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authorKeith Whitwell <[email protected]>2010-09-15 16:28:49 +0100
committerKeith Whitwell <[email protected]>2010-09-15 16:41:59 +0100
commit8e8a42ffc51cb478ce38e3901d35ce28bba59c19 (patch)
tree76bc5b84ade620603ffc703d99fefff5ccacb8c9
parentfd4c6bd1357fd9931f6c6bdbcfb01ebc2ba01f1b (diff)
llvmpipe: return zero from floor_pot(zero)
-rw-r--r--src/gallium/drivers/llvmpipe/lp_setup_tri.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index 53ffb95505b..5090f82ab5f 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -447,8 +447,10 @@ do_triangle_ccw(struct lp_setup_context *setup,
static INLINE uint32_t
floor_pot(uint32_t n)
{
- assert(n);
#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
+ if (n == 0)
+ return 0;
+
__asm__("bsr %1,%0"
: "=r" (n)
: "rm" (n));