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Re: Generating RTL for function call sequences from GIMPLE

From: "Richard Guenther" <richard dot guenther at gmail dot com>
To: "Dave Korn" <dave dot korn at artimi dot com>
Cc: gcc at gcc dot gnu dot org
Date: Mon, 9 Apr 2007 20:40:28 +0200
Subject: Re: Generating RTL for function call sequences from GIMPLE
References: <001d01c77ad6$2396bda0$2e08a8c0@CAM.ARTIMI.COM>

On 4/9/07, Dave Korn <dave.korn@artimi.com> wrote:

Evening all, just a quick question:

[ ref: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31513, "
[4.2/4.3 Regression] Miscompilation of Function Passing Bit Field Value to
Function" ]


  Should promotion of function arguments be explicitly represented in GIMPLE,
or should it be performed when generating the corresponding RTL?  It doesn't
appear to be taking place correctly for the <unnamed type>s used to represent
bitfields.

There is a conversion missing on the tree level. See also PR31136.

Richard.

References:
- Generating RTL for function call sequences from GIMPLE
  - From: Dave Korn

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