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Re: honoring gcc test stack size

From: Hans-Peter Nilsson
Subject: Re: honoring gcc test stack size
Date: Tue, 12 Feb 2008 23:25:51 +0100

> Date: Tue, 12 Feb 2008 15:47:14 -0600
> From: Joel Sherrill <address@hidden>

> I investigated one failure: pr20621-1.x3

You mean gcc/testsuite/gcc.c-torture/execute/pr20621-1.c at -O3?
>From the looks of it, it would take about 2*0x4000*4 bytes stack.

> and discovered that it is using a LOT

#define LOT ?

> of stack.  I don't know what the stack
> size limit parameter you gave me is supposed
> to do.

Have a look at the source and the test-cases. ;)
Hint: gcc/testsuite/lib/gcc.exp:gcc_target_compile.
Apparently gcc/testsuite/gcc.c-torture/execute/pr20621-1.c
doesn't use it.  I guess it should.

> I increased the init task's stack to 128K
> and that one passed. 

Aha, so a LOT < 128K! :)

(I know, I've been there too, some time ago.
Though these days a MB is "meh".)

brgds, H-P

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