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; Test that llvm-reduce can remove uninteresting instructions.
;
; RUN: llvm-reduce -abort-on-invalid-reduction --test %python --test-arg %p/Inputs/remove-instructions.py %s -o %t
; RUN: cat %t | FileCheck -implicit-check-not=uninteresting %s
; REQUIRES: plugins
; We're testing all direct uses of %interesting are conserved. The terminator
; (ret) must also be preserved.
; CHECK-COUNT-5: %interesting
; CHECK: ret
define i32 @main() #0 {
entry:
%uninteresting1 = alloca i32, align 4
%interesting = alloca i32, align 4
%uninteresting2 = alloca i32, align 4
store i32 0, ptr %uninteresting1, align 4
store i32 0, ptr %interesting, align 4
%0 = load i32, ptr %interesting, align 4
%uninteresting3 = add nsw i32 %0, 1
store i32 %uninteresting3, ptr %interesting, align 4
%1 = load i32, ptr %interesting, align 4
store i32 %1, ptr %uninteresting2, align 4
ret i32 0
}
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