[llvm] r367750 - Emit diagnostic if an inline asm constraint requires an immediate

Hans Wennborg via llvm-commits llvm-commits at lists.llvm.org
Fri Aug 9 02:48:37 PDT 2019


Merged to release_90 in r368421.

On Sat, Aug 3, 2019 at 7:51 AM Bill Wendling via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
>
> Author: void
> Date: Fri Aug  2 22:52:47 2019
> New Revision: 367750
>
> URL: http://llvm.org/viewvc/llvm-project?rev=367750&view=rev
> Log:
> Emit diagnostic if an inline asm constraint requires an immediate
>
> Summary:
> An inline asm call can result in an immediate after inlining. Therefore emit a
> diagnostic here if constraint requires an immediate but one isn't supplied.
>
> Reviewers: joerg, mgorny, efriedma, rsmith
>
> Reviewed By: joerg
>
> Subscribers: asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, s.egerton, MaskRay, jyknight, dylanmckay, javed.absar, fedor.sergeev, jrtc27, Jim, krytarowski, eraman, llvm-commits
>
> Tags: #llvm
>
> Differential Revision: https://reviews.llvm.org/D60942
>
> Added:
>     llvm/trunk/test/CodeGen/X86/inline-asm-e-constraint.ll
>     llvm/trunk/test/CodeGen/X86/inline-asm-imm-out-of-range.ll
>     llvm/trunk/test/CodeGen/X86/inline-asm-n-constraint.ll
> Modified:
>     llvm/trunk/include/llvm/CodeGen/TargetLowering.h
>     llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
>     llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp
>     llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp
>     llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
>     llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp
>     llvm/trunk/lib/Target/RISCV/RISCVISelLowering.cpp
>     llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp
>     llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
>     llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
>     llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-I.ll
>     llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-J.ll
>     llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-K.ll
>     llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-L.ll
>     llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-M.ll
>     llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-N.ll
>     llvm/trunk/test/CodeGen/RISCV/inline-asm-invalid.ll
>     llvm/trunk/test/CodeGen/X86/inline-asm-bad-constraint-n.ll
>
> Modified: llvm/trunk/include/llvm/CodeGen/TargetLowering.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/TargetLowering.h?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/include/llvm/CodeGen/TargetLowering.h (original)
> +++ llvm/trunk/include/llvm/CodeGen/TargetLowering.h Fri Aug  2 22:52:47 2019
> @@ -3742,6 +3742,7 @@ public:
>      C_Register,            // Constraint represents specific register(s).
>      C_RegisterClass,       // Constraint represents any of register(s) in class.
>      C_Memory,              // Memory constraint.
> +    C_Immediate,           // Requires an immediate.
>      C_Other,               // Something else.
>      C_Unknown              // Unsupported constraint.
>    };
>
> Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
> +++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Fri Aug  2 22:52:47 2019
> @@ -8049,6 +8049,14 @@ void SelectionDAGBuilder::visitInlineAsm
>      // Compute the constraint code and ConstraintType to use.
>      TLI.ComputeConstraintToUse(T, SDValue());
>
> +    if (T.ConstraintType == TargetLowering::C_Immediate &&
> +        OpInfo.CallOperand && !isa<ConstantSDNode>(OpInfo.CallOperand))
> +      // We've delayed emitting a diagnostic like the "n" constraint because
> +      // inlining could cause an integer showing up.
> +      return emitInlineAsmError(
> +          CS, "constraint '" + Twine(T.ConstraintCode) + "' expects an "
> +                  "integer constant expression");
> +
>      ExtraInfo.update(T);
>    }
>
> @@ -8133,7 +8141,8 @@ void SelectionDAGBuilder::visitInlineAsm
>      switch (OpInfo.Type) {
>      case InlineAsm::isOutput:
>        if (OpInfo.ConstraintType == TargetLowering::C_Memory ||
> -          (OpInfo.ConstraintType == TargetLowering::C_Other &&
> +          ((OpInfo.ConstraintType == TargetLowering::C_Immediate ||
> +            OpInfo.ConstraintType == TargetLowering::C_Other) &&
>             OpInfo.isIndirect)) {
>          unsigned ConstraintID =
>              TLI.getInlineAsmMemConstraint(OpInfo.ConstraintCode);
> @@ -8147,13 +8156,14 @@ void SelectionDAGBuilder::visitInlineAsm
>                                                          MVT::i32));
>          AsmNodeOperands.push_back(OpInfo.CallOperand);
>          break;
> -      } else if ((OpInfo.ConstraintType == TargetLowering::C_Other &&
> +      } else if (((OpInfo.ConstraintType == TargetLowering::C_Immediate ||
> +                   OpInfo.ConstraintType == TargetLowering::C_Other) &&
>                    !OpInfo.isIndirect) ||
>                   OpInfo.ConstraintType == TargetLowering::C_Register ||
>                   OpInfo.ConstraintType == TargetLowering::C_RegisterClass) {
>          // Otherwise, this outputs to a register (directly for C_Register /
> -        // C_RegisterClass, and a target-defined fashion for C_Other). Find a
> -        // register that we can use.
> +        // C_RegisterClass, and a target-defined fashion for
> +        // C_Immediate/C_Other). Find a register that we can use.
>          if (OpInfo.AssignedRegs.Regs.empty()) {
>            emitInlineAsmError(
>                CS, "couldn't allocate output register for constraint '" +
> @@ -8233,15 +8243,24 @@ void SelectionDAGBuilder::visitInlineAsm
>        }
>
>        // Treat indirect 'X' constraint as memory.
> -      if (OpInfo.ConstraintType == TargetLowering::C_Other &&
> +      if ((OpInfo.ConstraintType == TargetLowering::C_Immediate ||
> +           OpInfo.ConstraintType == TargetLowering::C_Other) &&
>            OpInfo.isIndirect)
>          OpInfo.ConstraintType = TargetLowering::C_Memory;
>
> -      if (OpInfo.ConstraintType == TargetLowering::C_Other) {
> +      if (OpInfo.ConstraintType == TargetLowering::C_Immediate ||
> +          OpInfo.ConstraintType == TargetLowering::C_Other) {
>          std::vector<SDValue> Ops;
>          TLI.LowerAsmOperandForConstraint(InOperandVal, OpInfo.ConstraintCode,
>                                            Ops, DAG);
>          if (Ops.empty()) {
> +          if (OpInfo.ConstraintType == TargetLowering::C_Immediate)
> +            if (isa<ConstantSDNode>(InOperandVal)) {
> +              emitInlineAsmError(CS, "value out of range for constraint '" +
> +                                 Twine(OpInfo.ConstraintCode) + "'");
> +              return;
> +            }
> +
>            emitInlineAsmError(CS, "invalid operand for inline asm constraint '" +
>                                       Twine(OpInfo.ConstraintCode) + "'");
>            return;
> @@ -8278,7 +8297,8 @@ void SelectionDAGBuilder::visitInlineAsm
>        }
>
>        assert((OpInfo.ConstraintType == TargetLowering::C_RegisterClass ||
> -              OpInfo.ConstraintType == TargetLowering::C_Register) &&
> +              OpInfo.ConstraintType == TargetLowering::C_Register ||
> +              OpInfo.ConstraintType == TargetLowering::C_Immediate) &&
>               "Unknown constraint type!");
>
>        // TODO: Support this.
> @@ -8384,6 +8404,7 @@ void SelectionDAGBuilder::visitInlineAsm
>          Val = OpInfo.AssignedRegs.getCopyFromRegs(
>              DAG, FuncInfo, getCurSDLoc(), Chain, &Flag, CS.getInstruction());
>          break;
> +      case TargetLowering::C_Immediate:
>        case TargetLowering::C_Other:
>          Val = TLI.LowerAsmOutputForConstraint(Chain, Flag, getCurSDLoc(),
>                                                OpInfo, DAG);
>
> Modified: llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp (original)
> +++ llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -3873,15 +3873,17 @@ TargetLowering::getConstraintType(String
>    if (S == 1) {
>      switch (Constraint[0]) {
>      default: break;
> -    case 'r': return C_RegisterClass;
> +    case 'r':
> +      return C_RegisterClass;
>      case 'm': // memory
>      case 'o': // offsetable
>      case 'V': // not offsetable
>        return C_Memory;
> -    case 'i': // Simple Integer or Relocatable Constant
>      case 'n': // Simple Integer
>      case 'E': // Floating Point Constant
>      case 'F': // Floating Point Constant
> +      return C_Immediate;
> +    case 'i': // Simple Integer or Relocatable Constant
>      case 's': // Relocatable Constant
>      case 'p': // Address.
>      case 'X': // Allow ANY value.
> @@ -4256,6 +4258,7 @@ TargetLowering::ParseConstraints(const D
>  /// Return an integer indicating how general CT is.
>  static unsigned getConstraintGenerality(TargetLowering::ConstraintType CT) {
>    switch (CT) {
> +  case TargetLowering::C_Immediate:
>    case TargetLowering::C_Other:
>    case TargetLowering::C_Unknown:
>      return 0;
> @@ -4375,11 +4378,12 @@ static void ChooseConstraint(TargetLower
>      TargetLowering::ConstraintType CType =
>        TLI.getConstraintType(OpInfo.Codes[i]);
>
> -    // If this is an 'other' constraint, see if the operand is valid for it.
> -    // For example, on X86 we might have an 'rI' constraint.  If the operand
> -    // is an integer in the range [0..31] we want to use I (saving a load
> -    // of a register), otherwise we must use 'r'.
> -    if (CType == TargetLowering::C_Other && Op.getNode()) {
> +    // If this is an 'other' or 'immediate' constraint, see if the operand is
> +    // valid for it. For example, on X86 we might have an 'rI' constraint. If
> +    // the operand is an integer in the range [0..31] we want to use I (saving a
> +    // load of a register), otherwise we must use 'r'.
> +    if ((CType == TargetLowering::C_Other ||
> +         CType == TargetLowering::C_Immediate) && Op.getNode()) {
>        assert(OpInfo.Codes[i].size() == 1 &&
>               "Unhandled multi-letter 'other' constraint");
>        std::vector<SDValue> ResultOps;
>
> Modified: llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -5686,8 +5686,6 @@ AArch64TargetLowering::getConstraintType
>      switch (Constraint[0]) {
>      default:
>        break;
> -    case 'z':
> -      return C_Other;
>      case 'x':
>      case 'w':
>        return C_RegisterClass;
> @@ -5695,6 +5693,16 @@ AArch64TargetLowering::getConstraintType
>      // currently handle addresses it is the same as 'r'.
>      case 'Q':
>        return C_Memory;
> +    case 'I':
> +    case 'J':
> +    case 'K':
> +    case 'L':
> +    case 'M':
> +    case 'N':
> +    case 'Y':
> +    case 'Z':
> +      return C_Immediate;
> +    case 'z':
>      case 'S': // A symbolic address
>        return C_Other;
>      }
>
> Modified: llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -14976,7 +14976,8 @@ const char *ARMTargetLowering::LowerXCon
>  /// constraint it is for this target.
>  ARMTargetLowering::ConstraintType
>  ARMTargetLowering::getConstraintType(StringRef Constraint) const {
> -  if (Constraint.size() == 1) {
> +  unsigned S = Constraint.size();
> +  if (S == 1) {
>      switch (Constraint[0]) {
>      default:  break;
>      case 'l': return C_RegisterClass;
> @@ -14984,12 +14985,12 @@ ARMTargetLowering::getConstraintType(Str
>      case 'h': return C_RegisterClass;
>      case 'x': return C_RegisterClass;
>      case 't': return C_RegisterClass;
> -    case 'j': return C_Other; // Constant for movw.
> -      // An address with a single base register. Due to the way we
> -      // currently handle addresses it is the same as an 'r' memory constraint.
> +    case 'j': return C_Immediate; // Constant for movw.
> +    // An address with a single base register. Due to the way we
> +    // currently handle addresses it is the same as an 'r' memory constraint.
>      case 'Q': return C_Memory;
>      }
> -  } else if (Constraint.size() == 2) {
> +  } else if (S == 2) {
>      switch (Constraint[0]) {
>      default: break;
>      case 'T': return C_RegisterClass;
>
> Modified: llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -1689,6 +1689,8 @@ AVRTargetLowering::getConstraintType(Str
>    if (Constraint.size() == 1) {
>      // See http://www.nongnu.org/avr-libc/user-manual/inline_asm.html
>      switch (Constraint[0]) {
> +    default:
> +      break;
>      case 'a': // Simple upper registers
>      case 'b': // Base pointer registers pairs
>      case 'd': // Upper register
> @@ -1715,9 +1717,7 @@ AVRTargetLowering::getConstraintType(Str
>      case 'O': // Integer constant (Range: 8, 16, 24)
>      case 'P': // Integer constant (Range: 1)
>      case 'R': // Integer constant (Range: -6 to 5)x
> -      return C_Other;
> -    default:
> -      break;
> +      return C_Immediate;
>      }
>    }
>
>
> Modified: llvm/trunk/lib/Target/RISCV/RISCVISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/RISCV/RISCVISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/RISCV/RISCVISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/RISCV/RISCVISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -2407,6 +2407,10 @@ RISCVTargetLowering::getConstraintType(S
>        break;
>      case 'f':
>        return C_RegisterClass;
> +    case 'I':
> +    case 'J':
> +    case 'K':
> +      return C_Immediate;
>      }
>    }
>    return TargetLowering::getConstraintType(Constraint);
>
> Modified: llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/Sparc/SparcISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -3183,7 +3183,7 @@ SparcTargetLowering::getConstraintType(S
>      case 'e':
>        return C_RegisterClass;
>      case 'I': // SIMM13
> -      return C_Other;
> +      return C_Immediate;
>      }
>    }
>
>
> Modified: llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/SystemZ/SystemZISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -956,7 +956,7 @@ SystemZTargetLowering::getConstraintType
>      case 'K': // Signed 16-bit constant
>      case 'L': // Signed 20-bit displacement (on all targets we support)
>      case 'M': // 0x7fffffff
> -      return C_Other;
> +      return C_Immediate;
>
>      default:
>        break;
>
> Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
> +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Fri Aug  2 22:52:47 2019
> @@ -44875,10 +44875,11 @@ X86TargetLowering::getConstraintType(Str
>      case 'I':
>      case 'J':
>      case 'K':
> -    case 'L':
> -    case 'M':
>      case 'N':
>      case 'G':
> +    case 'L':
> +    case 'M':
> +      return C_Immediate;
>      case 'C':
>      case 'e':
>      case 'Z':
>
> Modified: llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-I.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-I.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-I.ll (original)
> +++ llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-I.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>  ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
>
>  ; Check for at least one invalid constant.
> -; CHECK-ERRORS:        error: invalid operand for inline asm constraint 'I'
> +; CHECK-ERRORS:        error: value out of range for constraint 'I'
>
>  define i32 @constraint_I(i32 %i, i32 %j) nounwind ssp {
>  entry:
>
> Modified: llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-J.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-J.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-J.ll (original)
> +++ llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-J.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>  ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
>
>  ; Check for at least one invalid constant.
> -; CHECK-ERRORS:        error: invalid operand for inline asm constraint 'J'
> +; CHECK-ERRORS:        error: value out of range for constraint 'J'
>
>  define i32 @constraint_J(i32 %i, i32 %j) nounwind ssp {
>  entry:
>
> Modified: llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-K.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-K.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-K.ll (original)
> +++ llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-K.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>  ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
>
>  ; Check for at least one invalid constant.
> -; CHECK-ERRORS:        error: invalid operand for inline asm constraint 'K'
> +; CHECK-ERRORS:        error: value out of range for constraint 'K'
>
>  define i32 @constraint_K(i32 %i, i32 %j) nounwind {
>  entry:
>
> Modified: llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-L.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-L.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-L.ll (original)
> +++ llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-L.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>  ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
>
>  ; Check for at least one invalid constant.
> -; CHECK-ERRORS:        error: invalid operand for inline asm constraint 'L'
> +; CHECK-ERRORS:        error: value out of range for constraint 'L'
>
>  define i32 @constraint_L(i32 %i, i32 %j) nounwind {
>  entry:
>
> Modified: llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-M.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-M.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-M.ll (original)
> +++ llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-M.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>  ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
>
>  ; Check for at least one invalid constant.
> -; CHECK-ERRORS:        error: invalid operand for inline asm constraint 'M'
> +; CHECK-ERRORS:        error: value out of range for constraint 'M'
>
>  define i32 @constraint_M(i32 %i, i32 %j) nounwind {
>  entry:
>
> Modified: llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-N.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-N.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-N.ll (original)
> +++ llvm/trunk/test/CodeGen/AArch64/arm64-inline-asm-error-N.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>  ; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s
>
>  ; Check for at least one invalid constant.
> -; CHECK-ERRORS:        error: invalid operand for inline asm constraint 'N'
> +; CHECK-ERRORS:        error: value out of range for constraint 'N'
>
>  define i32 @constraint_N(i32 %i, i32 %j) nounwind {
>  entry:
>
> Modified: llvm/trunk/test/CodeGen/RISCV/inline-asm-invalid.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/RISCV/inline-asm-invalid.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/RISCV/inline-asm-invalid.ll (original)
> +++ llvm/trunk/test/CodeGen/RISCV/inline-asm-invalid.ll Fri Aug  2 22:52:47 2019
> @@ -2,23 +2,23 @@
>  ; RUN: not llc -mtriple=riscv64 < %s 2>&1 | FileCheck %s
>
>  define void @constraint_I() {
> -; CHECK: error: invalid operand for inline asm constraint 'I'
> +; CHECK: error: value out of range for constraint 'I'
>    tail call void asm sideeffect "addi a0, a0, $0", "I"(i32 2048)
> -; CHECK: error: invalid operand for inline asm constraint 'I'
> +; CHECK: error: value out of range for constraint 'I'
>    tail call void asm sideeffect "addi a0, a0, $0", "I"(i32 -2049)
>    ret void
>  }
>
>  define void @constraint_J() {
> -; CHECK: error: invalid operand for inline asm constraint 'J'
> +; CHECK: error: value out of range for constraint 'J'
>    tail call void asm sideeffect "addi a0, a0, $0", "J"(i32 1)
>    ret void
>  }
>
>  define void @constraint_K() {
> -; CHECK: error: invalid operand for inline asm constraint 'K'
> +; CHECK: error: value out of range for constraint 'K'
>    tail call void asm sideeffect "csrwi mstatus, $0", "K"(i32 32)
> -; CHECK: error: invalid operand for inline asm constraint 'K'
> +; CHECK: error: value out of range for constraint 'K'
>    tail call void asm sideeffect "csrwi mstatus, $0", "K"(i32 -1)
>    ret void
>  }
>
> Modified: llvm/trunk/test/CodeGen/X86/inline-asm-bad-constraint-n.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/inline-asm-bad-constraint-n.ll?rev=367750&r1=367749&r2=367750&view=diff
> ==============================================================================
> --- llvm/trunk/test/CodeGen/X86/inline-asm-bad-constraint-n.ll (original)
> +++ llvm/trunk/test/CodeGen/X86/inline-asm-bad-constraint-n.ll Fri Aug  2 22:52:47 2019
> @@ -2,7 +2,7 @@
>
>  @x = global i32 0, align 4
>
> -;CHECK:        error: invalid operand for inline asm constraint 'n'
> +; CHECK: error: constraint 'n' expects an integer constant expression
>  define void @foo() {
>    %a = getelementptr i32, i32* @x, i32 1
>    call void asm sideeffect "foo $0", "n"(i32* %a) nounwind
>
> Added: llvm/trunk/test/CodeGen/X86/inline-asm-e-constraint.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/inline-asm-e-constraint.ll?rev=367750&view=auto
> ==============================================================================
> --- llvm/trunk/test/CodeGen/X86/inline-asm-e-constraint.ll (added)
> +++ llvm/trunk/test/CodeGen/X86/inline-asm-e-constraint.ll Fri Aug  2 22:52:47 2019
> @@ -0,0 +1,17 @@
> +; RUN: not llc -mtriple=x86_64-unknown-unknown -no-integrated-as < %s 2>&1 | FileCheck %s
> +
> +%struct.s = type { i32, i32 }
> +
> + at pr40890.s = internal global %struct.s zeroinitializer, align 4
> +
> +; CHECK: error: invalid operand for inline asm constraint 'e'
> +; CHECK: error: invalid operand for inline asm constraint 'e'
> +
> +define void @pr40890() {
> +entry:
> +  ; This pointer cannot be used as an integer constant expression.
> +  tail call void asm sideeffect "\0A#define GLOBAL_A abcd$0\0A", "e,~{dirflag},~{fpsr},~{flags}"(i32* getelementptr inbounds (%struct.s, %struct.s* @pr40890.s, i64 0, i32 0))
> +  ; Floating-point is also not okay.
> +  tail call void asm sideeffect "\0A#define PI abcd$0\0A", "e,~{dirflag},~{fpsr},~{flags}"(float 0x40091EB860000000)
> +  ret void
> +}
>
> Added: llvm/trunk/test/CodeGen/X86/inline-asm-imm-out-of-range.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/inline-asm-imm-out-of-range.ll?rev=367750&view=auto
> ==============================================================================
> --- llvm/trunk/test/CodeGen/X86/inline-asm-imm-out-of-range.ll (added)
> +++ llvm/trunk/test/CodeGen/X86/inline-asm-imm-out-of-range.ll Fri Aug  2 22:52:47 2019
> @@ -0,0 +1,7 @@
> +; RUN: not llc -mtriple=i686-- -no-integrated-as < %s 2>&1 | FileCheck %s
> +
> +; CHECK: error: value out of range for constraint 'I'
> +define void @foo() {
> +  call void asm sideeffect "foo $0", "I"(i32 42)
> +  ret void
> +}
>
> Added: llvm/trunk/test/CodeGen/X86/inline-asm-n-constraint.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/inline-asm-n-constraint.ll?rev=367750&view=auto
> ==============================================================================
> --- llvm/trunk/test/CodeGen/X86/inline-asm-n-constraint.ll (added)
> +++ llvm/trunk/test/CodeGen/X86/inline-asm-n-constraint.ll Fri Aug  2 22:52:47 2019
> @@ -0,0 +1,13 @@
> +; RUN: llc -mtriple=x86_64-unknown-unknown -no-integrated-as < %s 2>&1 | FileCheck %s
> +
> + at x = global i32 0, align 4
> +
> +define void @foo() {
> +; CHECK-LABEL: foo:
> +  call void asm sideeffect "foo $0", "n"(i32 42) nounwind
> +; CHECK:      #APP
> +; CHECK-NEXT: foo    $42
> +; CHECK-NEXT: #NO_APP
> +  ret void
> +; CHECK-NEXT: retq
> +}
>
>
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