Update compiler_builtins to 0.1.78

[nicholasbishop]

Among other things, this pulls in rust-lang/compiler-builtins#475, which fixes some i128/u128 arithmetic operations on the x86_64-unknown-uefi target.

[rust-highfive]

r? @Mark-Simulacrum

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[Mark-Simulacrum]

@bors r+ rollup=never

[bors]

📌 Commit 3c43203 has been approved by Mark-Simulacrum

It is now in the queue for this repository.

[bors]

⌛ Testing commit 3c43203 with merge d394408...

[bors]

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing d394408 to master...

[rust-timer]

Finished benchmarking commit (d394408): comparison url.

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

• Primary benchmarks: 🎉 relevant improvement found
• Secondary benchmarks: 😿 relevant regression found

	mean1	max	count2
Regressions 😿 (primary)	N/A	N/A	0
Regressions 😿 (secondary)	2.0%	2.0%	1
Improvements 🎉 (primary)	-3.4%	-3.4%	1
Improvements 🎉 (secondary)	N/A	N/A	0
All 😿🎉 (primary)	-3.4%	-3.4%	1

Cycles

Results

• Primary benchmarks: mixed results
• Secondary benchmarks: 😿 relevant regression found

	mean1	max	count2
Regressions 😿 (primary)	2.1%	2.1%	1
Regressions 😿 (secondary)	7.0%	7.0%	1
Improvements 🎉 (primary)	-2.1%	-2.2%	2
Improvements 🎉 (secondary)	N/A	N/A	0
All 😿🎉 (primary)	-0.7%	-2.2%	3

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

Footnotes

1. the arithmetic mean of the percent change ↩ ↩²

2. number of relevant changes ↩ ↩²