llvm/test/Transforms/GVN/basic-stats.ll


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

; REQUIRES: asserts
; RUN: opt < %s -stats -passes=gvn -disable-output 2>&1 | FileCheck %s

define i32 @main() {
block1:
  %z1 = bitcast i32 0 to i32
  br label %block2
block2:
  %z2 = bitcast i32 0 to i32
  ret i32 %z2
}

; CHECK-DAG: 1 gvn - Number of blocks merged
; CHECK-DAG: 2 gvn - Number of instructions deleted
; CHECK-DAG: 2 gvn - Number of instructions simplified