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Sanity check that 'Init' doesn't appear without 'Var' in '*.opt' files

Message ID 87tuk6k6zu.fsf@dem-tschwing-1.ger.mentorg.com
State New
Headers show
Series Sanity check that 'Init' doesn't appear without 'Var' in '*.opt' files | expand

Commit Message

Thomas Schwinge Aug. 3, 2021, 1:11 p.m. UTC 
Hi!

Is the attached OK to push?

No violations found per:

    $ find -type f -name \*.opt | xargs grep -F 'Init(' | grep -v -F 'Var('

..., and manually verified the error condition.


Grüße
 Thomas


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Comments

Joseph Myers Aug. 3, 2021, 7:34 p.m. UTC | #1 
On Tue, 3 Aug 2021, Thomas Schwinge wrote:

> Hi!
> 
> Is the attached OK to push?
> 
> No violations found per:
> 
>     $ find -type f -name \*.opt | xargs grep -F 'Init(' | grep -v -F 'Var('
> 
> ..., and manually verified the error condition.

OK.
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Patch

From 67b88991c4a37e63bfecd9a0a17d9d7561b23dce Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <thomas@codesourcery.com>
Date: Tue, 3 Aug 2021 14:59:56 +0200
Subject: [PATCH] Sanity check that 'Init' doesn't appear without 'Var' in
 '*.opt' files

... as that doesn't make sense.

    @item Init(@var{value})
    The variable specified by the @code{Var} property should be statically
    initialized to @var{value}.  [...]

	gcc/
	* optc-gen.awk: Sanity check that 'Init' doesn't appear without
	'Var'.
---
 gcc/optc-gen.awk | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/gcc/optc-gen.awk b/gcc/optc-gen.awk
index 880ac776d8a..77e598efd60 100644
--- a/gcc/optc-gen.awk
+++ b/gcc/optc-gen.awk
@@ -195,10 +195,14 @@  for (i = 0; i < n_extra_vars; i++) {
 }
 for (i = 0; i < n_opts; i++) {
 	name = var_name(flags[i]);
-	if (name == "")
+	init = opt_args("Init", flags[i])
+
+	if (name == "") {
+		if (init != "")
+		    print "#error " opts[i] " must specify Var to use Init"
 		continue;
+	}
 
-	init = opt_args("Init", flags[i])
 	if (init != "") {
 		if (name in var_init && var_init[name] != init)
 			print "#error multiple initializers for " name
-- 
2.25.1