glsl: Fix off-by-one error in array size check assertion

Apparently, this has been a bug since 2010 (c30f6e5d).

Also use ARRAY_SIZE instead of open coding it.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org

diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp
index 8b5ba71..80cbdbf 100644 (file)
--- a/src/glsl/ir.cpp
+++ b/src/glsl/ir.cpp
@@ -1425,8 +1425,7 @@ static const char * const tex_opcode_strs[] = { "tex", "txb", "txl", "txd", "txf
 
 const char *ir_texture::opcode_string()
 {
-   assert((unsigned int) op <=
-         sizeof(tex_opcode_strs) / sizeof(tex_opcode_strs[0]));
+   assert((unsigned int) op < ARRAY_SIZE(tex_opcode_strs));
    return tex_opcode_strs[op];
 }