This patch removes code to fix the v0 register in gcn_conditional_register_usage that was missed out of the previous patch removing the need for that:
https://gcc.gnu.org/pipermail/gcc-patches/2019-November/534284.html Tested with standalone AMD GCN target. I will commit shortly. Julian 2021-01-13 Julian Brown <jul...@codesourcery.com> gcc/ * config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code to fix v0 register. --- gcc/config/gcn/gcn.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/gcc/config/gcn/gcn.c b/gcc/config/gcn/gcn.c index 630ce4eebc7..b08f4b32c9c 100644 --- a/gcc/config/gcn/gcn.c +++ b/gcc/config/gcn/gcn.c @@ -2137,10 +2137,6 @@ gcn_conditional_register_usage (void) fixed_regs[cfun->machine->args.reg[WORK_ITEM_ID_Y_ARG]] = 1; if (cfun->machine->args.reg[WORK_ITEM_ID_Z_ARG] >= 0) fixed_regs[cfun->machine->args.reg[WORK_ITEM_ID_Z_ARG]] = 1; - - if (TARGET_GCN5_PLUS) - /* v0 is always zero, for global nul-offsets. */ - fixed_regs[VGPR_REGNO (0)] = 1; } /* Determine if a load or store is valid, according to the register classes -- 2.29.2
