From a971faaf8fb48acbf48ca800634fc78a27581517 Mon Sep 17 00:00:00 2001 From: Claudiu Zissulescu Date: Wed, 26 Jun 2019 17:53:51 +0300 Subject: [PATCH] [ARC] Fix emitting TLS symbols. When storing a TLS symbol to memory, always use an intermediate register to load it. Otherwise compiler generates instruction which couldn't be encoded and we see: ----------------------------->8--------------------------- In file included from gethstent_r.c:34: ../nss/getXXent_r.c: In function '__gethostent_r': ../nss/getXXent_r.c:168:1: error: unrecognizable insn: } ^ (insn 25 24 26 5 (set (mem:SI (plus:SI (reg/f:SI 149 virtual-outgoing-args) (const_int 16 [0x10])) [0 S4 A32]) (plus:SI (reg:SI 25 r25) (reg:SI 174))) "../nss/getXXent_r.c":160 -1 (nil)) during RTL pass: vregs ../nss/getXXent_r.c:168:1: internal compiler error: in extract_insn, at recog.c:2304 In file included from getnetent_r.c:34: ../nss/getXXent_r.c: In function '__getnetent_r': ../nss/getXXent_r.c:168:1: error: unrecognizable insn: } ^ (insn 25 24 26 5 (set (mem:SI (plus:SI (reg/f:SI 149 virtual-outgoing-args) (const_int 16 [0x10])) [0 S4 A32]) (plus:SI (reg:SI 25 r25) (reg:SI 174))) "../nss/getXXent_r.c":160 -1 (nil)) during RTL pass: vregs ../nss/getXXent_r.c:168:1: internal compiler error: in extract_insn, at recog.c:2304 ----------------------------->8--------------------------- Note this patch is not yet submitted to the GCC's master and gcc-9-branch but will be submitted soon. That said with bump of GCC for ARC this patch won't be needed any longer. Signed-off-by: Claudiu Zissulescu Signed-off-by: Alexey Brodkin --- gcc/config/arc/arc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c index 8b544efaa11..989bec703df 100644 --- a/gcc/config/arc/arc.c +++ b/gcc/config/arc/arc.c @@ -9068,7 +9068,7 @@ prepare_move_operands (rtx *operands, machine_mode mode) if (GET_CODE (operands[1]) == SYMBOL_REF) { enum tls_model model = SYMBOL_REF_TLS_MODEL (operands[1]); - if (MEM_P (operands[0]) && flag_pic) + if (MEM_P (operands[0])) operands[1] = force_reg (mode, operands[1]); else if (model) operands[1] = arc_legitimize_tls_address (operands[1], model); -- 2.16.2