From: Richard Sandiford <richard.sandiford@arm.com>
Date: Wed, 21 May 2025 09:01:30 +0000 (+0100)
Subject: genemit: Remove purported handling of location_ts
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=efbc8de515c71c27e881d425f8325e39f7b4f328;p=thirdparty%2Fgcc.git

genemit: Remove purported handling of location_ts

gen_exp had code to handle the 'L' operand format.  But this format
is specifically for location_ts, which are only used in RTX_INSNs.
Those should never occur in this context, where the input is always
an md file rather than an __RTL function.  Any hard-coded raw
location value would be meaningless anyway.

It seemed safer to turn this into an error rather than a gcc_unreachable.

gcc/
	* genemit.cc (generator::gen_exp): Raise an error if we see
	an 'L' operand.
---

diff --git a/gcc/genemit.cc b/gcc/genemit.cc
index 0529b916455..9923cf078b9 100644
--- a/gcc/genemit.cc
+++ b/gcc/genemit.cc
@@ -270,7 +270,8 @@ generator::gen_exp (rtx x)
 	  break;
 
 	case 'L':
-	  fprintf (file, "%llu", (unsigned long long) XLOC (x, i));
+	  fatal_at (info.loc, "'%s' rtxes are not supported in this context",
+		    GET_RTX_NAME (code));
 	  break;
 
 	case 'r':