This switches full-codegen to no longer push and pop StackHandler
markers onto the operand stack, but relies on a range-based handler
table instead. We only use StackHandlers in JSEntryStubs to mark the
transition from C to JS code.
Note that this makes deoptimization and OSR from within any try-block
work out of the box, makes the non-exception paths faster and should
overall be neutral on the memory footprint (pros).
On the other hand it makes the exception paths slower and actually
throwing and exception more expensive (cons).
R=yangguo@chromium.org
TEST=cctest/test-run-jsexceptions/DeoptTry
Review URL: https://codereview.chromium.org/1010883002
Cr-Commit-Position: refs/heads/master@{#27440}
This makes sure that any pending message is saved before entering
and restored after exiting a finally block. It also makes sure that
operand stacks are kept in sync to full-codegen.
R=bmeurer@chromium.org
TEST=cctest/test-run-jsexceptions/ThrowMessage
Review URL: https://codereview.chromium.org/979173002
Cr-Commit-Position: refs/heads/master@{#27036}
This extends the stack unwinding logic to respect optimized frames
and perform a lookup in the handler table to find handlers. It also
contains fixes to the API call stubs to allow a stack walk while
promoting scheduled exceptions.
R=jarin@chromium.org
TEST=cctest/test-run-jsexceptions
Review URL: https://codereview.chromium.org/969533004
Cr-Commit-Position: refs/heads/master@{#27016}
This just contains test, no fixes. Note that some of the tests are
still disabled because they either fail or we don't want ClusterFuzz
to pick up the flag yet.
R=jarin@chromium.org
TEST=cctest/test-run-jsexceptions/Deopt,mjsunit/compiler/try-deopt
Review URL: https://codereview.chromium.org/972943004
Cr-Commit-Position: refs/heads/master@{#26968}
