Remove unnecessary tests before copying function address to r12, as
requested by Segher.
Bootstrapped and tested on powerpc64le-unknown-linx-gnu with no
regressions, committed as obvious.
Thanks,
Bill
2020-08-28 Bill Schmidt <wschm...@linux.ibm.com>
gcc/
* config/rs6000/rs6000.c (rs6000_call_aix): Remove test for r12.
(rs6000_sibcall_aix): Likewise.
---
gcc/config/rs6000/rs6000.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 09545278dcf..ca5b71ecdd3 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -24725,8 +24725,7 @@ rs6000_call_aix (rtx value, rtx func_desc, rtx tlsarg,
rtx cookie)
/* A function pointer in the ELFv2 ABI is just a plain address, but
the ABI requires it to be loaded into r12 before the call. */
func_addr = gen_rtx_REG (Pmode, 12);
- if (!rtx_equal_p (func_addr, func))
- emit_move_insn (func_addr, func);
+ emit_move_insn (func_addr, func);
abi_reg = func_addr;
/* Indirect calls via CTR are strongly preferred over indirect
calls via LR, so move the address there. Needed to mark
@@ -24846,8 +24845,7 @@ rs6000_sibcall_aix (rtx value, rtx func_desc, rtx
tlsarg, rtx cookie)
if (GET_CODE (func_desc) != SYMBOL_REF && DEFAULT_ABI == ABI_ELFv2)
{
r12 = gen_rtx_REG (Pmode, 12);
- if (!rtx_equal_p (r12, func_desc))
- emit_move_insn (r12, func_desc);
+ emit_move_insn (r12, func_desc);
func_addr = gen_rtx_REG (Pmode, CTR_REGNO);
emit_move_insn (func_addr, r12);
}
--
2.17.1
