Hi,
On Fri, Sep 07, 2018 at 03:13:10PM -0700, Vineet Gupta wrote:
> helps gcc with better instruction selections such as 64-bit multiply MPYD
>
> before
> ------
> 82c34b58 <sched_clock>:
> 82c34b58: ld r2,[0x83068d00]
> 82c34b60: add_s r2,r2,0x7530
> 82c34b66: mov_s r0,0x989680
> 82c34b6c: mpymu r5,r2,r0
> 82c34b70: mpy r4,r2,r0
> 82c34b74: mov_s r0,r4
> 82c34b76: j_s.d [blink]
> 82c34b78: mov_s r1,r5
> 82c34b7a: nop_s
>
> after
> ------
> 82c34b7c <sched_clock>:
> 82c34b7c: ld r0,[0x83064d00]
> 82c34b84: add_s r0,r0,0x7530
> 82c34b8a: mpydu r0,r0,0x989680
> 82c34b92: j_s [blink]
>
> Signed-off-by: Vineet Gupta <vgupta at synopsys.com>
This patch causes my arc2 test builds to fail
Building arc:axs103_defconfig ... failed
--------------
Error log:
standard input}: Assembler messages:
{standard input}:154: Error: inappropriate arguments for opcode 'st'
{standard input}:157: Error: Insn j_s has a jump/branch instruction j_s in its delay slot.
{standard input}:186: Error: inappropriate arguments for opcode 'st'
make[3]: *** [net/core/dev.o] Error 1
make[2]: *** [net/core] Error 2
Building arc:nsim_hs_smp_defconfig ... failed
--------------
Error log:
{standard input}: Assembler messages:
{standard input}:218: Error: inappropriate arguments for opcode 'st'
{standard input}:9329: Error: inappropriate arguments for opcode 'st'
Building arc:vdk_hs38_smp_defconfig ... failed
--------------
Error log:
{standard input}: Assembler messages:
{standard input}:9629: Error: inappropriate arguments for opcode 'st'
{standard input}:9883: Error: inappropriate arguments for opcode 'st'
I use a toolchain based on gcc 7.3.0 and binutils 2.30. What version
of gcc and binutils do I need for the builds to complete ?
Thanks,
Guenter
