Bug 133 – [C/C++] Bogus warning about taking the address of 'register' variable

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Details

Summary:

[C/C++] Bogus warning about taking the address of 'regist...

Bug#:	133
Product:	tools
Component:	llvm-gcc
Status:	RESOLVED
Resolution:	FIXED

Hardware:	All
OS:	All
Version:	1.0
Priority:	P2
Severity:	minor
Target Milestone:	1.1

URL:

Keywords:

quality-of-implementation

Depends on:

Blocks:

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People

Reporter:	Chris Lattner <sabre@nondot.org>
Assigned To:	Chris Lattner <sabre@nondot.org>

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Description:	Opened: 2003-11-19 13:36

The C/C++ front-end spits this out:

Lexer.cpp:1412: warning: address requested for `yy_cp', which is declared `register'

Even though we _are not_ taking the address of a register variable.

-Chris

------- Comment #1 From Chris Lattner 2003-11-19 15:33:50 -------

Here's a testcase:

struct item {
  short delta[4];
};

int TEST(int nt) {
 register struct item *aa;
 aa[nt].delta;
 return 1;
}

------- Comment #2 From Chris Lattner 2003-11-19 15:38:14 -------

Fixed.

Testcase here: CFrontend/2003-11-19-AddressOfRegister.c.tr

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