27 lines
862 B
LLVM
27 lines
862 B
LLVM
; Test that llvm-reduce can remove uninteresting instructions.
|
|
;
|
|
; RUN: llvm-reduce --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
|
|
}
|