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authorKenneth Graunke <[email protected]>2015-02-10 03:36:47 -0800
committerKenneth Graunke <[email protected]>2015-02-17 15:24:15 -0800
commit7bf774034a20e6864d63caf8c65cc424454b1bed (patch)
tree6ce9a293c964451c30704ef9bcf88e7c9515beb7 /src/gallium/drivers
parent27b6ef7ecaa60ce192ec74eef2245c25ed4e703b (diff)
i915g: Use the actual MIN instruction.
Matt Turner noticed that the hardware has always had a MIN instruction, but the driver always used MAX+MOV for no apparent reason. This should cut an instruction, and a temporary, allowing more programs to run in hardware. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]> Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/i915/i915_fpc_translate.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/src/gallium/drivers/i915/i915_fpc_translate.c b/src/gallium/drivers/i915/i915_fpc_translate.c
index 4f5fdd84e66..b74f8239bb4 100644
--- a/src/gallium/drivers/i915/i915_fpc_translate.c
+++ b/src/gallium/drivers/i915/i915_fpc_translate.c
@@ -764,21 +764,7 @@ i915_translate_instruction(struct i915_fp_compile *p,
break;
case TGSI_OPCODE_MIN:
- src0 = src_vector(p, &inst->Src[0], fs);
- src1 = src_vector(p, &inst->Src[1], fs);
- tmp = i915_get_utemp(p);
- flags = get_result_flags(inst);
-
- i915_emit_arith(p,
- A0_MAX,
- tmp, flags & A0_DEST_CHANNEL_ALL, 0,
- negate(src0, 1, 1, 1, 1),
- negate(src1, 1, 1, 1, 1), 0);
-
- i915_emit_arith(p,
- A0_MOV,
- get_result_vector(p, &inst->Dst[0]),
- flags, 0, negate(tmp, 1, 1, 1, 1), 0, 0);
+ emit_simple_arith(p, inst, A0_MIN, 2, fs);
break;
case TGSI_OPCODE_MOV: