diff mbox

[RS6000] fix rtl checking internal compiler error

Message ID 20161201063456.GF4829@bubble.grove.modra.org
State New
Headers show

Commit Message

Alan Modra Dec. 1, 2016, 6:34 a.m. UTC 
I'm committing this one as obvious once my powerpc64le-linux bootstrap
and regression check completes.  It fixes hundreds of rtl checking
testsuite errors like the following:

gcc.c-torture/compile/pr39943.c:6:1: internal compiler error: RTL check: expected elt 0 type 'e' or 'u', have 'E' (rtx unspec) in insn_is_swappable_p, at config/rs6000/rs6000.c:40678

	* gcc/config/rs6000/rs6000.c (insn_is_swappable_p): Properly
	look inside UNSPEC_VSX_XXSPLTW vec.

Comments

Bill Schmidt Dec. 1, 2016, 2:28 p.m. UTC | #1 
Good catch, Alan, this one is my fault.  I'll handle the backports to the 5 and 6 branches.

Bill

> On Dec 1, 2016, at 12:34 AM, Alan Modra <amodra@gmail.com> wrote:
> 
> I'm committing this one as obvious once my powerpc64le-linux bootstrap
> and regression check completes.  It fixes hundreds of rtl checking
> testsuite errors like the following:
> 
> gcc.c-torture/compile/pr39943.c:6:1: internal compiler error: RTL check: expected elt 0 type 'e' or 'u', have 'E' (rtx unspec) in insn_is_swappable_p, at config/rs6000/rs6000.c:40678
> 
> 	* gcc/config/rs6000/rs6000.c (insn_is_swappable_p): Properly
> 	look inside UNSPEC_VSX_XXSPLTW vec.
> 
> diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
> index 9fe98b7..7f307b1 100644
> --- a/gcc/config/rs6000/rs6000.c
> +++ b/gcc/config/rs6000/rs6000.c
> @@ -40675,7 +40675,7 @@ insn_is_swappable_p (swap_web_entry *insn_entry, rtx insn,
> 	    if (GET_CODE (use_body) != SET
> 		|| GET_CODE (SET_SRC (use_body)) != UNSPEC
> 		|| XINT (SET_SRC (use_body), 1) != UNSPEC_VSX_XXSPLTW
> -		|| XEXP (XEXP (SET_SRC (use_body), 0), 1) != const0_rtx)
> +		|| XVECEXP (SET_SRC (use_body), 0, 1) != const0_rtx)
> 	      return 0;
> 	  }
> 	}
> 
> -- 
> Alan Modra
> Australia Development Lab, IBM
>
diff mbox

Patch

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 9fe98b7..7f307b1 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -40675,7 +40675,7 @@  insn_is_swappable_p (swap_web_entry *insn_entry, rtx insn,
 	    if (GET_CODE (use_body) != SET
 		|| GET_CODE (SET_SRC (use_body)) != UNSPEC
 		|| XINT (SET_SRC (use_body), 1) != UNSPEC_VSX_XXSPLTW
-		|| XEXP (XEXP (SET_SRC (use_body), 0), 1) != const0_rtx)
+		|| XVECEXP (SET_SRC (use_body), 0, 1) != const0_rtx)
 	      return 0;
 	  }
 	}