https://sourceware.org/bugzilla/show_bug.cgi?id=28791
Bug ID: 28791
Summary: [z80-unknown-elf-as]: new unexpected overflow warning
in v2.37
Product: binutils
Version: 2.37
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: petemoore at gmx dot net
CC: sergey.belyashov at gmail dot com
Target Milestone: ---
Build: 2.37
Unexpected assembly warning in z80-unknown-elf-as 2.37, that isn't present in
z80-unknown-elf-as 2.36.1.
Test file:
```
pmoore@Petes-iMac:~/tmp $ cat test.s
ld e, ~0xe6
```
Using z80-unknown-elf-as 2.36.1:
```
pmoore@Petes-iMac:~/tmp $ z80-unknown-elf-as test.s
pmoore@Petes-iMac:~/tmp $
```
Using z80-unknown-elf-as 2.37:
```
pmoore@Petes-iMac:~/tmp $ z80-unknown-elf-as test.s
test.s:1: Warning: 8-bit overflow (-231)
pmoore@Petes-iMac:~/tmp $
```
The assembly is successful in both cases and produce identical (valid) elf
files:
```
pmoore@Petes-iMac:~/tmp $ shasum -a 256 *.o
056fce58bb02a205e07f1d36ee945afb00017195988fc22325cbbdf5318d9d1d
test-with-binutils-2.36.1.o
056fce58bb02a205e07f1d36ee945afb00017195988fc22325cbbdf5318d9d1d
test-with-binutils-2.37.o
pmoore@Petes-iMac:~/tmp $ z80-unknown-elf-objdump -d test-with-binutils-2.37.o
test-with-binutils-2.37.o: file format elf32-z80
Disassembly of section .text:
00000000 <.text>:
0: 1e 19 ld e,0x19
pmoore@Petes-iMac:~/tmp $
```
I don't believe this should be reported as an overflow.
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