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| author | Alan Modra <amodra@gmail.com> | 2019-12-23 18:04:12 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-12-23 18:04:12 +1030 |
| commit | 3e1056a1a6336f289d3f0def8f6a3632c8a75393 (patch) | |
| tree | 179580314154fe4df22e7b2ea548366f999aca28 /cpu | |
| parent | 1a1e2852a56da48da1f3b5c80d23c3998a9000fc (diff) | |
| download | binutils-gdb-3e1056a1a6336f289d3f0def8f6a3632c8a75393.tar.gz | |
ubsan: iq2000: left shift of negative value
cpu/
* iq2000.cpu (f-offset): Avoid left shift of negative values.
opcodes/
* iq2000-ibld.c: Regenerate.
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/ChangeLog | 4 | ||||
| -rw-r--r-- | cpu/iq2000.cpu | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/cpu/ChangeLog b/cpu/ChangeLog index 1729efd266c..3e6a8d8c4d0 100644 --- a/cpu/ChangeLog +++ b/cpu/ChangeLog @@ -1,3 +1,7 @@ +2019-12-23 Alan Modra <amodra@gmail.com> + + * iq2000.cpu (f-offset): Avoid left shift of negative values. + 2019-12-20 Alan Modra <amodra@gmail.com> * or1korbis.cpu (f-disp26, f-disp21): Don't left shift negative values. diff --git a/cpu/iq2000.cpu b/cpu/iq2000.cpu index e25ba69392b..cb9cfae1d43 100644 --- a/cpu/iq2000.cpu +++ b/cpu/iq2000.cpu @@ -207,7 +207,7 @@ (df f-offset "pc offset field" (PCREL-ADDR) 15 16 INT ; Actually, this is relative to the address of the delay slot. ((value pc) (sra SI (sub SI value pc) 2)) - ((value pc) (add SI (sll SI value 2) (add pc 4)))) + ((value pc) (add SI (mul SI value 4) (add pc 4)))) ; Instruction fields that scarcely appear in instructions. |