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237baae3ce
Much like with ReduceFunctionBodies delta pass, we need to remove comdat and set linkage to external, else verifier will complain, and our deltas are invalid.
57 lines
2.3 KiB
LLVM
57 lines
2.3 KiB
LLVM
; Test that llvm-reduce can remove uninteresting Global Variables as well as
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; their direct uses (which in turn are replaced with 'undef').
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; RUN: llvm-reduce --test FileCheck --test-arg --check-prefixes=CHECK-ALL,CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t
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; RUN: cat %t | FileCheck --check-prefixes=CHECK-ALL,CHECK-FINAL --implicit-check-not=uninteresting %s
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$interesting5 = comdat any
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; CHECK-INTERESTINGNESS: @interesting = {{.*}}global i32{{.*}}, align 4
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; CHECK-INTERESTINGNESS: @interesting2 = global i32 0, align 4
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; CHECK-INTERESTINGNESS: @interesting3 = {{.*}}global i32{{.*}}, align 4
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; CHECK-INTERESTINGNESS: @interesting4 = {{.*}}constant i32{{.*}}, align 4
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; CHECK-INTERESTINGNESS: @interesting5 = {{.*}}global i32{{.*}}, align 4
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; CHECK-FINAL: @interesting = external global i32, align 4
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; CHECK-FINAL: @interesting2 = global i32 0, align 4
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; CHECK-FINAL: @interesting3 = external global i32, align 4
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; CHECK-FINAL: @interesting4 = external dso_local constant i32, align 4
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; CHECK-FINAL: @interesting5 = external global i32, align 4
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@interesting = global i32 0, align 4
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@interesting2 = global i32 0, align 4
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@interesting3 = external global i32, align 4
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@interesting4 = private constant i32 2, align 4
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@interesting5 = global i32 2, align 4, comdat
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@uninteresting = global i32 1, align 4
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@uninteresting2 = external global i32, align 4
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define i32 @main() {
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entry:
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%0 = load i32, i32* @uninteresting, align 4
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; CHECK-INTERESTINGNESS: store i32 {{.*}}, i32* @interesting, align 4
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; CHECK-FINAL: store i32 undef, i32* @interesting, align 4
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store i32 %0, i32* @interesting, align 4
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; CHECK-INTERESTINGNESS: store i32 {{.*}}, i32* @interesting3, align 4
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; CHECK-FINAL: store i32 undef, i32* @interesting3, align 4
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store i32 %0, i32* @interesting3, align 4
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; CHECK-ALL: load i32, i32* @interesting, align 4
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%1 = load i32, i32* @interesting, align 4
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store i32 %1, i32* @uninteresting, align 4
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; CHECK-ALL: load i32, i32* @interesting3, align 4
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%2 = load i32, i32* @interesting3, align 4
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store i32 %2, i32* @uninteresting2, align 4
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; CHECK-ALL: store i32 5, i32* @interesting, align 4
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store i32 5, i32* @interesting, align 4
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; CHECK-ALL: store i32 5, i32* @interesting3, align 4
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store i32 5, i32* @interesting3, align 4
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ret i32 0
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}
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