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libbacktrace patch committed: Minor decompression improvement

From: Ian Lance Taylor <iant at golang dot org>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Thu, 5 Oct 2017 09:39:44 -0700
Subject: libbacktrace patch committed: Minor decompression improvement
Authentication-results: sourceware.org; auth=none

I've committed a patch to libbacktrace to speed up decompression a few
percent by loading 32-bit values rather than 8-bit bytes.
Bootstrapped and ran libbacktrace and Go tests on x86_64-pc-linux-gnu.
Committed to mainline.

Ian

2017-10-05  Ian Lance Taylor  <iant@golang.org>

* elf.c (elf_zlib_fetch): Change pval argument to uint64_t *.
Read a four byte integer.
(elf_zlib_inflate): Change val to uint64_t.  Align pin to a 32-bit
boundary before ever calling elf_zlib_fetch.
* ztest.c (test_large): Simplify print statements a bit.

Attachment: patch.txt
Description: Text document

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