From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Mon, 7 May 2012 18:53:28 +0000 (+0000)
Subject: compiler: fix an ICE when parsing 0xdie, reject token 0x123i.
X-Git-Tag: misc/gccgo-go1_1_2~3039
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=62beea506bd1a5c688e7b88457408411c8272635;p=thirdparty%2Fgcc.git

compiler: fix an ICE when parsing 0xdie, reject token 0x123i.

The lexer used to incorrectly accept a token like 0x123i
and interpreted it as 123i. It also used to die when encountering
0xdie.

From-SVN: r187266
---

diff --git a/gcc/go/gofrontend/lex.cc b/gcc/go/gofrontend/lex.cc
index 53618fc72cad..5b7ce6869e6c 100644
--- a/gcc/go/gofrontend/lex.cc
+++ b/gcc/go/gofrontend/lex.cc
@@ -1012,7 +1012,9 @@ Lex::gather_number()
 	    }
 	}
 
-      if (*p != '.' && *p != 'i' && !Lex::could_be_exponent(p, pend))
+      // A partial token that looks like an octal literal might actually be the
+      // beginning of a floating-point or imaginary literal.
+      if (base == 16 || (*p != '.' && *p != 'i' && !Lex::could_be_exponent(p, pend)))
 	{
 	  std::string s(pnum, p - pnum);
 	  mpz_t val;