From 39d7ec2c9a1b0213fa64c58fe3e1843119a62904 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Wed, 11 Dec 2013 23:07:49 -0800 Subject: i965: Add can_do_saturate() method to backend_instruction. Reviewed-by: Jordan Justen --- src/mesa/drivers/dri/i965/brw_shader.cpp | 44 ++++++++++++++++++++++++++++++++ src/mesa/drivers/dri/i965/brw_shader.h | 1 + 2 files changed, 45 insertions(+) (limited to 'src') diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp index 45bf73091b3..6cc259572f6 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.cpp +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp @@ -603,6 +603,50 @@ backend_instruction::can_do_source_mods() } } +bool +backend_instruction::can_do_saturate() +{ + switch (opcode) { + case BRW_OPCODE_ADD: + case BRW_OPCODE_ASR: + case BRW_OPCODE_AVG: + case BRW_OPCODE_DP2: + case BRW_OPCODE_DP3: + case BRW_OPCODE_DP4: + case BRW_OPCODE_DPH: + case BRW_OPCODE_F16TO32: + case BRW_OPCODE_F32TO16: + case BRW_OPCODE_LINE: + case BRW_OPCODE_LRP: + case BRW_OPCODE_MAC: + case BRW_OPCODE_MACH: + case BRW_OPCODE_MAD: + case BRW_OPCODE_MATH: + case BRW_OPCODE_MOV: + case BRW_OPCODE_MUL: + case BRW_OPCODE_PLN: + case BRW_OPCODE_RNDD: + case BRW_OPCODE_RNDE: + case BRW_OPCODE_RNDU: + case BRW_OPCODE_RNDZ: + case BRW_OPCODE_SEL: + case BRW_OPCODE_SHL: + case BRW_OPCODE_SHR: + case FS_OPCODE_LINTERP: + case SHADER_OPCODE_COS: + case SHADER_OPCODE_EXP2: + case SHADER_OPCODE_LOG2: + case SHADER_OPCODE_POW: + case SHADER_OPCODE_RCP: + case SHADER_OPCODE_RSQ: + case SHADER_OPCODE_SIN: + case SHADER_OPCODE_SQRT: + return true; + default: + return false; + } +} + bool backend_instruction::has_side_effects() const { diff --git a/src/mesa/drivers/dri/i965/brw_shader.h b/src/mesa/drivers/dri/i965/brw_shader.h index 936a2070dc0..c76f33ba5b4 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.h +++ b/src/mesa/drivers/dri/i965/brw_shader.h @@ -45,6 +45,7 @@ public: bool is_math(); bool is_control_flow(); bool can_do_source_mods(); + bool can_do_saturate(); /** * True if the instruction has side effects other than writing to -- cgit v1.2.3