forked from OSchip/llvm-project
16 lines
415 B
LLVM
16 lines
415 B
LLVM
; RUN: llc < %s -march=ppc32 -o %t
|
|
; RUN: grep slwi %t
|
|
; RUN: not grep addi %t
|
|
; RUN: not grep rlwinm %t
|
|
|
|
define i32 @test(i32 %A) {
|
|
;; shift
|
|
%B = mul i32 %A, 8 ; <i32> [#uses=1]
|
|
;; dead, no demanded bits.
|
|
%C = add i32 %B, 7 ; <i32> [#uses=1]
|
|
;; dead once add is gone.
|
|
%D = and i32 %C, -8 ; <i32> [#uses=1]
|
|
ret i32 %D
|
|
}
|
|
|