From 7f703cf758c4f185dd62f2a4f463002bb514af16 Mon Sep 17 00:00:00 2001 From: Xi Ruoyao Date: Sun, 27 Aug 2023 00:36:51 +0800 Subject: [PATCH 13/29] LoongArch: Micro-optimize LD_PCREL We are requiring Binutils >= 2.41, so explicit relocation syntax is always supported by the assembler. Use it to reduce one instruction. Signed-off-by: Xi Ruoyao Signed-off-by: Peng Fan Signed-off-by: ticat_fp --- sysdeps/unix/sysv/linux/loongarch/pointer_guard.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h b/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h index b25e353b..d6c78687 100644 --- a/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h +++ b/sysdeps/unix/sysv/linux/loongarch/pointer_guard.h @@ -19,17 +19,15 @@ #ifndef POINTER_GUARD_H #define POINTER_GUARD_H -/* Load a got-relative EXPR into G, using T. - Note G and T are register names. */ +/* Load a got-relative EXPR into register G. */ #define LD_GLOBAL(G, EXPR) \ la.global G, EXPR; \ REG_L G, G, 0; -/* Load a pc-relative EXPR into G, using T. - Note G and T are register names. */ +/* Load a pc-relative EXPR into register G. */ #define LD_PCREL(G, EXPR) \ - la.pcrel G, EXPR; \ - REG_L G, G, 0; + pcalau12i G, %pc_hi20(EXPR); \ + REG_L G, G, %pc_lo12(EXPR); #if (IS_IN (rtld) \ || (!defined SHARED && (IS_IN (libc) \ -- 2.33.0