1 //===--- TargetInfo.cpp - Information about Target machine ----------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
27 // The fake address space map must have a distinct entry for each
28 // language-specific address space.
55   // Set defaults.  Defaults are set for a 32-bit RISC platform, like PPC or  in TargetInfo()
98   // From the glibc documentation, on GNU systems, malloc guarantees 16-byte  in TargetInfo()
99   // alignment on 64-bit systems and 8-byte alignment on 32-bit systems. See  in TargetInfo()
100   // https://www.gnu.org/software/libc/manual/html_node/Malloc-Examples.html.  in TargetInfo()
102   // and OpenBSD, the alignment is 16 bytes on both 64-bit and 32-bit systems.  in TargetInfo()
174   // Default to an empty address space map.  in TargetInfo()
197   Diags.Report(diag::err_opt_not_valid_on_target) << "cf-protection=branch";  in checkCFProtectionBranchSupported()
203   Diags.Report(diag::err_opt_not_valid_on_target) << "cf-protection=return";  in checkCFProtectionReturnSupported()
207 /// getTypeName - Return the user string for the specified integer type enum.
208 /// For example, SignedShort -> "short".
225 /// getTypeConstantSuffix - Return the constant suffix for the specified
226 /// integer type enum. For example, SignedLong -> "L".
249 /// getTypeFormatModifier - Return the printf format modifier for the
250 /// specified integer type enum. For example, SignedLong -> "l".
268 /// getTypeWidth - Return the width (in bits) of the specified integer type
269 /// enum. For example, SignedInt -> getIntWidth().
350 /// getTypeAlign - Return the alignment (in bits) of the specified integer type
351 /// enum. For example, SignedInt -> getIntAlign().
368 /// isTypeSigned - Return whether an integer types is signed. Returns true if
388 /// adjust - Set forced language options.
430     // Embedded 32-bit targets (OpenCL EP) might have double C type  in adjust()
453     // OpenCL C v3.0 s6.7.5 - The generic address space requires support for  in adjust()
456     // OpenCL C v3.0 s6.2.1 - OpenCL pipes require support of OpenCL C 2.0  in adjust()
521     Diags.Report(diag::err_opt_not_valid_on_target) << "-fprotect-parens";  in adjust()
540     if (Name[0] != '+' && Name[0] != '-')  in initFeatureMap()
568     if (Feature.starts_with("branch-protection=")) {  in parseTargetAttr()
584     } else if (Feature.starts_with("no-"))  in parseTargetAttr()
585       Ret.Features.push_back("-" + Feature.split("-").second.str());  in parseTargetAttr()
618 //===----------------------------------------------------------------------===//
628 /// isValidClobber - Returns whether the passed in string is
636 /// isValidGCCRegisterName - Returns whether the passed in string
727   // An output constraint must start with '=' or '+'  in validateOutputConstraint()
741         // Eventually, an unknown constraint should just be treated as 'g'.  in validateOutputConstraint()
756     case 'V': // non-offsetable memory operand.  in validateOutputConstraint()
766     case ',': // multiple alternative constraint.  Pass it.  in validateOutputConstraint()
771     case '#': // Ignore as constraint.  in validateOutputConstraint()
789   // Early clobber with a read-write constraint which doesn't permit registers  in validateOutputConstraint()
794   // If a constraint allows neither memory nor register operands it contains  in validateOutputConstraint()
813   std::string SymbolicName(Start, Name - Start);  in resolveSymbolicName()
833       // Check if we have a matching constraint  in validateInputConstraint()
840         if (StringRef(DigitStart, DigitEnd - DigitStart + 1)  in validateInputConstraint()
844         // Check if matching constraint is out of bounds.  in validateInputConstraint()
851         // If the constraint is already tied, it must be tied to the  in validateInputConstraint()
856         // The constraint should have the same info as the respective  in validateInputConstraint()
857         // output constraint.  in validateInputConstraint()
862         // constraint should just be treated as 'g'.  in validateInputConstraint()
871       // If the constraint is already tied, it must be tied to the  in validateInputConstraint()
891     case 'I':  // Various constant constraints with target-specific meanings.  in validateInputConstraint()
907     case 'V': // non-offsettable memory operand.  in validateInputConstraint()
921     case ',': // multiple alternative constraint.  Ignore comma.  in validateInputConstraint()
923     case '#': // Ignore as constraint.  in validateInputConstraint()
965          getShortFractScale() == getUnsignedShortFractScale() - 1);  in CheckFixedPointBits()
967          getFractScale() == getUnsignedFractScale() - 1);  in CheckFixedPointBits()
969          getLongFractScale() == getUnsignedLongFractScale() - 1);  in CheckFixedPointBits()
973   // fixed-point types:  in CheckFixedPointBits()
974   // - signed fract types  in CheckFixedPointBits()
975   // - unsigned fract types  in CheckFixedPointBits()
976   // - signed accum types  in CheckFixedPointBits()
977   // - unsigned accum types.  in CheckFixedPointBits()
988   // fixed-point types:  in CheckFixedPointBits()
989   // - signed accum types  in CheckFixedPointBits()
990   // - unsigned accum types  in CheckFixedPointBits()