diff options
| author | Samuel Pitoiset <[email protected]> | 2019-04-10 17:16:50 +0200 |
|---|---|---|
| committer | Samuel Pitoiset <[email protected]> | 2019-04-12 17:30:55 +0200 |
| commit | 590a4c898191ba6af3b31caa8688536a5e19d2cf (patch) | |
| tree | 70fa99576f156ce496475fcbb5e81dfd277745af /src/amd | |
| parent | 4cb13e946284a569a242af0213f01e84aea4a4af (diff) | |
ac: add ac_build_ddxy_interp() helper
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/amd')
| -rw-r--r-- | src/amd/common/ac_llvm_build.c | 20 | ||||
| -rw-r--r-- | src/amd/common/ac_llvm_build.h | 3 | ||||
| -rw-r--r-- | src/amd/common/ac_nir_to_llvm.c | 23 |
3 files changed, 24 insertions, 22 deletions
diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c index 6a1ba5de0e0..d305af280d5 100644 --- a/src/amd/common/ac_llvm_build.c +++ b/src/amd/common/ac_llvm_build.c @@ -4037,3 +4037,23 @@ ac_build_frexp_mant(struct ac_llvm_context *ctx, LLVMValueRef src0, return ac_build_intrinsic(ctx, intr, type, params, 1, AC_FUNC_ATTR_READNONE); } + +/* + * this takes an I,J coordinate pair, + * and works out the X and Y derivatives. + * it returns DDX(I), DDX(J), DDY(I), DDY(J). + */ +LLVMValueRef +ac_build_ddxy_interp(struct ac_llvm_context *ctx, LLVMValueRef interp_ij) +{ + LLVMValueRef result[4], a; + unsigned i; + + for (i = 0; i < 2; i++) { + a = LLVMBuildExtractElement(ctx->builder, interp_ij, + LLVMConstInt(ctx->i32, i, false), ""); + result[i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 1, a); + result[2+i] = ac_build_ddxy(ctx, AC_TID_MASK_TOP_LEFT, 2, a); + } + return ac_build_gather_values(ctx, result, 4); +} diff --git a/src/amd/common/ac_llvm_build.h b/src/amd/common/ac_llvm_build.h index 61689f6a07e..64b6894538e 100644 --- a/src/amd/common/ac_llvm_build.h +++ b/src/amd/common/ac_llvm_build.h @@ -686,6 +686,9 @@ LLVMValueRef ac_build_frexp_mant(struct ac_llvm_context *ctx, LLVMValueRef src0, unsigned bitsize); +LLVMValueRef +ac_build_ddxy_interp(struct ac_llvm_context *ctx, LLVMValueRef interp_ij); + #ifdef __cplusplus } #endif diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index d983ac77ebd..1401998c666 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -540,27 +540,6 @@ static LLVMValueRef emit_ddxy(struct ac_nir_context *ctx, return result; } -/* - * this takes an I,J coordinate pair, - * and works out the X and Y derivatives. - * it returns DDX(I), DDX(J), DDY(I), DDY(J). - */ -static LLVMValueRef emit_ddxy_interp( - struct ac_nir_context *ctx, - LLVMValueRef interp_ij) -{ - LLVMValueRef result[4], a; - unsigned i; - - for (i = 0; i < 2; i++) { - a = LLVMBuildExtractElement(ctx->ac.builder, interp_ij, - LLVMConstInt(ctx->ac.i32, i, false), ""); - result[i] = emit_ddxy(ctx, nir_op_fddx, a); - result[2+i] = emit_ddxy(ctx, nir_op_fddy, a); - } - return ac_build_gather_values(&ctx->ac, result, 4); -} - static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr) { LLVMValueRef src[4], result = NULL; @@ -3107,7 +3086,7 @@ static LLVMValueRef visit_interp(struct ac_nir_context *ctx, if (location == INTERP_CENTER) { LLVMValueRef ij_out[2]; - LLVMValueRef ddxy_out = emit_ddxy_interp(ctx, interp_param); + LLVMValueRef ddxy_out = ac_build_ddxy_interp(&ctx->ac, interp_param); /* * take the I then J parameters, and the DDX/Y for it, and |