diff options
| -rw-r--r-- | libatomic/ChangeLog | 5 | ||||
| -rw-r--r-- | libatomic/config/x86/fenv.c | 6 | ||||
| -rw-r--r-- | libgcc/ChangeLog | 5 | ||||
| -rw-r--r-- | libgcc/config/i386/sfp-exceptions.c | 6 | ||||
| -rw-r--r-- | libgfortran/ChangeLog | 5 | ||||
| -rw-r--r-- | libgfortran/config/fpu-387.h | 6 |
6 files changed, 15 insertions, 18 deletions
diff --git a/libatomic/ChangeLog b/libatomic/ChangeLog index 624162d..33527a7 100644 --- a/libatomic/ChangeLog +++ b/libatomic/ChangeLog @@ -1,3 +1,8 @@ +2020-04-19 Uroš Bizjak <ubizjak@gmail.com> + + * config/x86/fenv.c (__atomic_feraiseexcept) [__SSE_MATH__]: + Remove unneeded assignments to volatile memory. + 2020-04-06 Maciej W. Rozycki <macro@wdc.com> * configure.ac: Add testsuite/libatomic-site-extra.exp to output diff --git a/libatomic/config/x86/fenv.c b/libatomic/config/x86/fenv.c index 7828162..d7b1bbe 100644 --- a/libatomic/config/x86/fenv.c +++ b/libatomic/config/x86/fenv.c @@ -57,9 +57,7 @@ __atomic_feraiseexcept (int excepts) { float f = 0.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); asm volatile ("%vdivss\t{%0, %d0|%d0, %0}" : "+x" (f)); - r = f; /* Needed to trigger exception. */ #else asm volatile ("fdiv\t{%y0, %0|%0, %y0}" : "+t" (f)); /* No need for fwait, exception is triggered by emitted fstp. */ @@ -77,9 +75,7 @@ __atomic_feraiseexcept (int excepts) { float f = 1.0f, g = 0.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); asm volatile ("%vdivss\t{%1, %d0|%d0, %1}" : "+x" (f) : "xm" (g)); - r = f; /* Needed to trigger exception. */ #else asm volatile ("fdivs\t%1" : "+t" (f) : "m" (g)); /* No need for fwait, exception is triggered by emitted fstp. */ @@ -105,9 +101,7 @@ __atomic_feraiseexcept (int excepts) { float f = 1.0f, g = 3.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); asm volatile ("%vdivss\t{%1, %d0|%d0, %1}" : "+x" (f) : "xm" (g)); - r = f; /* Needed to trigger exception. */ #else asm volatile ("fdivs\t%1" : "+t" (f) : "m" (g)); /* No need for fwait, exception is triggered by emitted fstp. */ diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 3426ff8..d66f76f 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,8 @@ +2020-04-19 Uroš Bizjak <ubizjak@gmail.com> + + * config/i386/sfp-exceptions.c (__sfp_handle_exceptions) [__SSE_MATH__]: + Remove unneeded assignments to volatile memory. + 2020-04-15 Jakub Jelinek <jakub@redhat.com> PR target/93053 diff --git a/libgcc/config/i386/sfp-exceptions.c b/libgcc/config/i386/sfp-exceptions.c index c994491..31a24ce 100644 --- a/libgcc/config/i386/sfp-exceptions.c +++ b/libgcc/config/i386/sfp-exceptions.c @@ -48,9 +48,7 @@ __sfp_handle_exceptions (int _fex) { float f = 0.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); asm volatile ("%vdivss\t{%0, %d0|%d0, %0}" : "+x" (f)); - r = f; /* Needed to trigger exception. */ #else asm volatile ("fdiv\t{%y0, %0|%0, %y0}" : "+t" (f)); /* No need for fwait, exception is triggered by emitted fstp. */ @@ -68,9 +66,7 @@ __sfp_handle_exceptions (int _fex) { float f = 1.0f, g = 0.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); asm volatile ("%vdivss\t{%1, %d0|%d0, %1}" : "+x" (f) : "xm" (g)); - r = f; /* Needed to trigger exception. */ #else asm volatile ("fdivs\t%1" : "+t" (f) : "m" (g)); /* No need for fwait, exception is triggered by emitted fstp. */ @@ -96,9 +92,7 @@ __sfp_handle_exceptions (int _fex) { float f = 1.0f, g = 3.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); asm volatile ("%vdivss\t{%1, %d0|%d0, %1}" : "+x" (f) : "xm" (g)); - r = f; /* Needed to trigger exception. */ #else asm volatile ("fdivs\t%1" : "+t" (f) : "m" (g)); /* No need for fwait, exception is triggered by emitted fstp. */ diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog index e33d349..2ca75f1 100644 --- a/libgfortran/ChangeLog +++ b/libgfortran/ChangeLog @@ -1,3 +1,8 @@ +2020-04-19 Uroš Bizjak <ubizjak@gmail.com> + + * config/fpu-387.h (local_feraiseexcept) [__SSE_MATH__]: + Remove unneeded assignments to volatile memory. + 2020-04-01 Fritz Reese <foreese@gcc.gnu.org> Steven G. Kargl <kargl@gcc.gnu.org> diff --git a/libgfortran/config/fpu-387.h b/libgfortran/config/fpu-387.h index 623e878..13be204 100644 --- a/libgfortran/config/fpu-387.h +++ b/libgfortran/config/fpu-387.h @@ -103,9 +103,7 @@ local_feraiseexcept (int excepts) { float f = 0.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); __asm__ __volatile__ ("%vdivss\t{%0, %d0|%d0, %0}" : "+x" (f)); - r = f; /* Needed to trigger exception. */ #else __asm__ __volatile__ ("fdiv\t{%y0, %0|%0, %y0}" : "+t" (f)); /* No need for fwait, exception is triggered by emitted fstp. */ @@ -123,9 +121,7 @@ local_feraiseexcept (int excepts) { float f = 1.0f, g = 0.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); __asm__ __volatile__ ("%vdivss\t{%1, %d0|%d0, %1}" : "+x" (f) : "xm" (g)); - r = f; /* Needed to trigger exception. */ #else __asm__ __volatile__ ("fdivs\t%1" : "+t" (f) : "m" (g)); /* No need for fwait, exception is triggered by emitted fstp. */ @@ -151,9 +147,7 @@ local_feraiseexcept (int excepts) { float f = 1.0f, g = 3.0f; #ifdef __SSE_MATH__ - volatile float r __attribute__ ((unused)); __asm__ __volatile__ ("%vdivss\t{%1, %d0|%d0, %1}" : "+x" (f) : "xm" (g)); - r = f; /* Needed to trigger exception. */ #else __asm__ __volatile__ ("fdivs\t%1" : "+t" (f) : "m" (g)); /* No need for fwait, exception is triggered by emitted fstp. */ |