-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2,+v7a | grep {rev\\.w\\W*r\[0-9\]*,\\W*r\[0-9\]*} | count 1
+; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2,+v7,+t2xtpk %s -o - | FileCheck %s
define i32 @f1(i32 %a) {
+; CHECK-LABEL: f1:
+; CHECK: rev r0, r0
%tmp = tail call i32 @llvm.bswap.i32(i32 %a)
ret i32 %tmp
}
declare i32 @llvm.bswap.i32(i32) nounwind readnone
+
+define i32 @f2(i32 %X) {
+; CHECK-LABEL: f2:
+; CHECK: revsh r0, r0
+ %tmp1 = lshr i32 %X, 8
+ %tmp1.upgrd.1 = trunc i32 %tmp1 to i16
+ %tmp3 = trunc i32 %X to i16
+ %tmp2 = and i16 %tmp1.upgrd.1, 255
+ %tmp4 = shl i16 %tmp3, 8
+ %tmp5 = or i16 %tmp2, %tmp4
+ %tmp5.upgrd.2 = sext i16 %tmp5 to i32
+ ret i32 %tmp5.upgrd.2
+}