diff options
author | Erik Verbruggen <erik.verbruggen@qt.io> | 2018-10-09 14:58:01 +0200 |
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committer | Erik Verbruggen <erik.verbruggen@qt.io> | 2019-01-25 10:26:13 +0000 |
commit | 784a55a15ddc65b59cc4709e54453238438eae48 (patch) | |
tree | 2903e0c690a8aef0b49f3e5d6c26ef4ac90543aa /src/qml/jsruntime/qv4global_p.h | |
parent | 923fef3ad3076e337eba4e603a6f759c54cc404c (diff) |
V4: Collect trace information in the interpreter
Collect type information about values used in a function. These include
all parameters, and the results of many bytecode instructions. For array
loads/stores, it also tracks if the access is in-bounds of a
SimpleArrayData.
Collection is only enabled when the qml-tracing feature is turned on
while configuring.
In subsequent patches this is used to generated optimized JITted code.
Change-Id: I63985c334c3fdc55fca7fb4addfe3e535989aac5
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Diffstat (limited to 'src/qml/jsruntime/qv4global_p.h')
-rw-r--r-- | src/qml/jsruntime/qv4global_p.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4global_p.h b/src/qml/jsruntime/qv4global_p.h index 162fb66cba..44adac26cd 100644 --- a/src/qml/jsruntime/qv4global_p.h +++ b/src/qml/jsruntime/qv4global_p.h @@ -279,6 +279,20 @@ struct IdentifierTable; class RegExpCache; class MultiplyWrappedQObjectMap; +enum class ObservedTraceValues : quint8 { + Integer = 1 << 0, + Boolean = 1 << 1, + Double = 1 << 2, + Other = 1 << 3, + TypeMask = Integer | Boolean | Double | Other, + + TruePathTaken = 1 << 0, + FalsePathTaken = 1 << 1, + + ArrayWasAccessed = 1 << 7, + ArrayAccessNeededFallback = 1 << 6, +}; + enum PropertyFlag { Attr_Data = 0, Attr_Accessor = 0x1, |