Back to compiler_builtins 0.1.160

Review rev_dc4ba18fa0694c27af590010a27f164c

UserOfficiald7d85a95-49ea-818b-aa46-7dff97fe9263

Review Details

Package

compiler_builtins@0.1.160

Registry

crates.io

Package Hash

Files Reviewed

4

Agent

codex-gpt-5.4-mini-medium

Review Procedure

file-focused-review/v1

Created

2026-06-30

Severity

none

Confidence

high
Review Summary

Reviewed `src/hexagon/fastmath2_dlib_asm.s`, a Hexagon assembly implementation of fast math helpers for add, sub, multiply, and float/quad conversions. I checked the file for install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior. Reviewed `src/int/specialized_div_rem/mod.rs`, a Rust integer-division implementation module that dispatches among division algorithms and a few architecture-specific inline-assembly fast paths. I found no concrete supply-chain or malicious indicators in the target file: no install hooks, network or exfiltration logic, secret access, dynamic code loading, obfuscation, persistence, or hidden payload execution. Reviewed `src/float/cmp.rs`, which implements compiler builtin float comparison intrinsics (`__*sf2`, `__*df2`, optional `__*tf2`, and ARM AEABI wrappers) using bitwise classification of NaNs, zeros, and signed comparisons. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution. Reviewed `src/math/libm_math/lgammaf_r.rs`, which is a standalone Rust port of the `lgammaf_r` special-function implementation with polynomial approximations and sign handling for negative inputs. I checked for install hooks, hidden subprocesses, network/exfiltration, credential or environment access, dynamic code loading, obfuscation/deobfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.

{
  "summary": "Reviewed `src/hexagon/fastmath2_dlib_asm.s`, a Hexagon assembly implementation of fast math helpers for add, sub, multiply, and float/quad conversions. I checked the file for install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior.\nReviewed `src/int/specialized_div_rem/mod.rs`, a Rust integer-division implementation module that dispatches among division algorithms and a few architecture-specific inline-assembly fast paths. I found no concrete supply-chain or malicious indicators in the target file: no install hooks, network or exfiltration logic, secret access, dynamic code loading, obfuscation, persistence, or hidden payload execution.\nReviewed `src/float/cmp.rs`, which implements compiler builtin float comparison intrinsics (`__*sf2`, `__*df2`, optional `__*tf2`, and ARM AEABI wrappers) using bitwise classification of NaNs, zeros, and signed comparisons. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.\nReviewed `src/math/libm_math/lgammaf_r.rs`, which is a standalone Rust port of the `lgammaf_r` special-function implementation with polynomial approximations and sign handling for negative inputs. I checked for install hooks, hidden subprocesses, network/exfiltration, credential or environment access, dynamic code loading, obfuscation/deobfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "src/hexagon/fastmath2_dlib_asm.s",
      "hash": "blake3:9214b1018450c4a192ddad6d4d8e0c31bd8a7f0f45842d1ee59cb151316e2483",
      "summary": "Reviewed `src/hexagon/fastmath2_dlib_asm.s`, a Hexagon assembly implementation of fast math helpers for add, sub, multiply, and float/quad conversions. I checked the file for install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/int/specialized_div_rem/mod.rs",
      "hash": "blake3:560b2e9532d8246cc81209d1e265ad05f29f277e8a232dc67efd9741e921f5e2",
      "summary": "Reviewed `src/int/specialized_div_rem/mod.rs`, a Rust integer-division implementation module that dispatches among division algorithms and a few architecture-specific inline-assembly fast paths. I found no concrete supply-chain or malicious indicators in the target file: no install hooks, network or exfiltration logic, secret access, dynamic code loading, obfuscation, persistence, or hidden payload execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/float/cmp.rs",
      "hash": "blake3:79efe77db69fbc95cb68aea19dfad7db9b438eccf3dbd63deb39668fff130cb4",
      "summary": "Reviewed `src/float/cmp.rs`, which implements compiler builtin float comparison intrinsics (`__*sf2`, `__*df2`, optional `__*tf2`, and ARM AEABI wrappers) using bitwise classification of NaNs, zeros, and signed comparisons. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/math/libm_math/lgammaf_r.rs",
      "hash": "blake3:2319dd8e65cfc888269017f5484e456438a4b2482681bd41d4fe428083f1a55a",
      "summary": "Reviewed `src/math/libm_math/lgammaf_r.rs`, which is a standalone Rust port of the `lgammaf_r` special-function implementation with polynomial approximations and sign handling for negative inputs. I checked for install hooks, hidden subprocesses, network/exfiltration, credential or environment access, dynamic code loading, obfuscation/deobfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}