| ; Test that llvm-reduce can remove uninteresting Global Variables as well as |
| ; their direct uses (which in turn are replaced with 'undef'). |
| |
| ; RUN: llvm-reduce --delta-passes=global-variables,global-initializers --test FileCheck --test-arg --check-prefixes=CHECK-ALL,CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t |
| ; RUN: cat %t | FileCheck --check-prefixes=CHECK-ALL,CHECK-FINAL --implicit-check-not=uninteresting %s |
| |
| $interesting5 = comdat any |
| |
| ; CHECK-INTERESTINGNESS: @interesting = {{.*}}global i32{{.*}}, align 4 |
| ; CHECK-INTERESTINGNESS: @interesting2 = global i32 0, align 4 |
| ; CHECK-INTERESTINGNESS: @interesting3 = {{.*}}global i32{{.*}}, align 4 |
| ; CHECK-INTERESTINGNESS: @interesting4 = {{.*}}constant i32{{.*}}, align 4 |
| ; CHECK-INTERESTINGNESS: @interesting5 = {{.*}}global i32{{.*}}, align 4 |
| |
| ; CHECK-FINAL: @interesting = external global i32, align 4 |
| ; CHECK-FINAL: @interesting2 = global i32 0, align 4 |
| ; CHECK-FINAL: @interesting3 = external global i32, align 4 |
| ; CHECK-FINAL: @interesting4 = external dso_local constant i32, align 4 |
| ; CHECK-FINAL: @interesting5 = external global i32, align 4 |
| @interesting = global i32 0, align 4 |
| @interesting2 = global i32 0, align 4 |
| @interesting3 = external global i32, align 4 |
| @interesting4 = private constant i32 2, align 4 |
| @interesting5 = global i32 2, align 4, comdat |
| |
| @uninteresting = global i32 1, align 4 |
| @uninteresting2 = external global i32, align 4 |
| |
| define i32 @main() { |
| entry: |
| %0 = load i32, i32* @uninteresting, align 4 |
| |
| ; CHECK-INTERESTINGNESS: store i32 {{.*}}, i32* @interesting, align 4 |
| ; CHECK-FINAL: store i32 undef, i32* @interesting, align 4 |
| store i32 %0, i32* @interesting, align 4 |
| |
| ; CHECK-INTERESTINGNESS: store i32 {{.*}}, i32* @interesting3, align 4 |
| ; CHECK-FINAL: store i32 undef, i32* @interesting3, align 4 |
| store i32 %0, i32* @interesting3, align 4 |
| |
| ; CHECK-ALL: load i32, i32* @interesting, align 4 |
| %1 = load i32, i32* @interesting, align 4 |
| store i32 %1, i32* @uninteresting, align 4 |
| |
| ; CHECK-ALL: load i32, i32* @interesting3, align 4 |
| %2 = load i32, i32* @interesting3, align 4 |
| store i32 %2, i32* @uninteresting2, align 4 |
| |
| ; CHECK-ALL: store i32 5, i32* @interesting, align 4 |
| store i32 5, i32* @interesting, align 4 |
| |
| ; CHECK-ALL: store i32 5, i32* @interesting3, align 4 |
| store i32 5, i32* @interesting3, align 4 |
| |
| ret i32 0 |
| } |