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authorIan Romanick <[email protected]>2010-11-24 22:21:10 -0800
committerIan Romanick <[email protected]>2010-12-01 12:01:13 -0800
commitc4285be9a5bd1adaa89050989374b95a9a601cdc (patch)
tree588f3788a24029512cdda1efe5f5831634243bbd /src/mesa
parentda61afa7388f1ce50ef612b89aba2302a052a3bb (diff)
glsl: Lower ir_binop_pow to a sequence of EXP2 and LOG2
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/main/mtypes.h1
-rw-r--r--src/mesa/program/ir_to_mesa.cpp5
2 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 80c20e09d9a..82495714f21 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2197,6 +2197,7 @@ struct gl_shader_compiler_options
GLboolean EmitNoCont; /**< Emit CONT opcode? */
GLboolean EmitNoMainReturn; /**< Emit CONT/RET opcodes? */
GLboolean EmitNoNoise; /**< Emit NOISE opcodes? */
+ GLboolean EmitNoPow; /**< Emit POW opcodes? */
/**
* \name Forms of indirect addressing the driver cannot do.
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index d9d86b6c29f..b274a961b28 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -2849,8 +2849,9 @@ _mesa_ir_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
/* Lowering */
do_mat_op_to_vec(ir);
- lower_instructions(ir, MOD_TO_FRACT | DIV_TO_MUL_RCP | EXP_TO_EXP2
- | LOG_TO_LOG2);
+ lower_instructions(ir, (MOD_TO_FRACT | DIV_TO_MUL_RCP | EXP_TO_EXP2
+ | LOG_TO_LOG2
+ | ((options->EmitNoPow) ? POW_TO_EXP2 : 0)));
progress = do_lower_jumps(ir, true, true, options->EmitNoMainReturn, options->EmitNoCont, options->EmitNoLoops) || progress;