forked from OSchip/llvm-project
30 lines
974 B
LLVM
30 lines
974 B
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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;
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; RUN: llvm-reduce --test %p/Inputs/remove-global-vars.py %s -o - | FileCheck %s
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; REQUIRES: plugins
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; CHECK: @interesting = global
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@interesting = global i32 0, align 4
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; CHECK-NOT: global
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@uninteresting = global i32 1, align 4
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define i32 @main() {
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entry:
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; CHECK-NOT: load i32, i32* @uninteresting, align 4
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%0 = load i32, i32* @uninteresting, align 4
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; CHECK: store i32 undef, i32* @interesting, align 4
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store i32 %0, i32* @interesting, align 4
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; CHECK: load i32, i32* @interesting, align 4
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%1 = load i32, i32* @interesting, align 4
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; CHECK-NOT: store i32 %1, i32* @uninteresting, align 4
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store i32 %1, i32* @uninteresting, align 4
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; CHECK: %inc = add nsw i32 undef, 1
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%inc = add nsw i32 %0, 1
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; CHECK: store i32 %inc, i32* @interesting, align 4
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store i32 %inc, i32* @interesting, align 4
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ret i32 0
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}
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