xref: /llvm-project/llvm/test/CodeGen/ARM/rev.ll (revision a5007faaa68de9487fe63b690bea6e16c3c5f770)
1; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm &&
2; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm -mattr=+v6 | grep rev16 &&
3; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm -mattr=+v6 | grep revsh
4
5int %test1(uint %X) {
6        %tmp1 = shr uint %X, ubyte 8            ; <uint> [#uses=1]
7        %tmp1 = cast uint %tmp1 to int          ; <int> [#uses=2]
8        %X15 = cast uint %X to int              ; <int> [#uses=1]
9        %tmp4 = shl int %X15, ubyte 8           ; <int> [#uses=2]
10        %tmp2 = and int %tmp1, 16711680         ; <int> [#uses=1]
11        %tmp5 = and int %tmp4, -16777216                ; <int> [#uses=1]
12        %tmp9 = and int %tmp1, 255              ; <int> [#uses=1]
13        %tmp13 = and int %tmp4, 65280           ; <int> [#uses=1]
14        %tmp6 = or int %tmp5, %tmp2             ; <int> [#uses=1]
15        %tmp10 = or int %tmp6, %tmp13           ; <int> [#uses=1]
16        %tmp14 = or int %tmp10, %tmp9           ; <int> [#uses=1]
17        ret int %tmp14
18}
19
20int %test2(uint %X) {   ; revsh
21        %tmp1 = shr uint %X, ubyte 8            ; <uint> [#uses=1]
22        %tmp1 = cast uint %tmp1 to short                ; <short> [#uses=1]
23        %tmp3 = cast uint %X to short           ; <short> [#uses=1]
24        %tmp2 = and short %tmp1, 255            ; <short> [#uses=1]
25        %tmp4 = shl short %tmp3, ubyte 8                ; <short> [#uses=1]
26        %tmp5 = or short %tmp2, %tmp4           ; <short> [#uses=1]
27        %tmp5 = cast short %tmp5 to int         ; <int> [#uses=1]
28        ret int %tmp5
29}
30
31