From: Uros Bizjak Date: Wed, 20 May 2020 23:53:09 +0000 (+0200) Subject: i386: Do not use commutative operands with (use) RTX [PR95238] X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=7797f5ec58078523a452e5cf239596e13d77d885;p=gcc.git i386: Do not use commutative operands with (use) RTX [PR95238] 2020-05-21 Uroš Bizjak gcc/ChangeLog: PR target/95218 * config/i386/mmx.md (*mmx_v2sf): Do not mark operands 1 and 2 commutative. Manually swap operands. (*mmx_nabsv2sf2): Ditto. Partially revert: * config/i386/i386.md (*tf2_1): Mark operands 1 and 2 commutative. (*nabstf2_1): Ditto. * config/i386/sse.md (*2): Mark operands 1 and 2 commutative. Do not swap operands. (*nabs2): Ditto. --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3368d86c1e1..b97e8ea51f7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,21 @@ +2020-05-21 UroÅ¡ Bizjak + + PR target/95218 + + * config/i386/mmx.md (*mmx_v2sf): Do not mark + operands 1 and 2 commutative. Manually swap operands. + (*mmx_nabsv2sf2): Ditto. + + Partially revert: + 2020-05-18 UroÅ¡ Bizjak + + * config/i386/i386.md (*tf2_1): + Mark operands 1 and 2 commutative. + (*nabstf2_1): Ditto. + * config/i386/sse.md (*2): Mark operands 1 and 2 + commutative. Do not swap operands. + (*nabs2): Ditto. + 2020-05-20 UroÅ¡ Bizjak PR target/95229 diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 29c2b4795f0..e81c737b7bc 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -10037,31 +10037,53 @@ "ix86_expand_fp_absneg_operator (, TFmode, operands); DONE;") (define_insn_and_split "*tf2_1" - [(set (match_operand:TF 0 "register_operand" "=x,Yv") + [(set (match_operand:TF 0 "register_operand" "=x,x,Yv,Yv") (absneg:TF - (match_operand:TF 1 "vector_operand" "%0,Yv"))) - (use (match_operand:TF 2 "vector_operand" "xBm,Yvm"))] + (match_operand:TF 1 "vector_operand" "0,xBm,Yv,m"))) + (use (match_operand:TF 2 "vector_operand" "xBm,0,Yvm,Yv"))] "TARGET_SSE" "#" "&& reload_completed" [(set (match_dup 0) (:TF (match_dup 1) (match_dup 2)))] - "" - [(set_attr "isa" "noavx,avx")]) +{ + 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]); + } +} + [(set_attr "isa" "noavx,noavx,avx,avx")]) (define_insn_and_split "*nabstf2_1" - [(set (match_operand:TF 0 "register_operand" "=x,Yv") + [(set (match_operand:TF 0 "register_operand" "=x,x,Yv,Yv") (neg:TF (abs:TF - (match_operand:TF 1 "vector_operand" "%0,Yv")))) - (use (match_operand:TF 2 "vector_operand" "xBm,Yvm"))] + (match_operand:TF 1 "vector_operand" "0,xBm,Yv,m")))) + (use (match_operand:TF 2 "vector_operand" "xBm,0,Yvm,Yv"))] "TARGET_SSE" "#" "&& reload_completed" [(set (match_dup 0) (ior:TF (match_dup 1) (match_dup 2)))] - "" - [(set_attr "isa" "noavx,avx")]) +{ + 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]); + } +} + [(set_attr "isa" "noavx,noavx,avx,avx")]) (define_expand "2" [(set (match_operand:X87MODEF 0 "register_operand") @@ -10117,7 +10139,7 @@ (define_split [(set (match_operand:MODEF 0 "sse_reg_operand") (absneg:MODEF - (match_operand:MODEF 1 "vector_operand"))) + (match_operand:MODEF 1 "sse_reg_operand"))) (use (match_operand: 2 "vector_operand")) (clobber (reg:CC FLAGS_REG))] "SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH @@ -10152,7 +10174,7 @@ [(const_int 0)] "ix86_split_fp_absneg_operator (, mode, operands); DONE;") -(define_insn "*nabs2_1" +(define_insn_and_split "*nabs2_1" [(set (match_operand:MODEF 0 "register_operand" "=x,x,Yv") (neg:MODEF (abs:MODEF @@ -10160,16 +10182,7 @@ (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:MODEF 0 "sse_reg_operand") - (neg:MODEF - (abs:MODEF - (match_operand:MODEF 1 "vector_operand")))) - (use (match_operand: 2 "vector_operand"))] - "SSE_FLOAT_MODE_P (mode) && TARGET_SSE_MATH - && reload_completed" + "&& reload_completed" [(set (match_dup 0) (ior: (match_dup 1) (match_dup 2)))] { @@ -10181,7 +10194,8 @@ if (!TARGET_AVX && operands_match_p (operands[0], operands[2])) std::swap (operands[1], operands[2]); -}) +} + [(set_attr "isa" "noavx,noavx,avx")]) ;; Conditionalize these after reload. If they match before reload, we ;; lose the clobber and ability to use integer instructions. diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md index f73c8452651..5deef683b0b 100644 --- a/gcc/config/i386/mmx.md +++ b/gcc/config/i386/mmx.md @@ -246,31 +246,37 @@ "ix86_expand_fp_absneg_operator (, V2SFmode, operands); DONE;") (define_insn_and_split "*mmx_v2sf2" - [(set (match_operand:V2SF 0 "register_operand" "=x,x") + [(set (match_operand:V2SF 0 "register_operand" "=x,x,x") (absneg:V2SF - (match_operand:V2SF 1 "register_operand" "%0,x"))) - (use (match_operand:V2SF 2 "nonimmediate_operand" "x,x"))] + (match_operand:V2SF 1 "register_operand" "0,x,x"))) + (use (match_operand:V2SF 2 "nonimmediate_operand" "x,0,x"))] "TARGET_MMX_WITH_SSE" "#" "&& reload_completed" [(set (match_dup 0) (:V2SF (match_dup 1) (match_dup 2)))] - "" - [(set_attr "isa" "noavx,avx")]) +{ + if (!TARGET_AVX && operands_match_p (operands[0], operands[2])) + std::swap (operands[1], operands[2]); +} + [(set_attr "isa" "noavx,noavx,avx")]) (define_insn_and_split "*mmx_nabsv2sf2" - [(set (match_operand:V2SF 0 "register_operand" "=x,x") + [(set (match_operand:V2SF 0 "register_operand" "=x,x,x") (neg:V2SF (abs:V2SF - (match_operand:V2SF 1 "register_operand" "%0,x")))) - (use (match_operand:V2SF 2 "nonimmediate_operand" "x,x"))] + (match_operand:V2SF 1 "register_operand" "0,x,x")))) + (use (match_operand:V2SF 2 "nonimmediate_operand" "x,0,x"))] "TARGET_MMX_WITH_SSE" "#" "&& reload_completed" [(set (match_dup 0) (ior:V2SF (match_dup 1) (match_dup 2)))] - "" - [(set_attr "isa" "noavx,avx")]) +{ + if (!TARGET_AVX && operands_match_p (operands[0], operands[2])) + std::swap (operands[1], operands[2]); +} + [(set_attr "isa" "noavx,noavx,avx")]) (define_expand "mmx_addv2sf3" [(set (match_operand:V2SF 0 "register_operand") diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md index c831543b4e9..5071fb2895a 100644 --- a/gcc/config/i386/sse.md +++ b/gcc/config/i386/sse.md @@ -1638,31 +1638,53 @@ "ix86_expand_fp_absneg_operator (, mode, operands); DONE;") (define_insn_and_split "*2" - [(set (match_operand:VF 0 "register_operand" "=x,v") + [(set (match_operand:VF 0 "register_operand" "=x,x,v,v") (absneg:VF - (match_operand:VF 1 "vector_operand" "%0,v"))) - (use (match_operand:VF 2 "vector_operand" "xBm,vm"))] + (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) (:VF (match_dup 1) (match_dup 2)))] - "" - [(set_attr "isa" "noavx,avx")]) +{ + 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]); + } +} + [(set_attr "isa" "noavx,noavx,avx,avx")]) (define_insn_and_split "*nabs2" - [(set (match_operand:VF 0 "register_operand" "=x,v") + [(set (match_operand:VF 0 "register_operand" "=x,x,v,v") (neg:VF (abs:VF - (match_operand:VF 1 "vector_operand" "%0,v")))) - (use (match_operand:VF 2 "vector_operand" "xBm,vm"))] + (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) (ior:VF (match_dup 1) (match_dup 2)))] - "" - [(set_attr "isa" "noavx,avx")]) +{ + 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]); + } +} + [(set_attr "isa" "noavx,noavx,avx,avx")]) (define_expand "3" [(set (match_operand:VF 0 "register_operand")