glsl: fix off by one in register index assertion

diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 98da90d359ad0bfddaea2bb51e3feb3a523bb612..4f263add7a4b71cccde08204e82f03bd4c67409a 100644 (file)
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -2239,7 +2239,7 @@ mesa_src_reg_from_ir_src_reg(ir_to_mesa_src_reg reg)
    struct prog_src_register mesa_reg;
 
    mesa_reg.File = reg.file;
-   assert(reg.index < (1 << INST_INDEX_BITS) - 1);
+   assert(reg.index < (1 << INST_INDEX_BITS));
    mesa_reg.Index = reg.index;
    mesa_reg.Swizzle = reg.swizzle;
    mesa_reg.RelAddr = reg.reladdr != NULL;