Index: config/i386/i386.md =================================================================== --- config/i386/i386.md (revision 272386) +++ config/i386/i386.md (working copy) @@ -9452,6 +9452,16 @@ "#" [(set_attr "isa" "noavx,noavx,avx,avx")]) +(define_insn "*nabstf2_1" + [(set (match_operand:TF 0 "register_operand" "=x,x,Yv,Yv") + (neg:TF + (abs:TF + (match_operand:TF 1 "vector_operand" "0,xBm,Yv,m")))) + (use (match_operand:TF 2 "vector_operand" "xBm,0,Yvm,Yv"))] + "TARGET_SSE" + "#" + [(set_attr "isa" "noavx,noavx,avx,avx")]) + (define_expand "2" [(set (match_operand:X87MODEF 0 "register_operand") (absneg:X87MODEF (match_operand:X87MODEF 1 "register_operand")))] @@ -9553,6 +9563,48 @@ [(const_int 0)] "ix86_split_fp_absneg_operator (, mode, operands); DONE;") +(define_insn "*nabs2_1" + [(set (match_operand:MODEF 0 "register_operand" "=x,x,Yv") + (neg:MODEF + (abs:MODEF + (match_operand:MODEF 1 "register_operand" "0,x,Yv")))) + (use (match_operand: 2 "vector_operand" "xBm,0,Yvm"))] + "SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH" + "#" + [(set_attr "isa" "noavx,noavx,avx")]) + +(define_split + [(set (match_operand:SSEMODEF 0 "sse_reg_operand") + (neg:SSEMODEF + (abs:SSEMODEF + (match_operand:SSEMODEF 1 "vector_operand")))) + (use (match_operand: 2 "vector_operand"))] + "((SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH) + || (TARGET_SSE && (mode == TFmode))) + && reload_completed" + [(set (match_dup 0) (match_dup 3))] +{ + machine_mode mode = mode; + machine_mode vmode = mode; + + operands[0] = lowpart_subreg (vmode, operands[0], mode); + operands[1] = lowpart_subreg (vmode, operands[1], mode); + + if (TARGET_AVX) + { + if (MEM_P (operands[1])) + std::swap (operands[1], operands[2]); + } + else + { + if (operands_match_p (operands[0], operands[2])) + std::swap (operands[1], operands[2]); + } + + operands[3] + = gen_rtx_fmt_ee (IOR, vmode, operands[1], operands[2]); +}) + ;; Conditionalize these after reload. If they match before reload, we ;; lose the clobber and ability to use integer instructions. Index: config/i386/sse.md =================================================================== --- config/i386/sse.md (revision 272386) +++ config/i386/sse.md (working copy) @@ -1748,6 +1748,33 @@ } [(set_attr "isa" "noavx,noavx,avx,avx")]) +(define_insn_and_split "*nabs2" + [(set (match_operand:VF 0 "register_operand" "=x,x,v,v") + (neg:VF + (abs:VF + (match_operand:VF 1 "vector_operand" "0,xBm,v,m")))) + (use (match_operand:VF 2 "vector_operand" "xBm,0,vm,v"))] + "TARGET_SSE" + "#" + "&& reload_completed" + [(set (match_dup 0) (match_dup 3))] +{ + if (TARGET_AVX) + { + if (MEM_P (operands[1])) + std::swap (operands[1], operands[2]); + } + else + { + if (operands_match_p (operands[0], operands[2])) + std::swap (operands[1], operands[2]); + } + + operands[3] + = gen_rtx_fmt_ee (IOR, mode, operands[1], operands[2]); +} + [(set_attr "isa" "noavx,noavx,avx,avx")]) + (define_expand "3" [(set (match_operand:VF 0 "register_operand") (plusminus:VF Index: testsuite/gcc.target/i386/fnabs.c =================================================================== --- testsuite/gcc.target/i386/fnabs.c (nonexistent) +++ testsuite/gcc.target/i386/fnabs.c (working copy) @@ -0,0 +1,21 @@ +/* PR target/62055 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -msse2 -mfpmath=sse" } */ + +float testf (float a) +{ + return -__builtin_fabsf (a); +} + +double test (double a) +{ + return -__builtin_fabs (a); +} + +__float128 testq (__float128 a) +{ + return -__builtin_fabsq (a); +} + +/* { dg-final { scan-assembler-times "\tv?orp\[sd\]\[ \t\]" 2 } } */ +/* { dg-final { scan-assembler-times "\tv?por\[ \t\]" 1 } } */