diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_state_fs.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c index 15b175a2c4..7ed727dbbc 100644 --- a/src/gallium/drivers/llvmpipe/lp_state_fs.c +++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c @@ -210,8 +210,6 @@ generate_tri_edge_mask(LLVMBuilderRef builder, LLVMValueRef m0_vec, m1_vec, m2_vec; LLVMValueRef m; - LLVMValueRef zeros; - assert(i < 4); /* int32 vector type */ @@ -224,18 +222,27 @@ generate_tri_edge_mask(LLVMBuilderRef builder, i32vec4_type = lp_build_int32_vec4_type(); - /* int32_vec4 zero = {0,0,0,0} */ - zeros = LLVMConstNull(i32vec4_type); - + /* c0_vec = {c0, c0, c0, c0} + * Note that we emit this code four times but LLVM optimizes away + * three instances of it. + */ c0_vec = lp_build_broadcast(builder, i32vec4_type, c0); c1_vec = lp_build_broadcast(builder, i32vec4_type, c1); c2_vec = lp_build_broadcast(builder, i32vec4_type, c2); + lp_build_name(c0_vec, "edgeconst0vec"); + lp_build_name(c1_vec, "edgeconst1vec"); + lp_build_name(c2_vec, "edgeconst2vec"); + index = LLVMConstInt(LLVMInt32Type(), i, 0); step0_vec = LLVMBuildLoad(builder, LLVMBuildGEP(builder, step0_ptr, &index, 1, ""), ""); step1_vec = LLVMBuildLoad(builder, LLVMBuildGEP(builder, step1_ptr, &index, 1, ""), ""); step2_vec = LLVMBuildLoad(builder, LLVMBuildGEP(builder, step2_ptr, &index, 1, ""), ""); + lp_build_name(step0_vec, "step0vec"); + lp_build_name(step1_vec, "step1vec"); + lp_build_name(step2_vec, "step2vec"); + m0_vec = lp_build_compare(builder, i32_type, PIPE_FUNC_GREATER, step0_vec, c0_vec); m1_vec = lp_build_compare(builder, i32_type, PIPE_FUNC_GREATER, step1_vec, c1_vec); m2_vec = lp_build_compare(builder, i32_type, PIPE_FUNC_GREATER, step2_vec, c2_vec); @@ -243,7 +250,13 @@ generate_tri_edge_mask(LLVMBuilderRef builder, m = LLVMBuildAnd(builder, m0_vec, m1_vec, ""); m = LLVMBuildAnd(builder, m, m2_vec, ""); + lp_build_name(m, "inoutmaskvec"); + *mask = m; + + /* + * if mask = {0,0,0,0} skip quad + */ } @@ -309,6 +322,7 @@ generate_fs(struct llvmpipe_context *lp, generate_tri_edge_mask(builder, i, pmask, c0, c1, c2, step0_ptr, step1_ptr, step2_ptr); + /* 'mask' will control execution based on quad's pixel alive/killed state */ lp_build_mask_begin(&mask, flow, type, *pmask); |