Landing: 60623805437f

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Project / Subsystem

gcc / statistics

Date

2026-08-01

Author

Lewis Hyatt

Commit

60623805437fc74e8e0e90b92d86f181f5ab5ba2

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: statistics
patch_id: —
commit_hash: 60623805437fc74e8e0e90b92d86f181f5ab5ba2
source_type: github
headline: Fix detailed memory stats for PCH
tldr: Resolves failures in PCH tests when detailed memory statistics are enabled.
author: Lewis Hyatt
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • bugfix
• statistics
• PCH
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/60623805437fc74e8e0e90b92d86f181f5ab5ba2
date: 2026-08-01T00:00:00.000Z

This commit fixes an issue where GCC’s detailed memory statistics gathering (--enable-gather-detailed-mem-stats) caused tests involving Precompiled Headers (PCH) to fail. The problem occurred because the statistics infrastructure did not recognize GGC’d objects loaded after a PCH restore, leading to errors in mem_alloc_description::release_object_overhead. The fix ensures these unknown objects are ignored, preventing test failures.