| Geoff Berry | 5bf4a5e | 2018-04-06 18:47:33 +0000 | [diff] [blame] | 1 | ; REQUIRES: asserts |
| Bryan Chan | 3404add | 2020-08-30 19:17:43 -0400 | [diff] [blame] | 2 | ; RUN: opt -S -debug-counter=early-cse-skip=1,early-cse-count=1 -early-cse -earlycse-debug-hash < %s 2>&1 | FileCheck %s |
| Geoff Berry | 5bf4a5e | 2018-04-06 18:47:33 +0000 | [diff] [blame] | 3 | ;; Test that, with debug counters on, we only optimize the second CSE opportunity. |
| 4 | define i32 @test(i32 %a, i32 %b) { |
| 5 | ; CHECK-LABEL: @test( |
| 6 | ; CHECK-NEXT: bb: |
| 7 | ; CHECK-NEXT: %add1 = add i32 %a, %b |
| 8 | ; CHECK-NEXT: %add2 = add i32 %a, %b |
| 9 | ; CHECK-NEXT: %add4 = add i32 %a, %b |
| 10 | ; CHECK-NEXT: %ret1 = add i32 %add1, %add2 |
| 11 | ; CHECK-NEXT: %ret2 = add i32 %add1, %add4 |
| 12 | ; CHECK-NEXT: %ret = add i32 %ret1, %ret2 |
| 13 | ; CHECK-NEXT: ret i32 %ret |
| 14 | ; |
| 15 | bb: |
| 16 | %add1 = add i32 %a, %b |
| 17 | %add2 = add i32 %a, %b |
| 18 | %add3 = add i32 %a, %b |
| 19 | %add4 = add i32 %a, %b |
| 20 | %ret1 = add i32 %add1, %add2 |
| 21 | %ret2 = add i32 %add3, %add4 |
| 22 | %ret = add i32 %ret1, %ret2 |
| 23 | ret i32 %ret |
| 24 | } |
| 25 | |
| 26 | |
| 27 | |