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| author | Alan Modra <amodra@gmail.com> | 2019-12-16 10:00:07 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-16 17:35:13 +1030 |
| commit | e6ced26afd50b0d74b8ea14ca1cd62cdc5d11ae8 (patch) | |
| tree | ac662714d50d455e71e8f2f73101b06c284cb7d3 /cpu | |
| parent | 84e098cdea4eb6a5ddc525a2145ffe66475fa2af (diff) | |
| download | gdb-e6ced26afd50b0d74b8ea14ca1cd62cdc5d11ae8.zip gdb-e6ced26afd50b0d74b8ea14ca1cd62cdc5d11ae8.tar.gz gdb-e6ced26afd50b0d74b8ea14ca1cd62cdc5d11ae8.tar.bz2 | |
ubsan: xstormy16: left shift of negative value
cpu/
* xstormy16.cpu (f-rel12a): Avoid signed overflow.
opcodes/
* xstormy16-ibld.c: Regenerate.
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/ChangeLog | 4 | ||||
| -rw-r--r-- | cpu/xstormy16.cpu | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/cpu/ChangeLog b/cpu/ChangeLog index c5a44ab..688c596 100644 --- a/cpu/ChangeLog +++ b/cpu/ChangeLog @@ -1,3 +1,7 @@ +2019-12-16 Alan Modra <amodra@gmail.com> + + * xstormy16.cpu (f-rel12a): Avoid signed overflow. + 2019-12-11 Alan Modra <amodra@gmail.com> * epiphany.cpu (f-sdisp11): Don't sign extend with shifts. diff --git a/cpu/xstormy16.cpu b/cpu/xstormy16.cpu index ae7e042..aa5a464 100644 --- a/cpu/xstormy16.cpu +++ b/cpu/xstormy16.cpu @@ -393,7 +393,7 @@ (length 11) (mode INT) (encode (value pc) (sra SI (sub SI value (add SI pc 2)) 1)) - (decode (value pc) (add SI (sll value 1) (add SI pc 2))) + (decode (value pc) (add SI (mul value 2) (add SI pc 2))) ) (dnop rel12a "12 bit relative address" () h-uint f-rel12a) |