Hello All:
This patch replaces fmr instruction (6 cycles) with xxlor instruction ( 2
cycles)
Bootstrapped and regtested on powerpc64-linux-gnu.
copyright assignment form is still in the process of being sent.
Thanks & Regards
Ajit
rs6000: fmr gets used instead of faster xxlor [PR93571]
This patch replaces 6 cycles fmr instruction with xxlor
2 cycles.
2023-02-17 Ajit Kumar Agarwal <aagar...@linux.ibm.com>
gcc/ChangeLog:
* config/rs6000/rs6000.md (*movdf_hardfloat64): Replace fmr with xxlor
instruction.
---
gcc/config/rs6000/rs6000.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 4a7812fa592..dfd6c73ffcb 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -8436,7 +8436,7 @@
"@
stfd%U0%X0 %1,%0
lfd%U1%X1 %0,%1
- fmr %0,%1
+ xxlor %0,%1,%1
lxsd %0,%1
stxsd %1,%0
lxsdx %x0,%y1
--
2.31.1
