glsl2: Add a pass to convert exp and log to exp2 and log2.
Fixes ir_to_mesa handling of unop_log, which used the weird ARB_vp LOG
opcode that doesn't do what we want. This also lets the multiplication
coefficients in there get constant-folded, possibly.
Fixes:
glsl-fs-log
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 0501169..9d6de24 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -1281,6 +1281,7 @@
do_mat_op_to_vec(ir);
do_mod_to_fract(ir);
do_div_to_mul_rcp(ir);
+ do_explog_to_explog2(ir);
do {
progress = false;