https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89750
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> --- ix86_expand_sse_comi_round has /* See avxintrin.h for values. */ enum rtx_code comi_comparisons[32] = { UNEQ, GT, GE, UNORDERED, LTGT, UNLE, UNLT, ORDERED, UNEQ, UNLT, UNLE, LT, LTGT, GE, GT, LT, UNEQ, GT, GE, UNORDERED, LTGT, UNLE, UNLT, ORDERED, UNEQ, UNLT, UNLE, LT, LTGT, GE, GT, LT }; which looks wrong for #define _CMP_EQ_OQ 0x00 #define _CMP_LT_OS 0x01 #define _CMP_LE_OS 0x02 #define _CMP_UNORD_Q 0x03 #define _CMP_NEQ_UQ 0x04 #define _CMP_NLT_US 0x05 #define _CMP_NLE_US 0x06 #define _CMP_ORD_Q 0x07 #define _CMP_EQ_UQ 0x08 #define _CMP_NGE_US 0x09 #define _CMP_NGT_US 0x0a #define _CMP_FALSE_OQ 0x0b #define _CMP_NEQ_OQ 0x0c #define _CMP_GE_OS 0x0d #define _CMP_GT_OS 0x0e #define _CMP_TRUE_UQ 0x0f #define _CMP_EQ_OS 0x10 #define _CMP_LT_OQ 0x11 #define _CMP_LE_OQ 0x12 #define _CMP_UNORD_S 0x13 #define _CMP_NEQ_US 0x14 #define _CMP_NLT_UQ 0x15 #define _CMP_NLE_UQ 0x16 #define _CMP_ORD_S 0x17 #define _CMP_EQ_US 0x18 #define _CMP_NGE_UQ 0x19 #define _CMP_NGT_UQ 0x1a #define _CMP_FALSE_OS 0x1b #define _CMP_NEQ_OS 0x1c #define _CMP_GE_OQ 0x1d #define _CMP_GT_OQ 0x1e #define _CMP_TRUE_US 0x1f