1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 4 5 define i16 @test1(i16 %a) { 6 %tmp = zext i16 %a to i32 ; <i32> [#uses=2] 7 %tmp21 = lshr i32 %tmp, 8 ; <i32> [#uses=1] 8 ; CHECK: %tmp21 = lshr i16 %a, 8 9 %tmp5 = mul i32 %tmp, 5 ; <i32> [#uses=1] 10 ; CHECK: %tmp5 = mul i16 %a, 5 11 %tmp.upgrd.32 = or i32 %tmp21, %tmp5 ; <i32> [#uses=1] 12 ; CHECK: %tmp.upgrd.32 = or i16 %tmp21, %tmp5 13 %tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16 ; <i16> [#uses=1] 14 ret i16 %tmp.upgrd.3 15 ; CHECK: ret i16 %tmp.upgrd.32 16 } 17 18
