diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-10-09 08:52:31 -0600 |
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committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-10-09 19:51:26 -0600 |
commit | b9689791ddd1030f7cd25af21701f56d89e0f3b0 (patch) | |
tree | 2c6f801c7f6aff9b85492b162c310756bed647c5 /src/gallium/drivers/cell/ppu/cell_gen_fp.c | |
parent | 2a3fa97be3d10a6d4e36c6d232afb884efd69d55 (diff) |
cell: massage the emit functions to get better instruction scheduling
Diffstat (limited to 'src/gallium/drivers/cell/ppu/cell_gen_fp.c')
-rw-r--r-- | src/gallium/drivers/cell/ppu/cell_gen_fp.c | 130 |
1 files changed, 74 insertions, 56 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_gen_fp.c b/src/gallium/drivers/cell/ppu/cell_gen_fp.c index 640ebcadbb..e6d994205c 100644 --- a/src/gallium/drivers/cell/ppu/cell_gen_fp.c +++ b/src/gallium/drivers/cell/ppu/cell_gen_fp.c @@ -398,15 +398,19 @@ emit_epilogue(struct codegen *gen) static boolean emit_MOV(struct codegen *gen, const struct tgsi_full_instruction *inst) { - int ch; + int ch, src_reg[4], dst_reg[4]; spe_comment(gen->f, -4, "MOV:"); for (ch = 0; ch < 4; ch++) { if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { - int src_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); - int dst_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + src_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); + dst_reg[ch] = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + } + } + for (ch = 0; ch < 4; ch++) { + if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { /* XXX we don't always need to actually emit a mov instruction here */ - spe_move(gen->f, dst_reg, src_reg); - store_dest_reg(gen, dst_reg, ch, &inst->FullDstRegisters[0]); + spe_move(gen->f, dst_reg[ch], src_reg[ch]); + store_dest_reg(gen, dst_reg[ch], ch, &inst->FullDstRegisters[0]); free_itemps(gen); } } @@ -421,22 +425,25 @@ emit_MOV(struct codegen *gen, const struct tgsi_full_instruction *inst) static boolean emit_ADD(struct codegen *gen, const struct tgsi_full_instruction *inst) { - int ch; + int ch, s1_reg[4], s2_reg[4], d_reg[4]; + spe_comment(gen->f, -4, "ADD:"); - /* Loop over Red/Green/Blue/Alpha channels */ + /* Loop over Red/Green/Blue/Alpha channels, fetch src operands */ for (ch = 0; ch < 4; ch++) { /* If the dest R, G, B or A writemask is enabled... */ if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { - /* get indexes of the two src, one dest SPE registers */ - int s1_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); - int s2_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); - int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); - + s1_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); + s2_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); + d_reg[ch] = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + } + } + /* Loop over Red/Green/Blue/Alpha channels, do the add, store results */ + for (ch = 0; ch < 4; ch++) { + if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { /* Emit actual SPE instruction: d = s1 + s2 */ - spe_fa(gen->f, d_reg, s1_reg, s2_reg); - + spe_fa(gen->f, d_reg[ch], s1_reg[ch], s2_reg[ch]); /* Store the result (a no-op for TGSI_FILE_TEMPORARY dests) */ - store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); + store_dest_reg(gen, d_reg[ch], ch, &inst->FullDstRegisters[0]); /* Free any intermediate temps we allocated */ free_itemps(gen); } @@ -450,23 +457,20 @@ emit_ADD(struct codegen *gen, const struct tgsi_full_instruction *inst) static boolean emit_SUB(struct codegen *gen, const struct tgsi_full_instruction *inst) { - int ch; + int ch, s1_reg[4], s2_reg[4], d_reg[4]; spe_comment(gen->f, -4, "SUB:"); - /* Loop over Red/Green/Blue/Alpha channels */ for (ch = 0; ch < 4; ch++) { - /* If the dest R, G, B or A writemask is enabled... */ if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { - /* get indexes of the two src, one dest SPE registers */ - int s1_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); - int s2_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); - int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); - - /* Emit actual SPE instruction: d = s1 - s2 */ - spe_fs(gen->f, d_reg, s1_reg, s2_reg); - - /* Store the result (a no-op for TGSI_FILE_TEMPORARY dests) */ - store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); - /* Free any intermediate temps we allocated */ + s1_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); + s2_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); + d_reg[ch] = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + } + } + for (ch = 0; ch < 4; ch++) { + if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { + /* d = s1 - s2 */ + spe_fm(gen->f, d_reg[ch], s1_reg[ch], s2_reg[ch]); + store_dest_reg(gen, d_reg[ch], ch, &inst->FullDstRegisters[0]); free_itemps(gen); } } @@ -479,17 +483,21 @@ emit_SUB(struct codegen *gen, const struct tgsi_full_instruction *inst) static boolean emit_MAD(struct codegen *gen, const struct tgsi_full_instruction *inst) { - int ch; + int ch, s1_reg[4], s2_reg[4], s3_reg[4], d_reg[4]; spe_comment(gen->f, -4, "MAD:"); for (ch = 0; ch < 4; ch++) { if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { - int s1_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); - int s2_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); - int s3_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[2]); - int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + s1_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); + s2_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); + s3_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[2]); + d_reg[ch] = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + } + } + for (ch = 0; ch < 4; ch++) { + if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { /* d = s1 * s2 + s3 */ - spe_fma(gen->f, d_reg, s1_reg, s2_reg, s3_reg); - store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); + spe_fma(gen->f, d_reg[ch], s1_reg[ch], s2_reg[ch], s3_reg[ch]); + store_dest_reg(gen, d_reg[ch], ch, &inst->FullDstRegisters[0]); free_itemps(gen); } } @@ -527,16 +535,20 @@ emit_LERP(struct codegen *gen, const struct tgsi_full_instruction *inst) static boolean emit_MUL(struct codegen *gen, const struct tgsi_full_instruction *inst) { - int ch; + int ch, s1_reg[4], s2_reg[4], d_reg[4]; spe_comment(gen->f, -4, "MUL:"); for (ch = 0; ch < 4; ch++) { if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { - int s1_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); - int s2_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); - int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + s1_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]); + s2_reg[ch] = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]); + d_reg[ch] = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + } + } + for (ch = 0; ch < 4; ch++) { + if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { /* d = s1 * s2 */ - spe_fm(gen->f, d_reg, s1_reg, s2_reg); - store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); + spe_fm(gen->f, d_reg[ch], s1_reg[ch], s2_reg[ch]); + store_dest_reg(gen, d_reg[ch], ch, &inst->FullDstRegisters[0]); free_itemps(gen); } } @@ -621,29 +633,35 @@ static boolean emit_DP3(struct codegen *gen, const struct tgsi_full_instruction *inst) { int ch; + int s1x_reg, s1y_reg, s1z_reg; + int s2x_reg, s2y_reg, s2z_reg; + int t0_reg = get_itemp(gen), t1_reg = get_itemp(gen); + spe_comment(gen->f, -4, "DP3:"); - int s1_reg = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[0]); - int s2_reg = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[1]); - int tmp_reg = get_itemp(gen); + s1x_reg = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[0]); + s2x_reg = get_src_reg(gen, CHAN_X, &inst->FullSrcRegisters[1]); + s1y_reg = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[0]); + s2y_reg = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[1]); + s1z_reg = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[0]); + s2z_reg = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[1]); - /* t = x0 * x1 */ - spe_fm(gen->f, tmp_reg, s1_reg, s2_reg); + /* t0 = x0 * x1 */ + spe_fm(gen->f, t0_reg, s1x_reg, s2x_reg); - s1_reg = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[0]); - s2_reg = get_src_reg(gen, CHAN_Y, &inst->FullSrcRegisters[1]); - /* t = y0 * y1 + t */ - spe_fma(gen->f, tmp_reg, s1_reg, s2_reg, tmp_reg); + /* t1 = y0 * y1 */ + spe_fm(gen->f, t1_reg, s1y_reg, s2y_reg); - s1_reg = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[0]); - s2_reg = get_src_reg(gen, CHAN_Z, &inst->FullSrcRegisters[1]); - /* t = z0 * z1 + t */ - spe_fma(gen->f, tmp_reg, s1_reg, s2_reg, tmp_reg); + /* t0 = z0 * z1 + t0 */ + spe_fma(gen->f, t0_reg, s1z_reg, s2z_reg, t0_reg); + + /* t0 = t0 + t1 */ + spe_fa(gen->f, t0_reg, t0_reg, t1_reg); for (ch = 0; ch < 4; ch++) { if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) { int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); - spe_move(gen->f, d_reg, tmp_reg); + spe_move(gen->f, d_reg, t0_reg); store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); } } |