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From: Alan Modra <amodra@gmail.com>
To: gcc-patches@gcc.gnu.org
Cc: Segher Boessenkool <segher@kernel.crashing.org>,
	David Edelsohn <dje.gcc@gmail.com>
Subject: [RS6000] fix rtl checking internal compiler error
Date: Thu, 01 Dec 2016 06:35:00 -0000	[thread overview]
Message-ID: <20161201063456.GF4829@bubble.grove.modra.org> (raw)

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

             reply	other threads:[~2016-12-01  6:35 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-01  6:35 Alan Modra [this message]
2016-12-01 14:29 ` Bill Schmidt

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