From: Grazvydas Ignotas <notasas@gmail.com>
Date: Wed, 25 Jul 2018 17:27:48 +0000 (+0300)
Subject: llvmpipe: add cc clobber to inline asm
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2edf47edf08c63eb2b8f809a5be387d00da193e5;p=mesa.git

llvmpipe: add cc clobber to inline asm

The bsr instruction modifies flags, so that needs to be indicated to the
compiler. No effect on generated code, but still needed for correctness.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
---

diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index cec6198ec63..1852ec05d56 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -734,7 +734,8 @@ floor_pot(uint32_t n)
 
    __asm__("bsr %1,%0"
           : "=r" (n)
-          : "rm" (n));
+          : "rm" (n)
+          : "cc");
    return 1 << n;
 #else
    n |= (n >>  1);