diff mbox series

[v2,01/11] RISC-V: memmove() size optimized version: Use compressed register

Message ID 20250410112308.77247-2-marlene.fally@gmail.com
State New
Headers
Series newlib: RISC-V: Optimize memory and string functions for code size |

Commit Message

m fally April 10, 2025, 11:22 a.m. UTC 
  Replace register t2 with register a5, so that lb/sb instructions can be compressed.

Reviewed-by: Christian Herber <christian.herber@oss.nxp.com>
Signed-off-by: m fally <marlene.fally@gmail.com>
---
 newlib/libc/machine/riscv/memmove.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/newlib/libc/machine/riscv/memmove.S b/newlib/libc/machine/riscv/memmove.S
index 66d9cd494..0f7216a68 100644
--- a/newlib/libc/machine/riscv/memmove.S
+++ b/newlib/libc/machine/riscv/memmove.S
@@ -26,8 +26,8 @@  memmove:
   add a1, a1, a4
 
 1:
-  lb t2, 0(a1)
-  sb t2, 0(t1)
+  lb a5, 0(a1)
+  sb a5, 0(t1)
   add   a2, a2, -1
   add   t1, t1, a3
   add   a1, a1, a3