Commit Graph

5 Commits

Author SHA1 Message Date
Ng Zhi An
820a3bdadf [wasm] Add some more test cases to wasm-trace-memory
We were missing test cases for i16, i64, and f64. It's not super
critical, but it's also an easy addition, and helps bring coverage of
memory-tracing.cc up (close to 100% now).

Change-Id: Ib8433f8615c900d8665ccbc33e12d6fd05d51336
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2121168
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66878}
2020-03-26 17:44:53 +00:00
Ng Zhi An
727668298e [wasm-simd] Implement memory tracing for kSimd128 data types
Increase the embedded vector size to 91 as that is the max size needed to print
a s128 as a 32x4.

- max value of uint32_t has 10 digits in decimal, 1 for a potential sign,
  3 spaces in between 4 of them -> 3 + 4 * 11 = 47
- max value of uint32_t has 8 digits in hex, 3 spaces in between -> 3 + 4 * 8 = 35
- the prefix "v128:" -> 5
- " / " to separate the decimal and hex representation -> 3
- null byte

47 + 35 + 5 + 3 + 1 = 91

Bug: v8:9754
Change-Id: I153c30738fa8862b44fb5103cbe62ea0bcea9718
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1814885
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64256}
2019-10-11 20:45:21 +00:00
Andreas Haas
4498a28231 [wasm] Make the output of --wasm-trace-memory more understandable
R=clemensh@chromium.org

Change-Id: I21d185c73dc22a79311f3b35b2602a00a4b96112
Reviewed-on: https://chromium-review.googlesource.com/1141743
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54547}
2018-07-19 09:49:36 +00:00
Clemens Hammacher
183204f8ee [wasm] Refactor memory tracing
Instead of passing four arguments to the runtime function, just pass
one pointer to a struct containing all information. This makes it much
easier to implement memory tracing in Liftoff in a follow-up CL.
Also fix a few other minor things like the namespace and the include
guards.

R=titzer@chromium.org

Change-Id: I47d8827cbb896a581585947f594af52f42bdb37c
Reviewed-on: https://chromium-review.googlesource.com/863673
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50568}
2018-01-15 10:13:00 +00:00
Clemens Hammacher
bfaacb8afb [wasm] Add flag for memory tracing
With --wasm-trace-memory, both compiled code and the interpreter will
output each memory load or store. This helps to debug miscompilations in
emscripten or in V8, like the referenced bug.

R=titzer@chromium.org

Bug: chromium:718858
Change-Id: I90704d164975b11c65677f86947ab102242d5153
Reviewed-on: https://chromium-review.googlesource.com/684316
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48255}
2017-10-02 08:26:26 +00:00