forked from OSchip/llvm-project
Teach the DAGCombine to fold this pattern(c1 and c2 is constant).
// fold (sext (select cond, c1, c2)) -> (select cond, sext c1, sext c2) // fold (zext (select cond, c1, c2)) -> (select cond, zext c1, zext c2) // fold (aext (select cond, c1, c2)) -> (select cond, sext c1, sext c2) Sign extend the operands if it is any_extend, to keep the signess of the operands that, the other combine rule would apply. The any_extend is handled as zero extend for constants. i.e. t1: i8 = select t0, Constant:i8<-1>, Constant:i8<0> t2: i64 = any_extend t1 --> t3: i64 = select t0, Constant:i64<-1>, Constant:i64<0> --> t4: i64 = sign_extend_inreg t3 Differential Revision: https://reviews.llvm.org/D63318 llvm-svn: 364382
This commit is contained in:
QingShan Zhang
parent
c3dfe9082b
commit
e0e7d4c366
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@ -8902,6 +8902,7 @@ static SDValue tryToFoldExtendOfConstant(SDNode *N, const TargetLowering &TLI,
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unsigned Opcode = N->getOpcode();
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SDValue N0 = N->getOperand(0);
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EVT VT = N->getValueType(0);
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SDLoc DL(N);
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assert((Opcode == ISD::SIGN_EXTEND || Opcode == ISD::ZERO_EXTEND ||
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Opcode == ISD::ANY_EXTEND || Opcode == ISD::SIGN_EXTEND_VECTOR_INREG ||
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@ -8912,7 +8913,33 @@ static SDValue tryToFoldExtendOfConstant(SDNode *N, const TargetLowering &TLI,
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// fold (zext c1) -> c1
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// fold (aext c1) -> c1
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if (isa<ConstantSDNode>(N0))
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return DAG.getNode(Opcode, SDLoc(N), VT, N0);
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return DAG.getNode(Opcode, DL, VT, N0);
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// fold (sext (select cond, c1, c2)) -> (select cond, sext c1, sext c2)
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// fold (zext (select cond, c1, c2)) -> (select cond, zext c1, zext c2)
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// fold (aext (select cond, c1, c2)) -> (select cond, sext c1, sext c2)
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if (N0->getOpcode() == ISD::SELECT) {
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SDValue Op1 = N0->getOperand(1);
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SDValue Op2 = N0->getOperand(2);
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if (isa<ConstantSDNode>(Op1) && isa<ConstantSDNode>(Op2) &&
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(Opcode != ISD::ZERO_EXTEND || !TLI.isZExtFree(N0.getValueType(), VT))) {
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// For any_extend, choose sign extension of the constants to allow a
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// possible further transform to sign_extend_inreg.i.e.
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//
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// t1: i8 = select t0, Constant:i8<-1>, Constant:i8<0>
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// t2: i64 = any_extend t1
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// -->
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// t3: i64 = select t0, Constant:i64<-1>, Constant:i64<0>
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// -->
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// t4: i64 = sign_extend_inreg t3
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unsigned FoldOpc = Opcode;
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if (FoldOpc == ISD::ANY_EXTEND)
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FoldOpc = ISD::SIGN_EXTEND;
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return DAG.getSelect(DL, VT, N0->getOperand(0),
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DAG.getNode(FoldOpc, DL, VT, Op1),
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DAG.getNode(FoldOpc, DL, VT, Op2));
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}
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}
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// fold (sext (build_vector AllConstants) -> (build_vector AllConstants)
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// fold (zext (build_vector AllConstants) -> (build_vector AllConstants)
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@ -8927,7 +8954,6 @@ static SDValue tryToFoldExtendOfConstant(SDNode *N, const TargetLowering &TLI,
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unsigned EVTBits = N0->getValueType(0).getScalarSizeInBits();
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SmallVector<SDValue, 8> Elts;
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unsigned NumElts = VT.getVectorNumElements();
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SDLoc DL(N);
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// For zero-extensions, UNDEF elements still guarantee to have the upper
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// bits set to zero.
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@ -119,7 +119,7 @@ define i16 @low_bit_select_constants_bigger_false_narrower_result(i32 %x) {
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define i8 @low_bit_select_constants_bigger_true_same_size_result(i8 %x) {
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; CHECK-LABEL: low_bit_select_constants_bigger_true_same_size_result:
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; CHECK: # %bb.0:
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; CHECK-NEXT: rlwinm 3, 3, 0, 31, 31
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; CHECK-NEXT: clrldi 3, 3, 63
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; CHECK-NEXT: subfic 3, 3, -29
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; CHECK-NEXT: blr
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%a = and i8 %x, 1
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@ -143,7 +143,7 @@ define i32 @low_bit_select_constants_bigger_true_wider_result(i8 %x) {
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define i8 @low_bit_select_constants_bigger_true_narrower_result(i16 %x) {
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; CHECK-LABEL: low_bit_select_constants_bigger_true_narrower_result:
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; CHECK: # %bb.0:
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; CHECK-NEXT: rlwinm 3, 3, 0, 31, 31
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; CHECK-NEXT: clrldi 3, 3, 63
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; CHECK-NEXT: subfic 3, 3, 41
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; CHECK-NEXT: blr
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%a = and i16 %x, 1
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@ -67,76 +67,31 @@ define i32 @select_1_or_0_signext(i1 signext %cond) {
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; select Cond, 0, -1 --> sext (!Cond)
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define i32 @select_0_or_neg1(i1 %cond) {
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; ISEL-LABEL: select_0_or_neg1:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: ori 3, 3, 65535
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; ISEL-NEXT: isel 3, 0, 3, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: select_0_or_neg1:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: ori 3, 3, 65535
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; NO_ISEL-NEXT: bc 12, 1, .LBB6_1
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; NO_ISEL-NEXT: blr
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; NO_ISEL-NEXT: .LBB6_1:
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; NO_ISEL-NEXT: addi 3, 0, 0
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; NO_ISEL-NEXT: blr
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; ALL-LABEL: select_0_or_neg1:
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; ALL: # %bb.0:
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; ALL-NEXT: not 3, 3
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; ALL-NEXT: clrldi 3, 3, 63
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; ALL-NEXT: neg 3, 3
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; ALL-NEXT: blr
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%sel = select i1 %cond, i32 0, i32 -1
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ret i32 %sel
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}
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define i32 @select_0_or_neg1_zeroext(i1 zeroext %cond) {
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; ISEL-LABEL: select_0_or_neg1_zeroext:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: ori 3, 3, 65535
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; ISEL-NEXT: isel 3, 0, 3, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: select_0_or_neg1_zeroext:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: ori 3, 3, 65535
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; NO_ISEL-NEXT: bc 12, 1, .LBB7_1
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; NO_ISEL-NEXT: blr
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; NO_ISEL-NEXT: .LBB7_1:
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; NO_ISEL-NEXT: addi 3, 0, 0
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; NO_ISEL-NEXT: blr
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; ALL-LABEL: select_0_or_neg1_zeroext:
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; ALL: # %bb.0:
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; ALL-NEXT: xori 3, 3, 1
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; ALL-NEXT: neg 3, 3
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; ALL-NEXT: blr
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%sel = select i1 %cond, i32 0, i32 -1
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ret i32 %sel
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}
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define i32 @select_0_or_neg1_signext(i1 signext %cond) {
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; ISEL-LABEL: select_0_or_neg1_signext:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: ori 3, 3, 65535
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; ISEL-NEXT: isel 3, 0, 3, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: select_0_or_neg1_signext:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: ori 3, 3, 65535
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; NO_ISEL-NEXT: bc 12, 1, .LBB8_1
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; NO_ISEL-NEXT: blr
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; NO_ISEL-NEXT: .LBB8_1:
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; NO_ISEL-NEXT: addi 3, 0, 0
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; NO_ISEL-NEXT: blr
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; ALL-LABEL: select_0_or_neg1_signext:
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; ALL: # %bb.0:
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; ALL-NEXT: not 3, 3
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; ALL-NEXT: blr
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%sel = select i1 %cond, i32 0, i32 -1
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ret i32 %sel
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}
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@ -144,73 +99,28 @@ define i32 @select_0_or_neg1_signext(i1 signext %cond) {
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; select Cond, -1, 0 --> sext (Cond)
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define i32 @select_neg1_or_0(i1 %cond) {
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; ISEL-LABEL: select_neg1_or_0:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: ori 3, 3, 65535
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; ISEL-NEXT: isel 3, 3, 4, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: select_neg1_or_0:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: ori 3, 3, 65535
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; NO_ISEL-NEXT: bclr 12, 1, 0
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; NO_ISEL-NEXT: # %bb.1:
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; NO_ISEL-NEXT: ori 3, 4, 0
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; NO_ISEL-NEXT: blr
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; ALL-LABEL: select_neg1_or_0:
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; ALL: # %bb.0:
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; ALL-NEXT: clrldi 3, 3, 63
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; ALL-NEXT: neg 3, 3
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; ALL-NEXT: blr
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%sel = select i1 %cond, i32 -1, i32 0
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ret i32 %sel
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}
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define i32 @select_neg1_or_0_zeroext(i1 zeroext %cond) {
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; ISEL-LABEL: select_neg1_or_0_zeroext:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: ori 3, 3, 65535
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; ISEL-NEXT: isel 3, 3, 4, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: select_neg1_or_0_zeroext:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: ori 3, 3, 65535
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; NO_ISEL-NEXT: bclr 12, 1, 0
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; NO_ISEL-NEXT: # %bb.1:
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; NO_ISEL-NEXT: ori 3, 4, 0
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; NO_ISEL-NEXT: blr
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; ALL-LABEL: select_neg1_or_0_zeroext:
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; ALL: # %bb.0:
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; ALL-NEXT: neg 3, 3
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; ALL-NEXT: blr
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%sel = select i1 %cond, i32 -1, i32 0
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ret i32 %sel
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}
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define i32 @select_neg1_or_0_signext(i1 signext %cond) {
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; ISEL-LABEL: select_neg1_or_0_signext:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: ori 3, 3, 65535
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; ISEL-NEXT: isel 3, 3, 4, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: select_neg1_or_0_signext:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: ori 3, 3, 65535
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; NO_ISEL-NEXT: bclr 12, 1, 0
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; NO_ISEL-NEXT: # %bb.1:
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; NO_ISEL-NEXT: ori 3, 4, 0
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; NO_ISEL-NEXT: blr
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; ALL-LABEL: select_neg1_or_0_signext:
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; ALL: # %bb.0:
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; ALL-NEXT: blr
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%sel = select i1 %cond, i32 -1, i32 0
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ret i32 %sel
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}
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@ -376,24 +286,21 @@ define i8 @sel_constants_add_constant(i1 %cond) {
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define i8 @sel_constants_sub_constant(i1 %cond) {
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; ISEL-LABEL: sel_constants_sub_constant:
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; ISEL: # %bb.0:
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; ISEL-NEXT: li 4, 0
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: oris 3, 4, 65535
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; ISEL-NEXT: li 4, 18
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; ISEL-NEXT: ori 3, 3, 65527
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; ISEL-NEXT: isel 3, 3, 4, 1
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; ISEL-NEXT: li 4, -9
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; ISEL-NEXT: li 3, 18
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; ISEL-NEXT: isel 3, 4, 3, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: sel_constants_sub_constant:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: li 4, 0
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: oris 3, 4, 65535
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; NO_ISEL-NEXT: li 4, 18
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; NO_ISEL-NEXT: ori 3, 3, 65527
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; NO_ISEL-NEXT: bclr 12, 1, 0
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; NO_ISEL-NEXT: # %bb.1:
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; NO_ISEL-NEXT: ori 3, 4, 0
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; NO_ISEL-NEXT: li 4, -9
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; NO_ISEL-NEXT: li 3, 18
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; NO_ISEL-NEXT: bc 12, 1, .LBB22_1
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; NO_ISEL-NEXT: blr
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; NO_ISEL-NEXT: .LBB22_1:
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; NO_ISEL-NEXT: addi 3, 4, 0
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; NO_ISEL-NEXT: blr
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%sel = select i1 %cond, i8 -4, i8 23
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%bo = sub i8 %sel, 5
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@ -427,24 +334,21 @@ define i8 @sel_constants_sub_constant_sel_constants(i1 %cond) {
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define i8 @sel_constants_mul_constant(i1 %cond) {
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; ISEL-LABEL: sel_constants_mul_constant:
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; ISEL: # %bb.0:
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; ISEL-NEXT: lis 4, 16383
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: ori 3, 4, 65531
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; ISEL-NEXT: li 4, 115
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; ISEL-NEXT: sldi 3, 3, 2
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; ISEL-NEXT: isel 3, 3, 4, 1
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; ISEL-NEXT: li 4, -20
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; ISEL-NEXT: li 3, 115
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; ISEL-NEXT: isel 3, 4, 3, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: sel_constants_mul_constant:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: lis 4, 16383
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: ori 3, 4, 65531
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; NO_ISEL-NEXT: li 4, 115
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; NO_ISEL-NEXT: sldi 3, 3, 2
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; NO_ISEL-NEXT: bclr 12, 1, 0
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; NO_ISEL-NEXT: # %bb.1:
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; NO_ISEL-NEXT: ori 3, 4, 0
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; NO_ISEL-NEXT: li 4, -20
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; NO_ISEL-NEXT: li 3, 115
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; NO_ISEL-NEXT: bc 12, 1, .LBB24_1
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; NO_ISEL-NEXT: blr
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; NO_ISEL-NEXT: .LBB24_1:
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; NO_ISEL-NEXT: addi 3, 4, 0
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; NO_ISEL-NEXT: blr
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%sel = select i1 %cond, i8 -4, i8 23
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%bo = mul i8 %sel, 5
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@ -544,24 +448,21 @@ define i8 @udiv_constant_sel_constants(i1 %cond) {
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define i8 @sel_constants_srem_constant(i1 %cond) {
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; ISEL-LABEL: sel_constants_srem_constant:
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; ISEL: # %bb.0:
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; ISEL-NEXT: lis 4, 16383
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; ISEL-NEXT: andi. 3, 3, 1
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; ISEL-NEXT: ori 3, 4, 65535
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; ISEL-NEXT: li 4, 3
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; ISEL-NEXT: sldi 3, 3, 2
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; ISEL-NEXT: isel 3, 3, 4, 1
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; ISEL-NEXT: li 4, -4
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; ISEL-NEXT: li 3, 3
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; ISEL-NEXT: isel 3, 4, 3, 1
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; ISEL-NEXT: blr
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;
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; NO_ISEL-LABEL: sel_constants_srem_constant:
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; NO_ISEL: # %bb.0:
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; NO_ISEL-NEXT: lis 4, 16383
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; NO_ISEL-NEXT: andi. 3, 3, 1
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; NO_ISEL-NEXT: ori 3, 4, 65535
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; NO_ISEL-NEXT: li 4, 3
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; NO_ISEL-NEXT: sldi 3, 3, 2
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; NO_ISEL-NEXT: bclr 12, 1, 0
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; NO_ISEL-NEXT: # %bb.1:
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; NO_ISEL-NEXT: ori 3, 4, 0
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; NO_ISEL-NEXT: li 4, -4
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; NO_ISEL-NEXT: li 3, 3
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; NO_ISEL-NEXT: bc 12, 1, .LBB29_1
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; NO_ISEL-NEXT: blr
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; NO_ISEL-NEXT: .LBB29_1:
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; NO_ISEL-NEXT: addi 3, 4, 0
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; NO_ISEL-NEXT: blr
|
||||
%sel = select i1 %cond, i8 -4, i8 23
|
||||
%bo = srem i8 %sel, 5
|
||||
|
|
@ -595,7 +496,7 @@ define i8 @srem_constant_sel_constants(i1 %cond) {
|
|||
define i8 @sel_constants_urem_constant(i1 %cond) {
|
||||
; ALL-LABEL: sel_constants_urem_constant:
|
||||
; ALL: # %bb.0:
|
||||
; ALL-NEXT: rlwinm 3, 3, 0, 31, 31
|
||||
; ALL-NEXT: clrldi 3, 3, 63
|
||||
; ALL-NEXT: subfic 3, 3, 3
|
||||
; ALL-NEXT: blr
|
||||
%sel = select i1 %cond, i8 -4, i8 23
|
||||
|
|
@ -630,7 +531,7 @@ define i8 @urem_constant_sel_constants(i1 %cond) {
|
|||
define i8 @sel_constants_and_constant(i1 %cond) {
|
||||
; ALL-LABEL: sel_constants_and_constant:
|
||||
; ALL: # %bb.0:
|
||||
; ALL-NEXT: rlwinm 3, 3, 0, 31, 31
|
||||
; ALL-NEXT: clrldi 3, 3, 63
|
||||
; ALL-NEXT: subfic 3, 3, 5
|
||||
; ALL-NEXT: blr
|
||||
%sel = select i1 %cond, i8 -4, i8 23
|
||||
|
|
@ -641,24 +542,21 @@ define i8 @sel_constants_and_constant(i1 %cond) {
|
|||
define i8 @sel_constants_or_constant(i1 %cond) {
|
||||
; ISEL-LABEL: sel_constants_or_constant:
|
||||
; ISEL: # %bb.0:
|
||||
; ISEL-NEXT: li 4, 0
|
||||
; ISEL-NEXT: andi. 3, 3, 1
|
||||
; ISEL-NEXT: oris 3, 4, 65535
|
||||
; ISEL-NEXT: li 4, 23
|
||||
; ISEL-NEXT: ori 3, 3, 65533
|
||||
; ISEL-NEXT: isel 3, 3, 4, 1
|
||||
; ISEL-NEXT: li 4, -3
|
||||
; ISEL-NEXT: li 3, 23
|
||||
; ISEL-NEXT: isel 3, 4, 3, 1
|
||||
; ISEL-NEXT: blr
|
||||
;
|
||||
; NO_ISEL-LABEL: sel_constants_or_constant:
|
||||
; NO_ISEL: # %bb.0:
|
||||
; NO_ISEL-NEXT: li 4, 0
|
||||
; NO_ISEL-NEXT: andi. 3, 3, 1
|
||||
; NO_ISEL-NEXT: oris 3, 4, 65535
|
||||
; NO_ISEL-NEXT: li 4, 23
|
||||
; NO_ISEL-NEXT: ori 3, 3, 65533
|
||||
; NO_ISEL-NEXT: bclr 12, 1, 0
|
||||
; NO_ISEL-NEXT: # %bb.1:
|
||||
; NO_ISEL-NEXT: ori 3, 4, 0
|
||||
; NO_ISEL-NEXT: li 4, -3
|
||||
; NO_ISEL-NEXT: li 3, 23
|
||||
; NO_ISEL-NEXT: bc 12, 1, .LBB34_1
|
||||
; NO_ISEL-NEXT: blr
|
||||
; NO_ISEL-NEXT: .LBB34_1:
|
||||
; NO_ISEL-NEXT: addi 3, 4, 0
|
||||
; NO_ISEL-NEXT: blr
|
||||
%sel = select i1 %cond, i8 -4, i8 23
|
||||
%bo = or i8 %sel, 5
|
||||
|
|
@ -668,24 +566,21 @@ define i8 @sel_constants_or_constant(i1 %cond) {
|
|||
define i8 @sel_constants_xor_constant(i1 %cond) {
|
||||
; ISEL-LABEL: sel_constants_xor_constant:
|
||||
; ISEL: # %bb.0:
|
||||
; ISEL-NEXT: li 4, 0
|
||||
; ISEL-NEXT: andi. 3, 3, 1
|
||||
; ISEL-NEXT: oris 3, 4, 65535
|
||||
; ISEL-NEXT: li 4, 18
|
||||
; ISEL-NEXT: ori 3, 3, 65529
|
||||
; ISEL-NEXT: isel 3, 3, 4, 1
|
||||
; ISEL-NEXT: li 4, -7
|
||||
; ISEL-NEXT: li 3, 18
|
||||
; ISEL-NEXT: isel 3, 4, 3, 1
|
||||
; ISEL-NEXT: blr
|
||||
;
|
||||
; NO_ISEL-LABEL: sel_constants_xor_constant:
|
||||
; NO_ISEL: # %bb.0:
|
||||
; NO_ISEL-NEXT: li 4, 0
|
||||
; NO_ISEL-NEXT: andi. 3, 3, 1
|
||||
; NO_ISEL-NEXT: oris 3, 4, 65535
|
||||
; NO_ISEL-NEXT: li 4, 18
|
||||
; NO_ISEL-NEXT: ori 3, 3, 65529
|
||||
; NO_ISEL-NEXT: bclr 12, 1, 0
|
||||
; NO_ISEL-NEXT: # %bb.1:
|
||||
; NO_ISEL-NEXT: ori 3, 4, 0
|
||||
; NO_ISEL-NEXT: li 4, -7
|
||||
; NO_ISEL-NEXT: li 3, 18
|
||||
; NO_ISEL-NEXT: bc 12, 1, .LBB35_1
|
||||
; NO_ISEL-NEXT: blr
|
||||
; NO_ISEL-NEXT: .LBB35_1:
|
||||
; NO_ISEL-NEXT: addi 3, 4, 0
|
||||
; NO_ISEL-NEXT: blr
|
||||
%sel = select i1 %cond, i8 -4, i8 23
|
||||
%bo = xor i8 %sel, 5
|
||||
|
|
@ -695,25 +590,17 @@ define i8 @sel_constants_xor_constant(i1 %cond) {
|
|||
define i8 @sel_constants_shl_constant(i1 %cond) {
|
||||
; ISEL-LABEL: sel_constants_shl_constant:
|
||||
; ISEL: # %bb.0:
|
||||
; ISEL-NEXT: lis 4, 2047
|
||||
; ISEL-NEXT: lis 5, 511
|
||||
; ISEL-NEXT: andi. 3, 3, 1
|
||||
; ISEL-NEXT: ori 3, 4, 65535
|
||||
; ISEL-NEXT: ori 4, 5, 65535
|
||||
; ISEL-NEXT: sldi 3, 3, 5
|
||||
; ISEL-NEXT: sldi 4, 4, 7
|
||||
; ISEL-NEXT: li 4, -128
|
||||
; ISEL-NEXT: li 3, -32
|
||||
; ISEL-NEXT: isel 3, 4, 3, 1
|
||||
; ISEL-NEXT: blr
|
||||
;
|
||||
; NO_ISEL-LABEL: sel_constants_shl_constant:
|
||||
; NO_ISEL: # %bb.0:
|
||||
; NO_ISEL-NEXT: lis 4, 2047
|
||||
; NO_ISEL-NEXT: lis 5, 511
|
||||
; NO_ISEL-NEXT: andi. 3, 3, 1
|
||||
; NO_ISEL-NEXT: ori 3, 4, 65535
|
||||
; NO_ISEL-NEXT: ori 4, 5, 65535
|
||||
; NO_ISEL-NEXT: sldi 3, 3, 5
|
||||
; NO_ISEL-NEXT: sldi 4, 4, 7
|
||||
; NO_ISEL-NEXT: li 4, -128
|
||||
; NO_ISEL-NEXT: li 3, -32
|
||||
; NO_ISEL-NEXT: bc 12, 1, .LBB36_1
|
||||
; NO_ISEL-NEXT: blr
|
||||
; NO_ISEL-NEXT: .LBB36_1:
|
||||
|
|
|
|||
|
|
@ -908,22 +908,20 @@ define zeroext i8 @test_extractelement_v2i1(<2 x i64> %a, <2 x i64> %b) {
|
|||
; KNL-NEXT: ## kill: def $xmm1 killed $xmm1 def $zmm1
|
||||
; KNL-NEXT: ## kill: def $xmm0 killed $xmm0 def $zmm0
|
||||
; KNL-NEXT: vpcmpnleuq %zmm1, %zmm0, %k0
|
||||
; KNL-NEXT: kmovw %k0, %eax
|
||||
; KNL-NEXT: andb $1, %al
|
||||
; KNL-NEXT: movb $4, %cl
|
||||
; KNL-NEXT: subb %al, %cl
|
||||
; KNL-NEXT: movzbl %cl, %eax
|
||||
; KNL-NEXT: kmovw %k0, %ecx
|
||||
; KNL-NEXT: andl $1, %ecx
|
||||
; KNL-NEXT: movl $4, %eax
|
||||
; KNL-NEXT: subl %ecx, %eax
|
||||
; KNL-NEXT: vzeroupper
|
||||
; KNL-NEXT: retq
|
||||
;
|
||||
; SKX-LABEL: test_extractelement_v2i1:
|
||||
; SKX: ## %bb.0:
|
||||
; SKX-NEXT: vpcmpnleuq %xmm1, %xmm0, %k0
|
||||
; SKX-NEXT: kmovd %k0, %eax
|
||||
; SKX-NEXT: andb $1, %al
|
||||
; SKX-NEXT: movb $4, %cl
|
||||
; SKX-NEXT: subb %al, %cl
|
||||
; SKX-NEXT: movzbl %cl, %eax
|
||||
; SKX-NEXT: kmovd %k0, %ecx
|
||||
; SKX-NEXT: andl $1, %ecx
|
||||
; SKX-NEXT: movl $4, %eax
|
||||
; SKX-NEXT: subl %ecx, %eax
|
||||
; SKX-NEXT: retq
|
||||
%t1 = icmp ugt <2 x i64> %a, %b
|
||||
%t2 = extractelement <2 x i1> %t1, i32 0
|
||||
|
|
@ -1024,11 +1022,10 @@ define zeroext i8 @test_extractelement_v64i1(<64 x i8> %a, <64 x i8> %b) {
|
|||
; KNL-NEXT: vpmovsxbd %xmm0, %zmm0
|
||||
; KNL-NEXT: vptestmd %zmm0, %zmm0, %k0
|
||||
; KNL-NEXT: kshiftrw $15, %k0, %k0
|
||||
; KNL-NEXT: kmovw %k0, %eax
|
||||
; KNL-NEXT: andb $1, %al
|
||||
; KNL-NEXT: movb $4, %cl
|
||||
; KNL-NEXT: subb %al, %cl
|
||||
; KNL-NEXT: movzbl %cl, %eax
|
||||
; KNL-NEXT: kmovw %k0, %ecx
|
||||
; KNL-NEXT: andl $1, %ecx
|
||||
; KNL-NEXT: movl $4, %eax
|
||||
; KNL-NEXT: subl %ecx, %eax
|
||||
; KNL-NEXT: vzeroupper
|
||||
; KNL-NEXT: retq
|
||||
;
|
||||
|
|
@ -1036,11 +1033,10 @@ define zeroext i8 @test_extractelement_v64i1(<64 x i8> %a, <64 x i8> %b) {
|
|||
; SKX: ## %bb.0:
|
||||
; SKX-NEXT: vpcmpnleub %zmm1, %zmm0, %k0
|
||||
; SKX-NEXT: kshiftrq $63, %k0, %k0
|
||||
; SKX-NEXT: kmovd %k0, %eax
|
||||
; SKX-NEXT: andb $1, %al
|
||||
; SKX-NEXT: movb $4, %cl
|
||||
; SKX-NEXT: subb %al, %cl
|
||||
; SKX-NEXT: movzbl %cl, %eax
|
||||
; SKX-NEXT: kmovd %k0, %ecx
|
||||
; SKX-NEXT: andl $1, %ecx
|
||||
; SKX-NEXT: movl $4, %eax
|
||||
; SKX-NEXT: subl %ecx, %eax
|
||||
; SKX-NEXT: vzeroupper
|
||||
; SKX-NEXT: retq
|
||||
%t1 = icmp ugt <64 x i8> %a, %b
|
||||
|
|
|
|||
|
|
@ -15,12 +15,11 @@ define i16 @cmov_zpromotion_8_to_16(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_zpromotion_8_to_16:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movb $117, %al
|
||||
; NO_CMOV-NEXT: movl $117, %eax
|
||||
; NO_CMOV-NEXT: jne .LBB0_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: movb $-19, %al
|
||||
; NO_CMOV-NEXT: movl $237, %eax
|
||||
; NO_CMOV-NEXT: .LBB0_2:
|
||||
; NO_CMOV-NEXT: movzbl %al, %eax
|
||||
; NO_CMOV-NEXT: # kill: def $ax killed $ax killed $eax
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i8 117, i8 -19
|
||||
|
|
@ -40,12 +39,11 @@ define i32 @cmov_zpromotion_8_to_32(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_zpromotion_8_to_32:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movb $126, %al
|
||||
; NO_CMOV-NEXT: movl $126, %eax
|
||||
; NO_CMOV-NEXT: jne .LBB1_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: movb $-1, %al
|
||||
; NO_CMOV-NEXT: movl $255, %eax
|
||||
; NO_CMOV-NEXT: .LBB1_2:
|
||||
; NO_CMOV-NEXT: movzbl %al, %eax
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i8 12414, i8 -1
|
||||
%ret = zext i8 %t0 to i32
|
||||
|
|
@ -58,18 +56,17 @@ define i64 @cmov_zpromotion_8_to_64(i1 %c) {
|
|||
; CMOV-NEXT: testb $1, %dil
|
||||
; CMOV-NEXT: movl $126, %ecx
|
||||
; CMOV-NEXT: movl $255, %eax
|
||||
; CMOV-NEXT: cmovnel %ecx, %eax
|
||||
; CMOV-NEXT: cmovneq %rcx, %rax
|
||||
; CMOV-NEXT: retq
|
||||
;
|
||||
; NO_CMOV-LABEL: cmov_zpromotion_8_to_64:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movb $126, %al
|
||||
; NO_CMOV-NEXT: movl $126, %eax
|
||||
; NO_CMOV-NEXT: jne .LBB2_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: movb $-1, %al
|
||||
; NO_CMOV-NEXT: movl $255, %eax
|
||||
; NO_CMOV-NEXT: .LBB2_2:
|
||||
; NO_CMOV-NEXT: movzbl %al, %eax
|
||||
; NO_CMOV-NEXT: xorl %edx, %edx
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i8 12414, i8 -1
|
||||
|
|
@ -106,7 +103,7 @@ define i64 @cmov_zpromotion_16_to_64(i1 %c) {
|
|||
; CMOV-NEXT: testb $1, %dil
|
||||
; CMOV-NEXT: movl $12414, %ecx # imm = 0x307E
|
||||
; CMOV-NEXT: movl $65535, %eax # imm = 0xFFFF
|
||||
; CMOV-NEXT: cmovnel %ecx, %eax
|
||||
; CMOV-NEXT: cmovneq %rcx, %rax
|
||||
; CMOV-NEXT: retq
|
||||
;
|
||||
; NO_CMOV-LABEL: cmov_zpromotion_16_to_64:
|
||||
|
|
@ -161,12 +158,11 @@ define i16 @cmov_spromotion_8_to_16(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_spromotion_8_to_16:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movb $117, %al
|
||||
; NO_CMOV-NEXT: movl $117, %eax
|
||||
; NO_CMOV-NEXT: jne .LBB6_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: movb $-19, %al
|
||||
; NO_CMOV-NEXT: movl $65517, %eax # imm = 0xFFED
|
||||
; NO_CMOV-NEXT: .LBB6_2:
|
||||
; NO_CMOV-NEXT: movsbl %al, %eax
|
||||
; NO_CMOV-NEXT: # kill: def $ax killed $ax killed $eax
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i8 117, i8 -19
|
||||
|
|
@ -186,12 +182,11 @@ define i32 @cmov_spromotion_8_to_32(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_spromotion_8_to_32:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movb $126, %al
|
||||
; NO_CMOV-NEXT: movl $126, %eax
|
||||
; NO_CMOV-NEXT: jne .LBB7_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: movb $-1, %al
|
||||
; NO_CMOV-NEXT: movl $-1, %eax
|
||||
; NO_CMOV-NEXT: .LBB7_2:
|
||||
; NO_CMOV-NEXT: movsbl %al, %eax
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i8 12414, i8 -1
|
||||
%ret = sext i8 %t0 to i32
|
||||
|
|
@ -210,14 +205,14 @@ define i64 @cmov_spromotion_8_to_64(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_spromotion_8_to_64:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movb $126, %al
|
||||
; NO_CMOV-NEXT: jne .LBB8_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: movb $-1, %al
|
||||
; NO_CMOV-NEXT: .LBB8_2:
|
||||
; NO_CMOV-NEXT: movsbl %al, %eax
|
||||
; NO_CMOV-NEXT: movl %eax, %edx
|
||||
; NO_CMOV-NEXT: sarl $31, %edx
|
||||
; NO_CMOV-NEXT: jne .LBB8_1
|
||||
; NO_CMOV-NEXT: # %bb.2:
|
||||
; NO_CMOV-NEXT: movl $-1, %eax
|
||||
; NO_CMOV-NEXT: movl $-1, %edx
|
||||
; NO_CMOV-NEXT: retl
|
||||
; NO_CMOV-NEXT: .LBB8_1:
|
||||
; NO_CMOV-NEXT: xorl %edx, %edx
|
||||
; NO_CMOV-NEXT: movl $126, %eax
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i8 12414, i8 -1
|
||||
%ret = sext i8 %t0 to i64
|
||||
|
|
@ -259,13 +254,14 @@ define i64 @cmov_spromotion_16_to_64(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_spromotion_16_to_64:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
|
||||
; NO_CMOV-NEXT: jne .LBB10_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: jne .LBB10_1
|
||||
; NO_CMOV-NEXT: # %bb.2:
|
||||
; NO_CMOV-NEXT: movl $-1, %eax
|
||||
; NO_CMOV-NEXT: .LBB10_2:
|
||||
; NO_CMOV-NEXT: movl %eax, %edx
|
||||
; NO_CMOV-NEXT: sarl $31, %edx
|
||||
; NO_CMOV-NEXT: movl $-1, %edx
|
||||
; NO_CMOV-NEXT: retl
|
||||
; NO_CMOV-NEXT: .LBB10_1:
|
||||
; NO_CMOV-NEXT: xorl %edx, %edx
|
||||
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i16 12414, i16 -1
|
||||
%ret = sext i16 %t0 to i64
|
||||
|
|
@ -284,13 +280,14 @@ define i64 @cmov_spromotion_32_to_64(i1 %c) {
|
|||
; NO_CMOV-LABEL: cmov_spromotion_32_to_64:
|
||||
; NO_CMOV: # %bb.0:
|
||||
; NO_CMOV-NEXT: testb $1, {{[0-9]+}}(%esp)
|
||||
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
|
||||
; NO_CMOV-NEXT: jne .LBB11_2
|
||||
; NO_CMOV-NEXT: # %bb.1:
|
||||
; NO_CMOV-NEXT: jne .LBB11_1
|
||||
; NO_CMOV-NEXT: # %bb.2:
|
||||
; NO_CMOV-NEXT: movl $-1, %eax
|
||||
; NO_CMOV-NEXT: .LBB11_2:
|
||||
; NO_CMOV-NEXT: movl %eax, %edx
|
||||
; NO_CMOV-NEXT: sarl $31, %edx
|
||||
; NO_CMOV-NEXT: movl $-1, %edx
|
||||
; NO_CMOV-NEXT: retl
|
||||
; NO_CMOV-NEXT: .LBB11_1:
|
||||
; NO_CMOV-NEXT: xorl %edx, %edx
|
||||
; NO_CMOV-NEXT: movl $12414, %eax # imm = 0x307E
|
||||
; NO_CMOV-NEXT: retl
|
||||
%t0 = select i1 %c, i32 12414, i32 -1
|
||||
%ret = sext i32 %t0 to i64
|
||||
|
|
|
|||
|
|
@ -55,9 +55,8 @@ define i32 @test2() nounwind {
|
|||
; GENERIC-NEXT: callq _return_false
|
||||
; GENERIC-NEXT: xorl %ecx, %ecx
|
||||
; GENERIC-NEXT: testb $1, %al
|
||||
; GENERIC-NEXT: movl $-480, %eax ## imm = 0xFE20
|
||||
; GENERIC-NEXT: movl $-3840, %eax ## imm = 0xF100
|
||||
; GENERIC-NEXT: cmovnel %ecx, %eax
|
||||
; GENERIC-NEXT: shll $3, %eax
|
||||
; GENERIC-NEXT: cmpl $32768, %eax ## imm = 0x8000
|
||||
; GENERIC-NEXT: jge LBB1_1
|
||||
; GENERIC-NEXT: ## %bb.2: ## %bb91
|
||||
|
|
@ -72,10 +71,9 @@ define i32 @test2() nounwind {
|
|||
; ATOM-NEXT: pushq %rax
|
||||
; ATOM-NEXT: callq _return_false
|
||||
; ATOM-NEXT: xorl %ecx, %ecx
|
||||
; ATOM-NEXT: movl $-480, %edx ## imm = 0xFE20
|
||||
; ATOM-NEXT: movl $-3840, %edx ## imm = 0xF100
|
||||
; ATOM-NEXT: testb $1, %al
|
||||
; ATOM-NEXT: cmovnel %ecx, %edx
|
||||
; ATOM-NEXT: shll $3, %edx
|
||||
; ATOM-NEXT: cmpl $32768, %edx ## imm = 0x8000
|
||||
; ATOM-NEXT: jge LBB1_1
|
||||
; ATOM-NEXT: ## %bb.2: ## %bb91
|
||||
|
|
@ -91,9 +89,8 @@ define i32 @test2() nounwind {
|
|||
; ATHLON-NEXT: calll _return_false
|
||||
; ATHLON-NEXT: xorl %ecx, %ecx
|
||||
; ATHLON-NEXT: testb $1, %al
|
||||
; ATHLON-NEXT: movl $-480, %eax ## imm = 0xFE20
|
||||
; ATHLON-NEXT: movl $-3840, %eax ## imm = 0xF100
|
||||
; ATHLON-NEXT: cmovnel %ecx, %eax
|
||||
; ATHLON-NEXT: shll $3, %eax
|
||||
; ATHLON-NEXT: cmpl $32768, %eax ## imm = 0x8000
|
||||
; ATHLON-NEXT: jge LBB1_1
|
||||
; ATHLON-NEXT: ## %bb.2: ## %bb91
|
||||
|
|
@ -110,9 +107,8 @@ define i32 @test2() nounwind {
|
|||
; MCU-NEXT: testb $1, %al
|
||||
; MCU-NEXT: jne .LBB1_2
|
||||
; MCU-NEXT: # %bb.1: # %entry
|
||||
; MCU-NEXT: movl $-480, %ecx # imm = 0xFE20
|
||||
; MCU-NEXT: movl $-3840, %ecx # imm = 0xF100
|
||||
; MCU-NEXT: .LBB1_2: # %entry
|
||||
; MCU-NEXT: shll $3, %ecx
|
||||
; MCU-NEXT: cmpl $32768, %ecx # imm = 0x8000
|
||||
; MCU-NEXT: jge .LBB1_3
|
||||
; MCU-NEXT: # %bb.4: # %bb91
|
||||
|
|
|
|||
Loading…
Reference in New Issue