[PATCH] bpf: fix zero_extendqidi2 ldx template

[David Faust]

Commit 77d0f9ec3809b4d2e32c36069b6b9239d301c030 inadvertently changed
the normal asm dialect instruction template for zero_extendqidi2 from
ldxb to ldxh. Fix that.

Tested for bpf-unknown-none on x86_64-linux-gnu host.

gcc/

* config/bpf/bpf.md (zero_extendqidi2): Correct asm template to
use ldxb instead of ldxh.
---
 gcc/config/bpf/bpf.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/bpf/bpf.md b/gcc/config/bpf/bpf.md
index 080a63cd970..50df1aaa3e2 100644
--- a/gcc/config/bpf/bpf.md
+++ b/gcc/config/bpf/bpf.md
@@ -292,7 +292,7 @@ (define_insn "zero_extendqidi2"
   "@
{and\t%0,0xff|%0 &= 0xff}
{mov\t%0,%1\;and\t%0,0xff|%0 = %1;%0 &= 0xff}
-   {ldxh\t%0,%1|%0 = *(u8 *) (%1)}"
+   {ldxb\t%0,%1|%0 = *(u8 *) (%1)}"
   [(set_attr "type" "alu,alu,ldx")])
 
 (define_insn "zero_extendsidi2"
-- 
2.43.0

Re: [PATCH] bpf: fix zero_extendqidi2 ldx template

[Jose E. Marchesi]

Hi Faust.
OK, thank you.

> Commit 77d0f9ec3809b4d2e32c36069b6b9239d301c030 inadvertently changed
> the normal asm dialect instruction template for zero_extendqidi2 from
> ldxb to ldxh. Fix that.
>
> Tested for bpf-unknown-none on x86_64-linux-gnu host.
>
> gcc/
>
>   * config/bpf/bpf.md (zero_extendqidi2): Correct asm template to
>   use ldxb instead of ldxh.
> ---
>  gcc/config/bpf/bpf.md | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/config/bpf/bpf.md b/gcc/config/bpf/bpf.md
> index 080a63cd970..50df1aaa3e2 100644
> --- a/gcc/config/bpf/bpf.md
> +++ b/gcc/config/bpf/bpf.md
> @@ -292,7 +292,7 @@ (define_insn "zero_extendqidi2"
>"@
> {and\t%0,0xff|%0 &= 0xff}
> {mov\t%0,%1\;and\t%0,0xff|%0 = %1;%0 &= 0xff}
> -   {ldxh\t%0,%1|%0 = *(u8 *) (%1)}"
> +   {ldxb\t%0,%1|%0 = *(u8 *) (%1)}"
>[(set_attr "type" "alu,alu,ldx")])
>  
>  (define_insn "zero_extendsidi2"