| Issue |
181553
|
| Summary |
clang generates an intruction that binutils doesn't understand
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
mikulas-patocka
|
Compile this function:
unsigned long shr(unsigned long x)
{
return x >> 1;
}
with this command line: "clang-23 -m64 -O2 -mapxf -no-integrated-as -c shrq.c".
You get:
/tmp/shrq-9e6c3b.s: Assembler messages:
/tmp/shrq-9e6c3b.s:10: Error: operand type mismatch for `shr'
clang-23: error: assembler command failed with exit code 1 (use -v to see invocation)
The offending instruction is "{nf} shrq %rdi, %rax". It should be "{nf} shrq $1, %rdi, %rax"
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