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* [PATCH] C-SKY: Fix for gcc.dg/torture/stackalign/builtin-return-2.c.
@ 2021-04-30 13:02 Geng Qi
  2021-05-26  6:38 ` Cooper Qu
  0 siblings, 1 reply; 2+ messages in thread
From: Geng Qi @ 2021-04-30 13:02 UTC (permalink / raw)
  To: gcc-patches, cooper.qu; +Cc: Geng Qi

gcc/ChangeLog:

	* config/csky/csky.md (untyped_call): Emit clobber for return
	registers to mark them used.
---
 gcc/config/csky/csky.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gcc/config/csky/csky.md b/gcc/config/csky/csky.md
index b980d4c..f91d851 100644
--- a/gcc/config/csky/csky.md
+++ b/gcc/config/csky/csky.md
@@ -3258,6 +3258,10 @@
 
   emit_call_insn (gen_call (operands[0], const0_rtx));
 
+  for (int i = 0; i < XVECLEN (operands[2], 0); i++)
+    emit_clobber (SET_SRC (XVECEXP (operands[2], 0, i)));
+  emit_insn (gen_blockage ());
+
   for (i = 0; i < XVECLEN (operands[2], 0); i++)
     {
       rtx set = XVECEXP (operands[2], 0, i);
-- 
2.7.4


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] C-SKY: Fix for gcc.dg/torture/stackalign/builtin-return-2.c.
  2021-04-30 13:02 [PATCH] C-SKY: Fix for gcc.dg/torture/stackalign/builtin-return-2.c Geng Qi
@ 2021-05-26  6:38 ` Cooper Qu
  0 siblings, 0 replies; 2+ messages in thread
From: Cooper Qu @ 2021-05-26  6:38 UTC (permalink / raw)
  To: Geng Qi, gcc-patches

Pushed.

On 4/30/21 9:02 PM, Geng Qi wrote:
> gcc/ChangeLog:
>
> 	* config/csky/csky.md (untyped_call): Emit clobber for return
> 	registers to mark them used.
> ---
>   gcc/config/csky/csky.md | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/gcc/config/csky/csky.md b/gcc/config/csky/csky.md
> index b980d4c..f91d851 100644
> --- a/gcc/config/csky/csky.md
> +++ b/gcc/config/csky/csky.md
> @@ -3258,6 +3258,10 @@
>   
>     emit_call_insn (gen_call (operands[0], const0_rtx));
>   
> +  for (int i = 0; i < XVECLEN (operands[2], 0); i++)
> +    emit_clobber (SET_SRC (XVECEXP (operands[2], 0, i)));
> +  emit_insn (gen_blockage ());
> +
>     for (i = 0; i < XVECLEN (operands[2], 0); i++)
>       {
>         rtx set = XVECEXP (operands[2], 0, i);

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2021-04-30 13:02 [PATCH] C-SKY: Fix for gcc.dg/torture/stackalign/builtin-return-2.c Geng Qi
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