https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126784
--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <[email protected]>: https://gcc.gnu.org/g:d8a26b20e474d15e1842321be0a7163e52e68442 commit r17-3412-gd8a26b20e474d15e1842321be0a7163e52e68442 Author: H.J. Lu <[email protected]> Date: Tue Aug 11 12:39:54 2026 +0800 vec-narrow-1.C/vec-narrow-minmax-2.C: Compile with -msse4 and require int128 128bit vector smaxmin and umaxmin are added to SSE4. They don't require AVX512VL nor AVX512DQ. Also mmx.md has (define_insn "<code><mode>3" [(set (match_operand:MMXMODE14 0 "register_operand" "=Yr,*x,Yv") (smaxmin:MMXMODE14 (match_operand:MMXMODE14 1 "register_operand" "%0,0,Yv") (match_operand:MMXMODE14 2 "register_operand" "Yr,*x,Yv")))] "TARGET_SSE4_1 && TARGET_MMX_WITH_SSE" "@ p<maxmin_int><mmxvecsize>\t{%2, %0|%0, %2} p<maxmin_int><mmxvecsize>\t{%2, %0|%0, %2} vp<maxmin_int><mmxvecsize>\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,noavx,avx") (set_attr "type" "sseiadd") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,orig,vex") (set_attr "mode" "TI")]) (define_insn "<code><mode>3" [(set (match_operand:MMXMODE24 0 "register_operand" "=Yr,*x,Yv") (umaxmin:MMXMODE24 (match_operand:MMXMODE24 1 "register_operand" "%0,0,Yv") (match_operand:MMXMODE24 2 "register_operand" "Yr,*x,Yv")))] "TARGET_SSE4_1 && TARGET_MMX_WITH_SSE" "@ p<maxmin_int><mmxvecsize>\t{%2, %0|%0, %2} p<maxmin_int><mmxvecsize>\t{%2, %0|%0, %2} vp<maxmin_int><mmxvecsize>\t{%2, %1, %0|%0, %1, %2}" [(set_attr "isa" "noavx,noavx,avx") (set_attr "type" "sseiadd") (set_attr "prefix_extra" "1") (set_attr "prefix" "orig,orig,vex") (set_attr "mode" "TI")]) These patterns require TARGET_MMX_WITH_SSE #define TARGET_MMX_WITH_SSE (TARGET_64BIT && TARGET_SSE2) 64-bit vector smaxmin and umaxmin aren't available for ia32 even with -mmmx. Compile vec-narrow-1.C and vec-narrow-minmax-2.C with -msse4 and require int128 for x86. PR middle-end/126784 * g++.dg/tree-ssa/vec-narrow-1.C: Remove -Wno-psabi. Add -msse4 and require int128 for x86. * g++.dg/tree-ssa/vec-narrow-minmax-2.C: Likewise. Signed-off-by: H.J. Lu <[email protected]>
