llvm-6502/test/Transforms/InstCombine/bswap.ll
Reid Spencer 7c65d4345e For PR1319:
Make use of the END. facility on all files > 1K so that we aren't wasting CPU
cycles searching for RUN: lines that we'll never find.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36059 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 07:38:21 +00:00

63 lines
2.3 KiB
LLVM

; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | \
; RUN: grep {call.*llvm.bswap} | wc -l | grep 5
; END.
uint %test1(uint %i) {
%tmp1 = shr uint %i, ubyte 24 ; <uint> [#uses=1]
%tmp3 = shr uint %i, ubyte 8 ; <uint> [#uses=1]
%tmp4 = and uint %tmp3, 65280 ; <uint> [#uses=1]
%tmp5 = or uint %tmp1, %tmp4 ; <uint> [#uses=1]
%tmp7 = shl uint %i, ubyte 8 ; <uint> [#uses=1]
%tmp8 = and uint %tmp7, 16711680 ; <uint> [#uses=1]
%tmp9 = or uint %tmp5, %tmp8 ; <uint> [#uses=1]
%tmp11 = shl uint %i, ubyte 24 ; <uint> [#uses=1]
%tmp12 = or uint %tmp9, %tmp11 ; <uint> [#uses=1]
ret uint %tmp12
}
uint %test2(uint %arg) {
%tmp2 = shl uint %arg, ubyte 24 ; <uint> [#uses=1]
%tmp4 = shl uint %arg, ubyte 8 ; <uint> [#uses=1]
%tmp5 = and uint %tmp4, 16711680 ; <uint> [#uses=1]
%tmp6 = or uint %tmp2, %tmp5 ; <uint> [#uses=1]
%tmp8 = shr uint %arg, ubyte 8 ; <uint> [#uses=1]
%tmp9 = and uint %tmp8, 65280 ; <uint> [#uses=1]
%tmp10 = or uint %tmp6, %tmp9 ; <uint> [#uses=1]
%tmp12 = shr uint %arg, ubyte 24 ; <uint> [#uses=1]
%tmp14 = or uint %tmp10, %tmp12 ; <uint> [#uses=1]
ret uint %tmp14
}
ushort %test3(ushort %s) {
%tmp2 = shr ushort %s, ubyte 8
%tmp4 = shl ushort %s, ubyte 8
%tmp5 = or ushort %tmp2, %tmp4
ret ushort %tmp5
}
ushort %test4(ushort %s) {
%tmp2 = shr ushort %s, ubyte 8
%tmp4 = shl ushort %s, ubyte 8
%tmp5 = or ushort %tmp4, %tmp2
ret ushort %tmp5
}
; unsigned short test5(unsigned short a) {
; return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
;}
ushort %test5(ushort %a) {
%tmp = zext ushort %a to int
%tmp1 = and int %tmp, 65280
%tmp2 = ashr int %tmp1, ubyte 8
%tmp2 = trunc int %tmp2 to short
%tmp4 = and int %tmp, 255
%tmp5 = shl int %tmp4, ubyte 8
%tmp5 = trunc int %tmp5 to short
%tmp = or short %tmp2, %tmp5
%tmp6 = bitcast short %tmp to ushort
%tmp6 = zext ushort %tmp6 to int
%retval = trunc int %tmp6 to ushort
ret ushort %retval
}