| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; REQUIRES: asserts |
| ; RUN: opt -S -debug-counter=newgvn-vn=1-2 -passes=newgvn < %s 2>&1 | FileCheck %s |
| ;; Test that, with debug counters on, we don't value number the first instruction, only the second and third, |
| ;; which means we do not discover the return is constant. |
| define i32 @vntest() { |
| ; CHECK-LABEL: @vntest( |
| ; CHECK-NEXT: bb: |
| ; CHECK-NEXT: [[A:%.*]] = add i32 1, 3 |
| ; CHECK-NEXT: [[D:%.*]] = add i32 8, 8 |
| ; CHECK-NEXT: ret i32 [[D]] |
| ; |
| bb: |
| %a = add i32 1, 3 |
| %b = add i32 %a, %a |
| %c = add i32 %a, %a |
| %d = add i32 %b, %c |
| ret i32 %d |
| } |
| |
| |
| |
