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author | Uros Bizjak <ubizjak@gmail.com> | 2017-04-14 14:30:57 +0200 |
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committer | Richard Henderson <rth@twiddle.net> | 2017-04-26 04:21:59 -0700 |
commit | 1e1f44de64d12a9539155665cd0aedee7909b00d (patch) | |
tree | 77c78e26ffa17bdaac989f2f1b6a62e40200a1f9 /sysdeps/alpha/fpu | |
parent | 9fe3c80c7c3dbce34dadc7f0693d211fdd9a0b03 (diff) | |
download | glibc-1e1f44de64d12a9539155665cd0aedee7909b00d.tar.gz glibc-1e1f44de64d12a9539155665cd0aedee7909b00d.tar.xz glibc-1e1f44de64d12a9539155665cd0aedee7909b00d.zip |
Add earlyclobber to sqrtt/sqrtf insns.
When using software completions, we have to prevent assembler to match input and output operands of sqrtt/sqrtf insn. Add earlyclobber to output operand to avoid unwanted operand matching. 2017-04-14 Uros Bizjak <ubizjak@gmail.com> * sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): Add earlyclobber to output operand of sqrt insn. (__ieee754_sqrtf): Ditto.
Diffstat (limited to 'sysdeps/alpha/fpu')
-rw-r--r-- | sysdeps/alpha/fpu/math_private.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sysdeps/alpha/fpu/math_private.h b/sysdeps/alpha/fpu/math_private.h index 9e06e25dc6..1e97c867c3 100644 --- a/sysdeps/alpha/fpu/math_private.h +++ b/sysdeps/alpha/fpu/math_private.h @@ -27,9 +27,9 @@ __ieee754_sqrt (double d) { double ret; # ifdef _IEEE_FP_INEXACT - asm ("sqrtt/suid %1,%0" : "=f"(ret) : "f"(d)); + asm ("sqrtt/suid %1,%0" : "=&f"(ret) : "f"(d)); # else - asm ("sqrtt/sud %1,%0" : "=f"(ret) : "f"(d)); + asm ("sqrtt/sud %1,%0" : "=&f"(ret) : "f"(d)); # endif return ret; } @@ -39,9 +39,9 @@ __ieee754_sqrtf (float d) { float ret; # ifdef _IEEE_FP_INEXACT - asm ("sqrts/suid %1,%0" : "=f"(ret) : "f"(d)); + asm ("sqrts/suid %1,%0" : "=&f"(ret) : "f"(d)); # else - asm ("sqrts/sud %1,%0" : "=f"(ret) : "f"(d)); + asm ("sqrts/sud %1,%0" : "=&f"(ret) : "f"(d)); # endif return ret; } |