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re PR bootstrap/49104 (bootstrap failure on AMD K6-2 with illegal instruction (cmove) in stage2) 

PR target/49104
	* config/i386/cpuid.h (bit_MMXEXT): New define.

libcpp/ChangeLog:

2011-05-22  Uros Bizjak  <ubizjak@gmail.com>

	PR target/49104
	* lex.c (init_vectorized_lexer): Do not set "minimum" when __3dNOW_A__
	is defined.  Check bit_MMXEXT and bit_CMOV to use search_line_mmx.

From-SVN: r174032
This commit is contained in:
Uros Bizjak 2011-05-22 20:53:32 +02:00
parent 7a1db261de
commit ef230b3836
4 changed files with 17 additions and 7 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-05-22 Uros Bizjak <ubizjak@gmail.com>
PR target/49104
* config/i386/cpuid.h (bit_MMXEXT): New define.
2011-05-22 Nick Clifton <nickc@redhat.com> 2011-05-22 Nick Clifton <nickc@redhat.com>
* config/stormy16/stormy16.c (xstormy16_init_builtins): prevent * config/stormy16/stormy16.c (xstormy16_init_builtins): prevent
@ -7,8 +12,7 @@
2011-05-22 Ira Rosen <ira.rosen@linaro.org> 2011-05-22 Ira Rosen <ira.rosen@linaro.org>
PR tree-optimization/49087 PR tree-optimization/49087
* tree-vect-loop.c (vect_is_slp_reduction): Fail if * tree-vect-loop.c (vect_is_slp_reduction): Fail if LHS has no uses.
LHS has no uses.
2011-05-21 Jason Merrill <jason@redhat.com> 2011-05-21 Jason Merrill <jason@redhat.com>
@ -45,8 +49,7 @@
* opt-read.awk: New. Split out of optc-gen.awk and opth-gen.awk. * opt-read.awk: New. Split out of optc-gen.awk and opth-gen.awk.
* optc-gen.awk: Move common code to opt-read.awk. * optc-gen.awk: Move common code to opt-read.awk.
* opth-gen.awk: Likewise. * opth-gen.awk: Likewise.
* Makefile.in (options.c, s-options-h): Update to use * Makefile.in (options.c, s-options-h): Update to use opt-read.awk.
opt-read.awk.
2011-05-20 Nathan Froyd <froydnj@codesourcery.com> 2011-05-20 Nathan Froyd <froydnj@codesourcery.com>

1
gcc/config/i386/cpuid.h
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@ -57,6 +57,7 @@
#define bit_TBM (1 << 21) #define bit_TBM (1 << 21)
/* %edx */ /* %edx */
#define bit_MMXEXT (1 << 22)
#define bit_LM (1 << 29) #define bit_LM (1 << 29)
#define bit_3DNOWP (1 << 30) #define bit_3DNOWP (1 << 30)
#define bit_3DNOW (1 << 31) #define bit_3DNOW (1 << 31)

6
libcpp/ChangeLog
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@ -1,3 +1,9 @@
2011-05-22 Uros Bizjak <ubizjak@gmail.com>
PR target/49104
* lex.c (init_vectorized_lexer): Do not set "minimum" when __3dNOW_A__
is defined. Check bit_MMXEXT and bit_CMOV to use search_line_mmx.
2011-04-25 Jan Kratochvil <jan.kratochvil@redhat.com> 2011-04-25 Jan Kratochvil <jan.kratochvil@redhat.com>
* system.h (ENUM_BITFIELD): Remove. * system.h (ENUM_BITFIELD): Remove.

6
libcpp/lex.c
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@ -294,7 +294,7 @@ static const char repl_chars[4][16] __attribute__((aligned(16))) = {
/* A version of the fast scanner using MMX vectorized byte compare insns. /* A version of the fast scanner using MMX vectorized byte compare insns.
This uses the PMOVMSKB instruction which was introduced with "MMX2", This uses the PMOVMSKB instruction which was introduced with "MMX2",
which was packaged into SSE1; it is also present in the AMD 3dNOW-A which was packaged into SSE1; it is also present in the AMD MMX
extension. Mark the function as using "sse" so that we emit a real extension. Mark the function as using "sse" so that we emit a real
"emms" instruction, rather than the 3dNOW "femms" instruction. */ "emms" instruction, rather than the 3dNOW "femms" instruction. */
@ -488,7 +488,7 @@ init_vectorized_lexer (void)
minimum = 3; minimum = 3;
#elif defined(__SSE2__) #elif defined(__SSE2__)
minimum = 2; minimum = 2;
#elif defined(__SSE__) || defined(__3dNOW_A__) #elif defined(__SSE__)
minimum = 1; minimum = 1;
#endif #endif
@ -505,7 +505,7 @@ init_vectorized_lexer (void)
} }
else if (__get_cpuid (0x80000001, &dummy, &dummy, &dummy, &edx)) else if (__get_cpuid (0x80000001, &dummy, &dummy, &dummy, &edx))
{ {
if (minimum == 1 || edx & bit_3DNOWP) if (minimum == 1 || (edx & (bit_MMXEXT | bit_CMOV)))
impl = search_line_mmx; impl = search_line_mmx;
} }