Module: Mesa Branch: master Commit: 3f7a5ffac7e78bca47fa58849f5666fb334b3ab1 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3f7a5ffac7e78bca47fa58849f5666fb334b3ab1
Author: José Fonseca <[email protected]> Date: Fri May 18 01:03:13 2012 +0100 llvmpipe: Avoid adding floating point zero to flat inputs. Which could clobber integer inputs, if the addition is not optimized away (e.g., if optimizations are disabled for debugging purposes). --- src/gallium/drivers/llvmpipe/lp_bld_interp.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/gallium/drivers/llvmpipe/lp_bld_interp.c b/src/gallium/drivers/llvmpipe/lp_bld_interp.c index 0608ab0..0d51ccb 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_interp.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_interp.c @@ -239,7 +239,10 @@ coeffs_init(struct lp_build_interp_soa_context *bld, * Compute the attrib values on the upper-left corner of each quad. */ - a = LLVMBuildFAdd(builder, a, dadq2, ""); + if (interp != LP_INTERP_CONSTANT && + interp != LP_INTERP_FACING) { + a = LLVMBuildFAdd(builder, a, dadq2, ""); + } #if PERSPECTIVE_DIVIDE_PER_QUAD /* _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
