[llvm-bugs] [Bug 28110] New: [x86, AVX] conflicting definitions for FP compare intrinsics

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28110

            Bug ID: 28110
           Summary: [x86, AVX] conflicting definitions for FP compare
                    intrinsics
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Headers
          Assignee: unassignedclangbugs at nondot.org
          Reporter: spatel+llvm at rotateright.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

In avxintrin.h around line 1601:

/* Compare */
#define _CMP_EQ_OQ    0x00 /* Equal (ordered, non-signaling)  */
#define _CMP_LT_OS    0x01 /* Less-than (ordered, signaling)  */
#define _CMP_LE_OS    0x02 /* Less-than-or-equal (ordered, signaling)  */
#define _CMP_UNORD_Q  0x03 /* Unordered (non-signaling)  */
#define _CMP_NEQ_UQ   0x04 /* Not-equal (unordered, non-signaling)  */
#define _CMP_NLT_US   0x05 /* Not-less-than (unordered, signaling)  */
#define _CMP_NLE_US   0x06 /* Not-less-than-or-equal (unordered, signaling)  */
#define _CMP_ORD_Q    0x07 /* Ordered (nonsignaling)   */
#define _CMP_EQ_UQ    0x08 /* Equal (unordered, non-signaling)  */
#define _CMP_NGE_US   0x09 /* Not-greater-than-or-equal (unord, signaling)  */
#define _CMP_NGT_US   0x0a /* Not-greater-than (unordered, signaling)  */
#define _CMP_FALSE_OQ 0x0b /* False (ordered, non-signaling)  */
#define _CMP_NEQ_OQ   0x0c /* Not-equal (ordered, non-signaling)  */
#define _CMP_GE_OS    0x0d /* Greater-than-or-equal (ordered, signaling)  */
#define _CMP_GT_OS    0x0e /* Greater-than (ordered, signaling)  */
#define _CMP_TRUE_UQ  0x0f /* True (unordered, non-signaling)  */
#define _CMP_EQ_OS    0x10 /* Equal (ordered, signaling)  */
#define _CMP_LT_OQ    0x11 /* Less-than (ordered, non-signaling)  */
#define _CMP_LE_OQ    0x12 /* Less-than-or-equal (ordered, non-signaling)  */
#define _CMP_UNORD_S  0x13 /* Unordered (signaling)  */
#define _CMP_NEQ_US   0x14 /* Not-equal (unordered, signaling)  */
#define _CMP_NLT_UQ   0x15 /* Not-less-than (unordered, non-signaling)  */
#define _CMP_NLE_UQ   0x16 /* Not-less-than-or-equal (unord, non-signaling)  */
#define _CMP_ORD_S    0x17 /* Ordered (signaling)  */
#define _CMP_EQ_US    0x18 /* Equal (unordered, signaling)  */
#define _CMP_NGE_UQ   0x19 /* Not-greater-than-or-equal (unord, non-sign)  */
#define _CMP_NGT_UQ   0x1a /* Not-greater-than (unordered, non-signaling)  */
#define _CMP_FALSE_OS 0x1b /* False (ordered, signaling)  */
#define _CMP_NEQ_OS   0x1c /* Not-equal (ordered, signaling)  */
#define _CMP_GE_OQ    0x1d /* Greater-than-or-equal (ordered, non-signaling) 
*/
#define _CMP_GT_OQ    0x1e /* Greater-than (ordered, non-signaling)  */
#define _CMP_TRUE_US  0x1f /* True (unordered, signaling)  */

And then a few lines later (and repeated 5 more times, once for each FP compare
intrinsic):
/// \param c
///    An immediate integer operand, with bits [4:0] specifying which
comparison
///    operation to use:
///    00h, 08h, 10h, 18h: Equal
///    01h, 09h, 11h, 19h: Less than
///    02h, 0Ah, 12h, 1Ah: Less than or equal / Greater than or equal (swapped
///                        operands)
///    03h, 0Bh, 13h, 1Bh: Unordered
///    04h, 0Ch, 14h, 1Ch: Not equal
///    05h, 0Dh, 15h, 1Dh: Not less than / Not greater than (swapped operands)
///    06h, 0Eh, 16h, 1Eh: Not less than or equal / Not greater than or equal
///                        (swapped operands)
///    07h, 0Fh, 17h, 1Fh: Ordered

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