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From: Jonathan Wakely <jwakely.gcc@gmail.com>
Date: Sat, 11 Apr 2020 22:22:10 +0100
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Subject: =?UTF-8?Q?Re=3A_High_memory_usage_compiling_large_=E2=80=98xxd_=2Di=E2=80=99_o?=
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To: "relliott@umn.edu" <relliott@umn.edu>
Cc: gcc-help <gcc-help@gcc.gnu.org>
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On Sat, 11 Apr 2020 at 21:04, relliott--- via Gcc-help
<gcc-help@gcc.gnu.org> wrote:
>
> Hello,
>
> I=E2=80=99m seeing gcc memory usage exceed 15GB when compiling a source f=
ile generated from the command:
>
> % xxd -i file.txt
>
> where =E2=80=98file.txt=E2=80=99 is a 170MB file.
>
> Is there a way to avoid this high memory usage?  Can anyone explain why i=
t occurs?

Because the compiler is parsing an array initializer with millions of eleme=
nts.