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Add Thumb2 pkhbt / pkhtb.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74895 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -966,9 +966,6 @@ def t2REV16 : T2I<(outs GPR:$dst), (ins GPR:$src),
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(or (and (srl GPR:$src, (i32 8)), 0xFF0000),
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(and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>;
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/////
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/// A8.6.137 REVSH
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/////
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def t2REVSH : T2I<(outs GPR:$dst), (ins GPR:$src),
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"revsh", " $dst, $src",
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[(set GPR:$dst,
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@ -976,7 +973,31 @@ def t2REVSH : T2I<(outs GPR:$dst), (ins GPR:$src),
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(or (srl (and GPR:$src, 0xFFFF), (i32 8)),
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(shl GPR:$src, (i32 8))), i16))]>;
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// FIXME: PKHxx etc.
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def t2PKHBT : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
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"pkhbt", " $dst, $src1, $src2, LSL $shamt",
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[(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
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(and (shl GPR:$src2, (i32 imm:$shamt)),
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0xFFFF0000)))]>;
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// Alternate cases for PKHBT where identities eliminate some nodes.
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def : T2Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
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(t2PKHBT GPR:$src1, GPR:$src2, 0)>;
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def : T2Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
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(t2PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>;
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def t2PKHTB : T2I<(outs GPR:$dst), (ins GPR:$src1, GPR:$src2, i32imm:$shamt),
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"pkhtb", " $dst, $src1, $src2, ASR $shamt",
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[(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
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(and (sra GPR:$src2, imm16_31:$shamt),
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0xFFFF)))]>;
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// Alternate cases for PKHTB where identities eliminate some nodes. Note that
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// a shift amount of 0 is *not legal* here, it is PKHBT instead.
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def : T2Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
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(t2PKHTB GPR:$src1, GPR:$src2, 16)>;
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def : T2Pat<(or (and GPR:$src1, 0xFFFF0000),
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(and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
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(t2PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>;
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//===----------------------------------------------------------------------===//
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// Comparison Instructions...
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73
test/CodeGen/Thumb2/thumb2-pack.ll
Normal file
73
test/CodeGen/Thumb2/thumb2-pack.ll
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@ -0,0 +1,73 @@
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; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \
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; RUN: grep pkhbt | count 5
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; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | \
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; RUN: grep pkhtb | count 4
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define i32 @test1(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp4 = shl i32 %Y, 16 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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define i32 @test1a(i32 %X, i32 %Y) {
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%tmp19 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp37 = shl i32 %Y, 16 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp37, %tmp19 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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define i32 @test2(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp3 = shl i32 %Y, 12 ; <i32> [#uses=1]
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%tmp4 = and i32 %tmp3, -65536 ; <i32> [#uses=1]
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%tmp57 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp57
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}
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define i32 @test3(i32 %X, i32 %Y) {
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%tmp19 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp37 = shl i32 %Y, 18 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp37, %tmp19 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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define i32 @test4(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, 65535 ; <i32> [#uses=1]
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%tmp3 = and i32 %Y, -65536 ; <i32> [#uses=1]
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%tmp46 = or i32 %tmp3, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp46
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}
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define i32 @test5(i32 %X, i32 %Y) {
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%tmp17 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp2 = bitcast i32 %Y to i32 ; <i32> [#uses=1]
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%tmp4 = lshr i32 %tmp2, 16 ; <i32> [#uses=2]
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%tmp5 = or i32 %tmp4, %tmp17 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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define i32 @test5a(i32 %X, i32 %Y) {
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%tmp110 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp37 = lshr i32 %Y, 16 ; <i32> [#uses=1]
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%tmp39 = bitcast i32 %tmp37 to i32 ; <i32> [#uses=1]
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%tmp5 = or i32 %tmp39, %tmp110 ; <i32> [#uses=1]
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ret i32 %tmp5
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}
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define i32 @test6(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp37 = lshr i32 %Y, 12 ; <i32> [#uses=1]
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%tmp38 = bitcast i32 %tmp37 to i32 ; <i32> [#uses=1]
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%tmp4 = and i32 %tmp38, 65535 ; <i32> [#uses=1]
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%tmp59 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp59
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}
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define i32 @test7(i32 %X, i32 %Y) {
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%tmp1 = and i32 %X, -65536 ; <i32> [#uses=1]
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%tmp3 = ashr i32 %Y, 18 ; <i32> [#uses=1]
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%tmp4 = and i32 %tmp3, 65535 ; <i32> [#uses=1]
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%tmp57 = or i32 %tmp4, %tmp1 ; <i32> [#uses=1]
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ret i32 %tmp57
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}
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