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Thu, 9 Nov 2023 08:24:11 +0000 (GMT) From: Stefan Schulze Frielinghaus To: krebbel@linux.ibm.com, gcc-patches@gcc.gnu.org Cc: Stefan Schulze Frielinghaus Subject: [PATCH] s390: Reduce number of patterns where the condition is false anyway Date: Thu, 9 Nov 2023 09:24:09 +0100 Message-ID: <20231109082409.2890-1-stefansf@linux.ibm.com> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: oGbTAZXWhJZ7IsSXacIy8BEAr1wZFad9 X-Proofpoint-GUID: oGbTAZXWhJZ7IsSXacIy8BEAr1wZFad9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-09_07,2023-11-08_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxlogscore=946 suspectscore=0 priorityscore=1501 bulkscore=0 adultscore=0 malwarescore=0 mlxscore=0 spamscore=0 phishscore=0 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311090068 X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782074086513971554 X-GMAIL-MSGID: 1782074086513971554 For patterns which make use of two modes, do not build the cross product and then exclude illegal combinations via conditions but rather do not create those in the first place. Here we are following the idea of the attribute TOINTVEC/tointvec and introduce TOINT/toint. Bootstrapped and regtested on s390. Ok for mainline? gcc/ChangeLog: * config/s390/s390.md (VX_CONV_INT): Remove iterator. (gf): Add float mappings. (TOINT, toint): New attribute. (*fixuns_trunc2_z13): Remove. (*fixuns_trunc2_z13): Add. (*fix_trunc2_bfp_z13): Remove. (*fix_trunc2_bfp_z13): Add. (*floatuns2_z13): Remove. (*floatuns2_z13): Add. * config/s390/vector.md (VX_VEC_CONV_INT): Remove iterator. (float2): Remove. (float2): Add. (floatuns2): Remove. (floatuns2): Add. (fix_trunc2): Remove. (fix_trunc2): Add. (fixuns_trunc2): Remove. (fixuns_trunc2): Add. --- gcc/config/s390/s390.md | 52 +++++++++++++++++++-------------------- gcc/config/s390/vector.md | 45 +++++++++++++++------------------ 2 files changed, 46 insertions(+), 51 deletions(-) diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md index 3f29ba21442..0ea2aaf7627 100644 --- a/gcc/config/s390/s390.md +++ b/gcc/config/s390/s390.md @@ -668,7 +668,6 @@ ; 32 bit int<->fp conversion instructions are available since VXE2 (z15). (define_mode_iterator VX_CONV_BFP [DF (SF "TARGET_VXE2")]) -(define_mode_iterator VX_CONV_INT [DI (SI "TARGET_VXE2")]) ;; These mode iterators allow 31-bit and 64-bit GPR patterns to be generated ;; from the same template. @@ -838,7 +837,7 @@ ;; In GPR templates, a string like "cdbr" will expand to "cgdbr" in DImode ;; and "cfdbr" in SImode. -(define_mode_attr gf [(DI "g") (SI "f")]) +(define_mode_attr gf [(DI "g") (SI "f") (DF "g") (SF "f")]) ;; In GPR templates, a string like sll will expand to sllg for DI ;; and sllk for SI. This way it is possible to merge the new z196 SI @@ -897,6 +896,10 @@ (define_mode_attr asm_fcmp [(CCVEQ "e") (CCVFH "h") (CCVFHE "he")]) (define_mode_attr insn_cmp [(CCVEQ "eq") (CCVIH "h") (CCVIHU "hl") (CCVFH "h") (CCVFHE "he")]) +; Analogue to TOINTVEC / tointvec +(define_mode_attr TOINT [(TF "TI") (DF "DI") (SF "SI")]) +(define_mode_attr toint [(TF "ti") (DF "di") (SF "si")]) + ;; Subst pattern definitions (include "subst.md") @@ -5266,16 +5269,15 @@ ; df -> unsigned di, vxe2: sf -> unsigned si ; clgdbr, clfebr, wclgdb, wclfeb -(define_insn "*fixuns_trunc2_z13" - [(set (match_operand:VX_CONV_INT 0 "register_operand" "=d,v") - (unsigned_fix:VX_CONV_INT (match_operand:VX_CONV_BFP 1 "register_operand" "f,v"))) - (unspec:DI [(match_operand:DI 2 "immediate_operand" "K,K")] UNSPEC_ROUND) +(define_insn "*fixuns_trunc2_z13" + [(set (match_operand: 0 "register_operand" "=d,v") + (unsigned_fix: (match_operand:VX_CONV_BFP 1 "register_operand" "f,v"))) + (unspec:DI [(match_operand:DI 2 "immediate_operand" "K,K")] UNSPEC_ROUND) (clobber (reg:CC CC_REGNUM))] - "TARGET_VX && TARGET_HARD_FLOAT - && GET_MODE_SIZE (mode) == GET_MODE_SIZE (mode)" + "TARGET_VX && TARGET_HARD_FLOAT" "@ - clbr\t%0,%h2,%1,0 - wclb\t%v0,%v1,0,%h2" + clbr\t%0,%h2,%1,0 + wclb\t%v0,%v1,0,%h2" [(set_attr "op_type" "RRF,VRR") (set_attr "type" "ftoi")]) @@ -5305,16 +5307,15 @@ ; df -> signed di, vxe2: sf -> signed si ; cgdbr, cfebr, wcgdb, wcfeb -(define_insn "*fix_trunc2_bfp_z13" - [(set (match_operand:VX_CONV_INT 0 "register_operand" "=d,v") - (fix:VX_CONV_INT (match_operand:VX_CONV_BFP 1 "register_operand" "f,v"))) - (unspec:VX_CONV_INT [(match_operand:VX_CONV_INT 2 "immediate_operand" "K,K")] UNSPEC_ROUND) +(define_insn "*fix_trunc2_bfp_z13" + [(set (match_operand: 0 "register_operand" "=d,v") + (fix: (match_operand:VX_CONV_BFP 1 "register_operand" "f,v"))) + (unspec: [(match_operand: 2 "immediate_operand" "K,K")] UNSPEC_ROUND) (clobber (reg:CC CC_REGNUM))] - "TARGET_VX && TARGET_HARD_FLOAT - && GET_MODE_SIZE (mode) == GET_MODE_SIZE (mode)" + "TARGET_VX && TARGET_HARD_FLOAT" "@ - cbr\t%0,%h2,%1 - wcb\t%v0,%v1,0,%h2" + cbr\t%0,%h2,%1 + wcb\t%v0,%v1,0,%h2" [(set_attr "op_type" "RRE,VRR") (set_attr "type" "ftoi")]) @@ -5420,14 +5421,13 @@ ; floatuns(si|di)(tf|df|sf|td|dd)2 instruction pattern(s). ; -(define_insn "*floatuns2_z13" - [(set (match_operand:VX_CONV_BFP 0 "register_operand" "=f,v") - (unsigned_float:VX_CONV_BFP (match_operand:VX_CONV_INT 1 "register_operand" "d,v")))] - "TARGET_VX && TARGET_HARD_FLOAT - && GET_MODE_SIZE (mode) == GET_MODE_SIZE (mode)" +(define_insn "*floatuns2_z13" + [(set (match_operand:VX_CONV_BFP 0 "register_operand" "=f,v") + (unsigned_float:VX_CONV_BFP (match_operand: 1 "register_operand" "d,v")))] + "TARGET_VX && TARGET_HARD_FLOAT" "@ - clbr\t%0,0,%1,0 - wclb\t%v0,%v1,0,0" + clbr\t%0,0,%1,0 + wclb\t%v0,%v1,0,0" [(set_attr "op_type" "RRE,VRR") (set_attr "type" "itofdf")]) @@ -7568,7 +7568,7 @@ ; div(df|sf)3 instruction pattern(s). ; -; dxbr, ddbr, debr, dxb, ddb, deb, ddtr, dxtr +; dxbr, ddbr, debr, ddb, deb, ddtr, dxtr (define_insn "div3" [(set (match_operand:FP 0 "register_operand" "=f,f,f,v,v") (div:FP (match_operand:FP 1 "register_operand" "f,0,0,v,v") diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md index 7d1eb36e844..0f91b590d0d 100644 --- a/gcc/config/s390/vector.md +++ b/gcc/config/s390/vector.md @@ -86,7 +86,6 @@ ; 32 bit int<->fp vector conversion instructions are available since VXE2 (z15). (define_mode_iterator VX_VEC_CONV_BFP [V2DF (V4SF "TARGET_VXE2")]) -(define_mode_iterator VX_VEC_CONV_INT [V2DI (V4SI "TARGET_VXE2")]) ; Empty string for all but TImode. This is used to hide the TImode ; expander name in case it is defined already. See addti3 for an @@ -2508,12 +2507,11 @@ ; op2: inexact exception not suppressed (IEEE 754 2008) ; op3: according to current rounding mode ; vcdgb, vcefb -(define_insn "float2" - [(set (match_operand:VX_VEC_CONV_BFP 0 "register_operand" "=v") - (float:VX_VEC_CONV_BFP (match_operand:VX_VEC_CONV_INT 1 "register_operand" "v")))] - "TARGET_VX - && GET_MODE_UNIT_SIZE (mode) == GET_MODE_UNIT_SIZE (mode)" - "vcb\t%v0,%v1,0,0" +(define_insn "float2" + [(set (match_operand:VX_VEC_CONV_BFP 0 "register_operand" "=v") + (float:VX_VEC_CONV_BFP (match_operand: 1 "register_operand" "v")))] + "TARGET_VX" + "vcb\t%v0,%v1,0,0" [(set_attr "op_type" "VRR")]) ; There is no instruction for loading a signed integer into an extended BFP @@ -2539,12 +2537,11 @@ ; op2: inexact exception not suppressed (IEEE 754 2008) ; op3: according to current rounding mode ; vcdlgb, vcelfb -(define_insn "floatuns2" - [(set (match_operand:VX_VEC_CONV_BFP 0 "register_operand" "=v") - (unsigned_float:VX_VEC_CONV_BFP (match_operand:VX_VEC_CONV_INT 1 "register_operand" "v")))] - "TARGET_VX - && GET_MODE_UNIT_SIZE (mode) == GET_MODE_UNIT_SIZE (mode)" - "vclb\t%v0,%v1,0,0" +(define_insn "floatuns2" + [(set (match_operand:VX_VEC_CONV_BFP 0 "register_operand" "=v") + (unsigned_float:VX_VEC_CONV_BFP (match_operand: 1 "register_operand" "v")))] + "TARGET_VX" + "vclb\t%v0,%v1,0,0" [(set_attr "op_type" "VRR")]) ; There is no instruction for loading an unsigned integer into an extended BFP @@ -2570,12 +2567,11 @@ ; op2: inexact exception not suppressed (IEEE 754 2008) ; op3: rounding mode 5 (round towards 0 C11 6.3.1.4) ; vcgdb, vcfeb -(define_insn "fix_trunc2" - [(set (match_operand:VX_VEC_CONV_INT 0 "register_operand" "=v") - (fix:VX_VEC_CONV_INT (match_operand:VX_VEC_CONV_BFP 1 "register_operand" "v")))] - "TARGET_VX - && GET_MODE_UNIT_SIZE (mode) == GET_MODE_UNIT_SIZE (mode)" - "vcb\t%v0,%v1,0,5" +(define_insn "fix_trunc2" + [(set (match_operand: 0 "register_operand" "=v") + (fix: (match_operand:VX_VEC_CONV_BFP 1 "register_operand" "v")))] + "TARGET_VX" + "vcb\t%v0,%v1,0,5" [(set_attr "op_type" "VRR")]) ; There is no instruction for rounding an extended BFP operand in a VR into @@ -2604,12 +2600,11 @@ ; op2: inexact exception not suppressed (IEEE 754 2008) ; op3: rounding mode 5 (round towards 0 C11 6.3.1.4) ; vclgdb, vclfeb -(define_insn "fixuns_trunc2" - [(set (match_operand:VX_VEC_CONV_INT 0 "register_operand" "=v") - (unsigned_fix:VX_VEC_CONV_INT (match_operand:VX_VEC_CONV_BFP 1 "register_operand" "v")))] - "TARGET_VX - && GET_MODE_UNIT_SIZE (mode) == GET_MODE_UNIT_SIZE (mode)" - "vclb\t%v0,%v1,0,5" +(define_insn "fixuns_trunc2" + [(set (match_operand: 0 "register_operand" "=v") + (unsigned_fix: (match_operand:VX_VEC_CONV_BFP 1 "register_operand" "v")))] + "TARGET_VX" + "vclb\t%v0,%v1,0,5" [(set_attr "op_type" "VRR")]) ; There is no instruction for rounding an extended BFP operand in a VR into