Disable Subzero IR generation for performance testing.

tests_lit/reader_tests/call-indirect.ll

 ; Test parsing indirect calls in Subzero.
 
 ; RUN: %p2i -i %s --insts | FileCheck %s
+; RUN: %if --need=allow_disable_ir_gen --command \
+; RUN:   %p2i -i %s --args -notranslate -timing -no-ir-gen \
+; RUN: | %if --need=allow_disable_ir_gen --command \
+; RUN:   FileCheck --check-prefix=NOIR %s
 
 define internal void @CallIndirectVoid(i32 %f_addr) {
 entry:
   %f = inttoptr i32 %f_addr to void ()*
   call void %f()
   ret void
 }
 
 ; CHECK:      define internal void @CallIndirectVoid(i32 %f_addr) {
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT:   call void %f_addr()
 ; CHECK-NEXT:   ret void
 ; CHECK-NEXT: }
 
 define internal i32 @CallIndirectI32(i32 %f_addr) {
 entry:
   %f = inttoptr i32 %f_addr to i32(i8, i1)*
   %r = call i32 %f(i8 1, i1 false)
   ret i32 %r
 }
 
 ; CHECK-NEXT: define internal i32 @CallIndirectI32(i32 %f_addr) {
 ; CHECK-NEXT: entry:
 ; CHECK-NEXT:   %r = call i32 %f_addr(i8 1, i1 false)
 ; CHECK-NEXT:   ret i32 %r
 ; CHECK-NEXT: }
+
+; NOIR: Total across all functions