r300/compiler: Enable presubtract sources

[mesa.git] / src / gallium / drivers / r300 / r300_fs.c

diff --git a/src/gallium/drivers/r300/r300_fs.c b/src/gallium/drivers/r300/r300_fs.c
index b9f4d77dea7e5207244390f90a4227660ce8d81e..b8dab88ef09f0f5b50a0e75a4c7f076eaa81bc15 100644 (file)
--- a/src/gallium/drivers/r300/r300_fs.c
+++ b/src/gallium/drivers/r300/r300_fs.c
@@ -387,6 +387,7 @@ static void r300_translate_fragment_shader(
     compiler.Base.is_r500 = r300->screen->caps.is_r500;
     compiler.Base.disable_optimizations = DBG_ON(r300, DBG_NO_OPT);
     compiler.Base.has_half_swizzles = TRUE;
+    compiler.Base.has_presub = TRUE;
     compiler.Base.max_temp_regs = compiler.Base.is_r500 ? 128 : 32;
     compiler.Base.max_constants = compiler.Base.is_r500 ? 256 : 32;
     compiler.Base.max_alu_insts = compiler.Base.is_r500 ? 512 : 64;