diff options
| author | Zack Rusin <[email protected]> | 2013-06-27 15:23:21 -0400 |
|---|---|---|
| committer | Zack Rusin <[email protected]> | 2013-06-28 04:24:24 -0400 |
| commit | 34546d61c1112aad888c3b8f07604bffb3f2e7b9 (patch) | |
| tree | 06d6b1cb9db3739c30fd37ab560ef998f68124dc /src/gallium/auxiliary/draw | |
| parent | 88de009cc1ab838cd87416dcbbaa4f5b30173c71 (diff) | |
draw/gallivm: export overflow arithmetic to its own file
We'll be reusing this code so lets put it in a common file
and use it in the draw module.
Signed-off-by: Zack Rusin <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/draw')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_llvm.c | 55 |
1 files changed, 11 insertions, 44 deletions
diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c index 33cccfe99aa..97b463f4ff8 100644 --- a/src/gallium/auxiliary/draw/draw_llvm.c +++ b/src/gallium/auxiliary/draw/draw_llvm.c @@ -32,6 +32,7 @@ #include "draw_gs.h" #include "gallivm/lp_bld_arit.h" +#include "gallivm/lp_bld_arit_overflow.h" #include "gallivm/lp_bld_logic.h" #include "gallivm/lp_bld_const.h" #include "gallivm/lp_bld_swizzle.h" @@ -699,13 +700,7 @@ generate_fetch(struct gallivm_state *gallivm, LLVMValueRef temp_ptr = lp_build_alloca(gallivm, lp_build_vec_type(gallivm, lp_float32_vec4_type()), ""); - LLVMValueRef ofbit, oresult; - LLVMTypeRef oelems[2] = { - LLVMInt32TypeInContext(gallivm->context), - LLVMInt1TypeInContext(gallivm->context) - }; - LLVMTypeRef otype = LLVMStructTypeInContext(gallivm->context, - oelems, 2, FALSE); + LLVMValueRef ofbit = NULL; struct lp_build_if_state if_ctx; if (velem->instance_divisor) { @@ -715,44 +710,16 @@ generate_fetch(struct gallivm_state *gallivm, "instance_divisor"); } - oresult = lp_build_intrinsic_binary(builder, - "llvm.umul.with.overflow.i32", - otype, vb_stride, index); - ofbit = LLVMBuildExtractValue(builder, oresult, 1, ""); - stride = LLVMBuildExtractValue(builder, oresult, 0, ""); - - oresult = lp_build_intrinsic_binary(builder, - "llvm.uadd.with.overflow.i32", - otype, stride, vb_buffer_offset); - ofbit = LLVMBuildOr( - builder, ofbit, - LLVMBuildExtractValue(builder, oresult, 1, ""), - ""); - stride = LLVMBuildExtractValue(builder, oresult, 0, ""); - - oresult = lp_build_intrinsic_binary( - builder, - "llvm.uadd.with.overflow.i32", - otype, stride, - lp_build_const_int32(gallivm, velem->src_offset)); - ofbit = LLVMBuildOr( - builder, ofbit, - LLVMBuildExtractValue(builder, oresult, 1, ""), - ""); - stride = LLVMBuildExtractValue(builder, oresult, 0, ""); - - - oresult = lp_build_intrinsic_binary( - builder, - "llvm.uadd.with.overflow.i32", - otype, stride, + stride = lp_build_umul_overflow(gallivm, vb_stride, index, &ofbit); + stride = lp_build_uadd_overflow(gallivm, stride, vb_buffer_offset, &ofbit); + stride = lp_build_uadd_overflow( + gallivm, stride, + lp_build_const_int32(gallivm, velem->src_offset), &ofbit); + needed_buffer_size = lp_build_uadd_overflow( + gallivm, stride, lp_build_const_int32(gallivm, - util_format_get_blocksize(velem->src_format))); - ofbit = LLVMBuildOr( - builder, ofbit, - LLVMBuildExtractValue(builder, oresult, 1, ""), - ""); - needed_buffer_size = LLVMBuildExtractValue(builder, oresult, 0, ""); + util_format_get_blocksize(velem->src_format)), + &ofbit); buffer_overflowed = LLVMBuildICmp(builder, LLVMIntUGT, needed_buffer_size, buffer_size, |