diff mbox

tcg/tci: enable bswap16_i64

Message ID 20170610223135.1731-1-f4bug@amsat.org
State New
Headers show

Commit Message

Philippe Mathieu-Daudé June 10, 2017, 10:31 p.m. UTC
remove some copy/paste leftover, code seems sane.

while running Alex Bennée's image aarch64-linux-3.15rc2-buildroot.img:

Trace 0x7fa1904b0890 [0: ffffffc00036cd04]
----------------
IN:
0xffffffc00036cd24:  5ac00694      rev16 w20, w20

OP:
 ---- ffffffc00036cd24 0000000000000000 0000000000000000
 ext32u_i64 tmp3,x20
 ext16u_i64 tmp2,tmp3
 bswap16_i64 x20,tmp2
 movi_i64 tmp4,$0x10
 shr_i64 tmp2,tmp3,tmp4
 ext16u_i64 tmp2,tmp2
 bswap16_i64 tmp2,tmp2
 deposit_i64 x20,x20,tmp2,$0x10,$0x10

Linking TBs 0x7fa1904b0890 [ffffffc00036cd04] index 0 -> 0x7fa1904b0aa0 [ffffffc00036cd24]
Trace 0x7fa1904b0aa0 [0: ffffffc00036cd24]
TODO qemu/tci.c:1049: tcg_qemu_tb_exec()
qemu/tci.c:1049: tcg fatal error
Aborted

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---

there is no entry in MAINTAINERS for this file, I think it should it go under:
"Tiny Code Generator (TCG) / Common code"

 tci.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Alex Bennée June 13, 2017, 7:11 p.m. UTC | #1
Philippe Mathieu-Daudé <f4bug@amsat.org> writes:

> remove some copy/paste leftover, code seems sane.
>
> while running Alex Bennée's image aarch64-linux-3.15rc2-buildroot.img:
>
> Trace 0x7fa1904b0890 [0: ffffffc00036cd04]
> ----------------
> IN:
> 0xffffffc00036cd24:  5ac00694      rev16 w20, w20
>
> OP:
>  ---- ffffffc00036cd24 0000000000000000 0000000000000000
>  ext32u_i64 tmp3,x20
>  ext16u_i64 tmp2,tmp3
>  bswap16_i64 x20,tmp2
>  movi_i64 tmp4,$0x10
>  shr_i64 tmp2,tmp3,tmp4
>  ext16u_i64 tmp2,tmp2
>  bswap16_i64 tmp2,tmp2
>  deposit_i64 x20,x20,tmp2,$0x10,$0x10
>
> Linking TBs 0x7fa1904b0890 [ffffffc00036cd04] index 0 -> 0x7fa1904b0aa0 [ffffffc00036cd24]
> Trace 0x7fa1904b0aa0 [0: ffffffc00036cd24]
> TODO qemu/tci.c:1049: tcg_qemu_tb_exec()
> qemu/tci.c:1049: tcg fatal error
> Aborted
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Possibly the only person who has run tci recently ;-)

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

> ---
>
> there is no entry in MAINTAINERS for this file, I think it should it go under:
> "Tiny Code Generator (TCG) / Common code"
>
>  tci.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/tci.c b/tci.c
> index 4bdc645f2a..f39bfb95c0 100644
> --- a/tci.c
> +++ b/tci.c
> @@ -1046,7 +1046,6 @@ uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
>              break;
>  #if TCG_TARGET_HAS_bswap16_i64
>          case INDEX_op_bswap16_i64:
> -            TODO();
>              t0 = *tb_ptr++;
>              t1 = tci_read_r16(&tb_ptr);
>              tci_write_reg64(t0, bswap16(t1));


--
Alex Bennée
Richard Henderson June 19, 2017, 9:35 p.m. UTC | #2
On 06/13/2017 12:11 PM, Alex Bennée wrote:
> 
> Philippe Mathieu-Daudé <f4bug@amsat.org> writes:
> 
>> remove some copy/paste leftover, code seems sane.
>>
>> while running Alex Bennée's image aarch64-linux-3.15rc2-buildroot.img:
>>
>> Trace 0x7fa1904b0890 [0: ffffffc00036cd04]
>> ----------------
>> IN:
>> 0xffffffc00036cd24:  5ac00694      rev16 w20, w20
>>
>> OP:
>>   ---- ffffffc00036cd24 0000000000000000 0000000000000000
>>   ext32u_i64 tmp3,x20
>>   ext16u_i64 tmp2,tmp3
>>   bswap16_i64 x20,tmp2
>>   movi_i64 tmp4,$0x10
>>   shr_i64 tmp2,tmp3,tmp4
>>   ext16u_i64 tmp2,tmp2
>>   bswap16_i64 tmp2,tmp2
>>   deposit_i64 x20,x20,tmp2,$0x10,$0x10
>>
>> Linking TBs 0x7fa1904b0890 [ffffffc00036cd04] index 0 -> 0x7fa1904b0aa0 [ffffffc00036cd24]
>> Trace 0x7fa1904b0aa0 [0: ffffffc00036cd24]
>> TODO qemu/tci.c:1049: tcg_qemu_tb_exec()
>> qemu/tci.c:1049: tcg fatal error
>> Aborted
>>
>> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> 
> Possibly the only person who has run tci recently ;-)

Is it time to remove it?  I'm pretty sure the only hosts for which it will work 
have proper backends...


r~
diff mbox

Patch

diff --git a/tci.c b/tci.c
index 4bdc645f2a..f39bfb95c0 100644
--- a/tci.c
+++ b/tci.c
@@ -1046,7 +1046,6 @@  uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
             break;
 #if TCG_TARGET_HAS_bswap16_i64
         case INDEX_op_bswap16_i64:
-            TODO();
             t0 = *tb_ptr++;
             t1 = tci_read_r16(&tb_ptr);
             tci_write_reg64(t0, bswap16(t1));