1; Test that llvm-reduce can remove uninteresting Global Variables as well as 2; their direct uses (which in turn are replaced with '0'). 3 4; RUN: llvm-reduce --abort-on-invalid-reduction --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 5; RUN: FileCheck --check-prefixes=CHECK-ALL,CHECK-FINAL --implicit-check-not=uninteresting %s < %t 6 7$interesting5 = comdat any 8 9; CHECK-INTERESTINGNESS: @interesting = {{.*}}global i32{{.*}}, align 4 10; CHECK-INTERESTINGNESS: @interesting2 = global i32 0, align 4 11; CHECK-INTERESTINGNESS: @interesting3 = {{.*}}global i32{{.*}}, align 4 12; CHECK-INTERESTINGNESS: @interesting4 = {{.*}}constant i32{{.*}}, align 4 13; CHECK-INTERESTINGNESS: @interesting5 = {{.*}}global i32{{.*}}, align 4 14 15; CHECK-FINAL: @interesting = external global i32, align 4 16; CHECK-FINAL: @interesting2 = global i32 0, align 4 17; CHECK-FINAL: @interesting3 = external global i32, align 4 18; CHECK-FINAL: @interesting4 = external dso_local constant i32, align 4 19; CHECK-FINAL: @interesting5 = external global i32, align 4 20@interesting = global i32 0, align 4 21@interesting2 = global i32 0, align 4 22@interesting3 = external global i32, align 4 23@interesting4 = private constant i32 2, align 4 24@interesting5 = global i32 2, align 4, comdat 25 26@uninteresting = global i32 1, align 4 27@uninteresting2 = external global i32, align 4 28 29define i32 @main() { 30entry: 31 %0 = load i32, ptr @uninteresting, align 4 32 33 ; CHECK-INTERESTINGNESS: store i32 {{.*}}, ptr @interesting, align 4 34 ; CHECK-FINAL: store i32 %0, ptr @interesting, align 4 35 store i32 %0, ptr @interesting, align 4 36 37 ; CHECK-INTERESTINGNESS: store i32 {{.*}}, ptr @interesting3, align 4 38 ; CHECK-FINAL: store i32 %0, ptr @interesting3, align 4 39 store i32 %0, ptr @interesting3, align 4 40 41 ; CHECK-ALL: load i32, ptr @interesting, align 4 42 %1 = load i32, ptr @interesting, align 4 43 store i32 %1, ptr @uninteresting, align 4 44 45 ; CHECK-ALL: load i32, ptr @interesting3, align 4 46 %2 = load i32, ptr @interesting3, align 4 47 store i32 %2, ptr @uninteresting2, align 4 48 49 ; CHECK-ALL: store i32 5, ptr @interesting, align 4 50 store i32 5, ptr @interesting, align 4 51 52 ; CHECK-ALL: store i32 5, ptr @interesting3, align 4 53 store i32 5, ptr @interesting3, align 4 54 55 ret i32 0 56} 57