diff options
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/ChangeLog | 5 | ||||
| -rw-r--r-- | libgcc/config/i386/sfp-exceptions.c | 6 |
2 files changed, 5 insertions, 6 deletions
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. */ |