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[CAS] Consolidate compile cache flags

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Rename `-enable-cas` to `-compile-cache-job` to align with clang option
names and promote that to a new driver only flag.

Few other additions to driver flag for caching behaviors:
* `-compile-cache-remarks`: now cache hit/miss remarks are guarded behind
  this flag
* `-compile-cache-skip`: skip replaying from the cache. Useful as a
  debugging tool to do the compilation using CAS inputs even the output
  is a hit from the cache.
This commit is contained in:
Steven Wu
2023-06-23 09:20:57 -07:00
parent 744e01ea47
commit b78b569450
24 changed files with 104 additions and 82 deletions
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6
lib/FrontendTool/FrontendTool.cpp
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@@ -1394,7 +1394,8 @@ static bool performAction(CompilerInstance &Instance,
/// Return true if all the outputs are fetched from cache. Otherwise, return
/// false and will not replay any output.
static bool tryReplayCompilerResults(CompilerInstance &Instance) {
if (!Instance.supportCaching())
if (!Instance.supportCaching() ||
Instance.getInvocation().getFrontendOptions().CacheSkipReplay)
return false;
assert(Instance.getCompilerBaseKey() &&
@@ -1409,7 +1410,8 @@ static bool tryReplayCompilerResults(CompilerInstance &Instance) {
bool replayed = replayCachedCompilerOutputs(
Instance.getObjectStore(), Instance.getActionCache(),
*Instance.getCompilerBaseKey(), Instance.getDiags(),
Instance.getInvocation().getFrontendOptions().InputsAndOutputs, *CDP);
Instance.getInvocation().getFrontendOptions().InputsAndOutputs, *CDP,
Instance.getInvocation().getFrontendOptions().EnableCachingRemarks);
// If we didn't replay successfully, re-start capture.
if (!replayed)