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| author | Magnus Lång <[email protected]> | 2017-11-05 18:50:40 +0100 |
|---|---|---|
| committer | Magnus Lång <[email protected]> | 2017-11-05 20:52:48 +0100 |
| commit | 14250efc69cacde4310aeb89b3b1ef631d8e5fe9 (patch) | |
| tree | b61cb180f9f6b3ac2892a955b8fc9536fc0e7260 /lib/hipe/rtl/hipe_rtl.erl | |
| parent | 354f6d1c29ecaabab8a5aa3f1c95a4188a0aa542 (diff) | |
| download | otp-14250efc69cacde4310aeb89b3b1ef631d8e5fe9.tar.gz otp-14250efc69cacde4310aeb89b3b1ef631d8e5fe9.tar.bz2 otp-14250efc69cacde4310aeb89b3b1ef631d8e5fe9.zip | |
HiPE: Verify GC safety of derived values
HiPE has had metadata for gc safety on it's temporaries for a while, but
it has never been enforced or even checked, so naturally several
gc-safety violations has slipped through.
A new pass, hipe_rtl_verify_gcsafe verifies gcsafety on optimised RTL
and is used when running the testsuite, and can be manually enabled with
+{hipe,[verify_gcsafe]}.
Diffstat (limited to 'lib/hipe/rtl/hipe_rtl.erl')
| -rw-r--r-- | lib/hipe/rtl/hipe_rtl.erl | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/hipe/rtl/hipe_rtl.erl b/lib/hipe/rtl/hipe_rtl.erl index 04c9728d5c..33027f3259 100644 --- a/lib/hipe/rtl/hipe_rtl.erl +++ b/lib/hipe/rtl/hipe_rtl.erl @@ -1740,7 +1740,10 @@ pp_reg(Dev, Arg) -> true -> pp_hard_reg(Dev, reg_index(Arg)); false -> - io:format(Dev, "r~w", [reg_index(Arg)]) + case reg_is_gcsafe(Arg) of + true -> io:format(Dev, "rs~w", [reg_index(Arg)]); + false -> io:format(Dev, "r~w", [reg_index(Arg)]) + end end. pp_var(Dev, Arg) -> |