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r600/sb: use safe math optimizations when TGSI contains precise operations

Browse source 
Fixes:
  dEQP-GLES3.functional.shaders.invariance.highp.common_subexpression_3
  dEQP-GLES3.functional.shaders.invariance.mediump.common_subexpression_3
  dEQP-GLES3.functional.shaders.invariance.lowp.common_subexpression_3

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This commit is contained in:
Gert Wollny 2018-09-14 16:56:48 +02:00
parent cc3b99bb48
commit 14976817f4
3 changed files with 5 additions and 1 deletions
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1
src/gallium/drivers/r600/r600_asm.h
View file

@ -277,6 +277,7 @@ struct r600_bytecode {
struct r600_bytecode_output pending_outputs[5];
int n_pending_outputs;
boolean need_wait_ack; /* emit a pending WAIT_ACK prior to control flow */
boolean precise;
};
/* eg_asm.c */

3
src/gallium/drivers/r600/r600_shader.c
View file

@ -3879,6 +3879,9 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
ctx.inst_info = &eg_shader_tgsi_instruction[opcode];
else
ctx.inst_info = &r600_shader_tgsi_instruction[opcode];
ctx.bc->precise |= ctx.parse.FullToken.FullInstruction.Instruction.Precise;
r = ctx.inst_info->process(&ctx);
if (r)
goto out_err;

2
src/gallium/drivers/r600/sb/sb_bc_parser.cpp
View file

@ -75,7 +75,7 @@ int bc_parser::decode() {
}
sh = new shader(ctx, t, bc->debug_id);
sh->safe_math = sb_context::safe_math || (t == TARGET_COMPUTE);
sh->safe_math = sb_context::safe_math || (t == TARGET_COMPUTE || bc->precise);
int r = decode_shader();