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authorNicolai Hähnle <[email protected]>2017-09-15 16:52:23 +0200
committerNicolai Hähnle <[email protected]>2017-09-29 12:08:03 +0200
commit6de5147d2024a282f064d3bcf6103240d283da72 (patch)
tree8e4e0ea6c25cd067c14f310d0d9666cb71a1e2b9 /src/mesa/state_tracker/st_glsl_to_tgsi.cpp
parentcad959d90145226c1ef8314c6f6cc1f7094bd572 (diff)
st/glsl_to_tgsi: use LDEXP when available
Reviewed-by: Marek Olšák <[email protected]> Tested-by: Dieter Nützel <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker/st_glsl_to_tgsi.cpp')
-rw-r--r--src/mesa/state_tracker/st_glsl_to_tgsi.cpp10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 0daf5a14285..50a71e461f6 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -584,10 +584,10 @@ glsl_to_tgsi_visitor::emit_asm(ir_instruction *ir, unsigned op,
} else {
/* some opcodes are special case in what they use as sources
- - [FUI]2D/[UI]2I64 is a float/[u]int src0, DLDEXP is integer src1 */
+ - [FUI]2D/[UI]2I64 is a float/[u]int src0, (D)LDEXP is integer src1 */
if (op == TGSI_OPCODE_F2D || op == TGSI_OPCODE_U2D || op == TGSI_OPCODE_I2D ||
op == TGSI_OPCODE_I2I64 || op == TGSI_OPCODE_U2I64 ||
- op == TGSI_OPCODE_DLDEXP ||
+ op == TGSI_OPCODE_DLDEXP || op == TGSI_OPCODE_LDEXP ||
(op == TGSI_OPCODE_UCMP && dst_is_64bit[0])) {
dinst->src[j].swizzle = MAKE_SWIZZLE4(swz, swz, swz, swz);
}
@@ -2107,6 +2107,8 @@ glsl_to_tgsi_visitor::visit_expression(ir_expression* ir, st_src_reg *op)
case ir_binop_ldexp:
if (ir->operands[0]->type->is_double()) {
emit_asm(ir, TGSI_OPCODE_DLDEXP, result_dst, op[0], op[1]);
+ } else if (ir->operands[0]->type->is_float()) {
+ emit_asm(ir, TGSI_OPCODE_LDEXP, result_dst, op[0], op[1]);
} else {
assert(!"Invalid ldexp for non-double opcode in glsl_to_tgsi_visitor::visit()");
}
@@ -6783,6 +6785,8 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED);
bool have_dfrexp = pscreen->get_shader_param(pscreen, ptarget,
PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED);
+ bool have_ldexp = pscreen->get_shader_param(pscreen, ptarget,
+ PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED);
unsigned if_threshold = pscreen->get_shader_param(pscreen, ptarget,
PIPE_SHADER_CAP_LOWER_IF_THRESHOLD);
@@ -6833,7 +6837,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
FDIV_TO_MUL_RCP |
EXP_TO_EXP2 |
LOG_TO_LOG2 |
- LDEXP_TO_ARITH |
+ (have_ldexp ? 0 : LDEXP_TO_ARITH) |
(have_dfrexp ? 0 : DFREXP_DLDEXP_TO_ARITH) |
CARRY_TO_ARITH |
BORROW_TO_ARITH |