From 0c1d2c277a59f08fd3232b33d18644ea890190ea Mon Sep 17 00:00:00 2001 From: Xi Ruoyao Date: Mon, 29 Apr 2024 15:26:24 +0800 Subject: LoongArch: Use "$fcsr0" instead of "$r0" in _FPU_{GET,SET}CW Clang inline-asm parser does not allow using "$r0" in movfcsr2gr/movgr2fcsr, so everything using _FPU_{GET,SET}CW is now failing to build with Clang on LoongArch. As we now requires Binutils >= 2.41 which supports using "$fcsr0" here, use it instead of "$r0" to fix the issue. Link: https://github.com/loongson-community/discussions/issues/53#issuecomment-2081507390 Link: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=4142b2368353 Signed-off-by: Xi Ruoyao --- sysdeps/loongarch/fpu_control.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sysdeps/loongarch/fpu_control.h b/sysdeps/loongarch/fpu_control.h index 54add4e..3cdf241 100644 --- a/sysdeps/loongarch/fpu_control.h +++ b/sysdeps/loongarch/fpu_control.h @@ -91,8 +91,8 @@ typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__))); /* Macros for accessing the hardware control word. */ extern fpu_control_t __loongarch_fpu_getcw (void) __THROW; extern void __loongarch_fpu_setcw (fpu_control_t) __THROW; -#define _FPU_GETCW(cw) __asm__ volatile ("movfcsr2gr %0,$r0" : "=r"(cw)) -#define _FPU_SETCW(cw) __asm__ volatile ("movgr2fcsr $r0,%0" : : "r"(cw)) +#define _FPU_GETCW(cw) __asm__ volatile ("movfcsr2gr %0,$fcsr0" : "=r"(cw)) +#define _FPU_SETCW(cw) __asm__ volatile ("movgr2fcsr $fcsr0,%0" : : "r"(cw)) /* Default control word set at startup. */ extern fpu_control_t __fpu_control; -- cgit v1.1