From: Andrew Stubbs Date: Wed, 22 Nov 2023 13:46:12 +0000 (+0000) Subject: amdgcn: Fix vector TImode reload loop X-Git-Tag: basepoints/gcc-15~4381 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ecb22ddbe2b676484d04e7979f7991f7eec93470;p=thirdparty%2Fgcc.git amdgcn: Fix vector TImode reload loop I've only observed the problem on the devel/omp/gcc-13 branch, but this could theoretically affect mainline also. The mov insns for the other modes already have '$', so this completes the set. gcc/ChangeLog: * config/gcn/gcn-valu.md (*mov_4reg): Disparage AVGPR use when a reload is required. --- diff --git a/gcc/config/gcn/gcn-valu.md b/gcc/config/gcn/gcn-valu.md index 23f2bbe454ba..a928decd408c 100644 --- a/gcc/config/gcn/gcn-valu.md +++ b/gcc/config/gcn/gcn-valu.md @@ -566,10 +566,10 @@ (match_operand:V_4REG 1 "general_operand"))] "" {@ [cons: =0, 1; attrs: type, length, gcn_version] - [v,vDB;vmult,16,* ] v_mov_b32\t%L0, %L1\; v_mov_b32\t%H0, %H1\; v_mov_b32\t%J0, %J1\; v_mov_b32\t%K0, %K1 - [v,a ;vmult,32,* ] v_accvgpr_read_b32\t%L0, %L1\; v_accvgpr_read_b32\t%H0, %H1\; v_accvgpr_read_b32\t%J0, %J1\; v_accvgpr_read_b32\t%K0, %K1 - [a,v ;vmult,32,* ] v_accvgpr_write_b32\t%L0, %L1\;v_accvgpr_write_b32\t%H0, %H1\;v_accvgpr_write_b32\t%J0, %J1\;v_accvgpr_write_b32\t%K0, %K1 - [a,a ;vmult,32,cdna2] v_accvgpr_mov_b32\t%L0, %L1\; v_accvgpr_mov_b32\t%H0, %H1\; v_accvgpr_mov_b32\t%J0, %J1\; v_accvgpr_mov_b32\t%K0, %K1 + [v ,vDB;vmult,16,* ] v_mov_b32\t%L0, %L1\; v_mov_b32\t%H0, %H1\; v_mov_b32\t%J0, %J1\; v_mov_b32\t%K0, %K1 + [v ,a ;vmult,32,* ] v_accvgpr_read_b32\t%L0, %L1\; v_accvgpr_read_b32\t%H0, %H1\; v_accvgpr_read_b32\t%J0, %J1\; v_accvgpr_read_b32\t%K0, %K1 + [$a,v ;vmult,32,* ] v_accvgpr_write_b32\t%L0, %L1\;v_accvgpr_write_b32\t%H0, %H1\;v_accvgpr_write_b32\t%J0, %J1\;v_accvgpr_write_b32\t%K0, %K1 + [a ,a ;vmult,32,cdna2] v_accvgpr_mov_b32\t%L0, %L1\; v_accvgpr_mov_b32\t%H0, %H1\; v_accvgpr_mov_b32\t%J0, %J1\; v_accvgpr_mov_b32\t%K0, %K1 }) (define_insn "mov_exec"