax-hex.s 'Hexadecimal' has two 'a's and only one 'i'. 2013-02-25 18:11:18 +00:00
intel-syntax.s [ms-inline asm] Extend support for parsing Intel bracketed memory operands that 2013-01-14 22:31:35 +00:00
lit.local.cfg Make this Lit config file a bit slimmer 2012-12-13 02:03:46 +00:00
padlock.s
shuffle-comments.s Merge SSE and AVX shuffle instructions in the comment printer. 2013-01-29 07:54:31 +00:00
x86_64-avx-clmul-encoding.s
x86_64-avx-encoding.s Fix suffix handling for parsing and printing of cvtsi2ss, cvtsi2sd, cvtss2si, cvttss2si, cvtsd2si, and cvttsd2si to match gas behavior. 2013-01-06 20:39:29 +00:00
x86_64-bmi-encoding.s
x86_64-encoding.s
x86_64-fma3-encoding.s
x86_64-fma4-encoding.s X86: Make sure we account for the FMA4 register immediate value, otherwise rip-rel relocations will be off by one byte. 2013-01-22 18:05:59 +00:00
x86_64-imm-widths.s
x86_64-rtm-encoding.s Add support of RTM from TSX extension 2012-11-08 07:28:54 +00:00
x86_64-sse4a.s Add intrinsics, code gen, assembler and disassembler support for the SSE4a extrq and insertq instructions. 2012-05-29 19:05:25 +00:00
x86_64-xop-encoding.s XOP instructions and encoding tests. 2011-12-12 19:37:49 +00:00
x86_directives.s
x86_errors.s X86: Better diagnostics for 32-bit vs. 64-bit mode mismatches. 2012-11-14 18:04:47 +00:00
x86_nop.s X86: Depending on the local semantics of .align this test can also emit a nopl instead of nopw. 2012-10-13 17:38:00 +00:00
x86_operands.s
x86-32-avx.s Fix suffix handling for parsing and printing of cvtsi2ss, cvtsi2sd, cvtss2si, cvttss2si, cvtsd2si, and cvttsd2si to match gas behavior. 2013-01-06 20:39:29 +00:00
x86-32-coverage.s Fix suffix handling for parsing and printing of cvtsi2ss, cvtsi2sd, cvtss2si, cvttss2si, cvtsd2si, and cvttsd2si to match gas behavior. 2013-01-06 20:39:29 +00:00
x86-32-fma3.s
x86-32-ms-inline-asm.s [ms-inline asm] Add support for the pushad/popad mnemonics. 2013-02-25 19:06:27 +00:00
x86-32.s Add retw and lretw instructions. Also, fix Intel syntax parsing for all 2012-04-11 01:10:53 +00:00
x86-64.s Fix suffix handling for parsing and printing of cvtsi2ss, cvtsi2sd, cvtss2si, cvttss2si, cvtsd2si, and cvttsd2si to match gas behavior. 2013-01-06 20:39:29 +00:00