Changes between Version 15 and Version 16 of Commentary/Profiling

Timestamp:

02/28/13 15:24:19 (4 months ago)

Author:

ezyang

Comment:

--

Commentary/Profiling

@@ -14 +14 @@
  * Front-end support in [[GhcFile(compiler/deSugar/DsExpr.lhs)]], for converting {{{SCC}}} pragma into the {{{Tick}}} constructor in Core.
  * Modifications to optimization behavior in [[GhcFile(compiler/coreSyn/CoreUtils.lhs)]] and [[GhcFile(compiler/coreSyn/CorePrep.lhs)]] to prevent optimizations which would result in misleading profile information. Most of this is to handle the fact that SCCs also count entries (tickishCounts, also applies to [wiki:Commentary/Hpc]); otherwise the only relevant optimization is avoiding floating expressions out of SCCs.
- * The {{{StgSCC}}} constructor in STG, and code generation for it [[Ghcfile(compiler/codeGen/StgCmmProf.hs)]]
+ * The {{{StgSCC}}} constructor in STG, and code generation for it [[GhcFile(compiler/codeGen/StgCmmProf.hs)]]
  * A pass over STG in [[GhcFile(compiler/profiling/SCCfinal.lhs)]] to collect cost centres so that they can be statically declared by [[GhcFile(compiler/profiling/ProfInit.hs)]], and add extra SCCs in the case of {{{-auto-all}}; see also [[GhcFile(compiler/profiling/NOTES)]]
  * Code-generation for setting labels found in [[GhcFile(compiler/codeGen/StgCmmProf.hs)]], in particular saving and restoring CC labels and well as counting ticks; note that cost-centres even get their own constructor in C-- as CC_Labels (cost-centre labels).