16 lines · plain
1; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- -o %t2; RUN: grep slwi %t3; RUN: not grep addi %t4; RUN: not grep rlwinm %t5 6define i32 @test(i32 %A) {7 ;; shift8 %B = mul i32 %A, 8 ; <i32> [#uses=1]9 ;; dead, no demanded bits.10 %C = add i32 %B, 7 ; <i32> [#uses=1]11 ;; dead once add is gone.12 %D = and i32 %C, -8 ; <i32> [#uses=1]13 ret i32 %D14}15 16