GCC on HP-PA RISC

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Article #41858

#41858

From: Christian Hagmann
Date: Thu, 08 Feb 1996 00:00

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Hello

I use the gcc 2.7.2 and it is installed on an HP9000/735. This 
machine includes the pa-risc 1.1 Instruction Set which is supported
by the gcc 2.7.2 (as seen in the gcc-info and man page). In the pa-
risc 1.1 Instruction Set the multiply-add for floating-point data
(FMPYADD) is specified. I never get FMPYADDs if I compile my c code with
gcc, but if I compile the same c code with the C-Compiler from HP then I
can see a lot of FMPYADDs in the assembler code. 

So, is this a bug in the gcc or does the gcc NOT support pa-risc 1.1 
instructions?
Does anybody know how I can tell the gcc to use the FMPYADD instruction?

Any hint would be great!

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From: Christian Hagmann <chagmann@stud.ee.ethz.ch>
Subject: GCC on HP-PA RISC
Date: 1996/02/08
Message-ID: <3119DDB4.375@stud.ee.ethz.ch>
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