spatel added a comment. In http://reviews.llvm.org/D21268#455668, @RKSimon wrote:
> Is there any reason that we shouldn't include the avxintrin.h > __builtin_ia32_cmppd/__builtin_ia32_cmpps/__builtin_ia32_cmppd256/__builtin_ia32_cmpps256 > packed intrinsics in this CGBuiltin.cpp patch? Since we're heading towards > nixing them anyhow. AVX is complicated by the enhancement to 32 compare ops (for Intel AVX). Note that avxintrin.h currently has conflicting comments about the immediate value meanings: /* 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) */ /// \brief Compares each of the corresponding double-precision values of two /// 128-bit vectors of [2 x double], using the operation specified by the /// immediate integer operand. Returns a [2 x double] vector consisting of /// two doubles corresponding to the two comparison results: zero if the /// comparison is false, and all 1's if the comparison is true. /// /// \headerfile <x86intrin.h> /// /// \code /// __m128d _mm_cmp_pd(__m128d a, __m128d b, const int c); /// \endcode /// /// This intrinsic corresponds to the \c VCMPPD / CMPPD instruction. /// /// \param a /// A 128-bit vector of [2 x double]. /// \param b /// A 128-bit vector of [2 x double]. /// \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 /// \returns A 128-bit vector of [2 x double] containing the comparison results. http://reviews.llvm.org/D21268 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
