1 ; RUN: llc < %s -march=thumb -mattr=+thumb2,+v7,+t2xtpk | FileCheck %s 2 3 define i32 @f1(i32 %a) { 4 ; CHECK-LABEL: f1: 5 ; CHECK: rev r0, r0 6 %tmp = tail call i32 @llvm.bswap.i32(i32 %a) 7 ret i32 %tmp 8 } 9 10 declare i32 @llvm.bswap.i32(i32) nounwind readnone 11 12 define i32 @f2(i32 %X) { 13 ; CHECK-LABEL: f2: 14 ; CHECK: revsh r0, r0 15 %tmp1 = lshr i32 %X, 8 16 %tmp1.upgrd.1 = trunc i32 %tmp1 to i16 17 %tmp3 = trunc i32 %X to i16 18 %tmp2 = and i16 %tmp1.upgrd.1, 255 19 %tmp4 = shl i16 %tmp3, 8 20 %tmp5 = or i16 %tmp2, %tmp4 21 %tmp5.upgrd.2 = sext i16 %tmp5 to i32 22 ret i32 %tmp5.upgrd.2 23 } 24
