diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 7280b6bac26..0ada5837cfd 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2367,6 +2367,18 @@ fs_visitor::opt_algebraic()
             break;
          }
          break;
+      case BRW_OPCODE_CMP:
+         if (inst->conditional_mod == BRW_CONDITIONAL_GE &&
+             inst->src[0].abs &&
+             inst->src[0].negate &&
+             inst->src[1].is_zero()) {
+            inst->src[0].abs = false;
+            inst->src[0].negate = false;
+            inst->conditional_mod = BRW_CONDITIONAL_Z;
+            progress = true;
+            break;
+         }
+         break;
       case BRW_OPCODE_SEL:
          if (inst->src[0].equals(inst->src[1])) {
             inst->opcode = BRW_OPCODE_MOV;
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 0fac9495210..89881967dfd 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -693,6 +693,18 @@ vec4_visitor::opt_algebraic()
 	    progress = true;
 	 }
 	 break;
+      case BRW_OPCODE_CMP:
+         if (inst->conditional_mod == BRW_CONDITIONAL_GE &&
+             inst->src[0].abs &&
+             inst->src[0].negate &&
+             inst->src[1].is_zero()) {
+            inst->src[0].abs = false;
+            inst->src[0].negate = false;
+            inst->conditional_mod = BRW_CONDITIONAL_Z;
+            progress = true;
+            break;
+         }
+         break;
       case SHADER_OPCODE_RCP: {
          vec4_instruction *prev = (vec4_instruction *)inst->prev;
          if (prev->opcode == SHADER_OPCODE_SQRT) {