Hi!
On Thu, Mar 23, 2023 at 12:06:39AM -0300, Alexandre Oliva wrote:
> On Mar 13, 2023, Segher Boessenkool wrote:
> > Yes. On most architectures you can get multiple machine instructions of
> > course (for long calls for example), but on rs6000 (with some ABIs, in
> > some circumstances) we gene
> "Segher" == Segher Boessenkool writes:
>> FWIW I sent a gdb patch to work around this bug. However, in my
>> examples, I only ever saw a nop following the call instruction -- so I
>> had gdb check for this.
Segher> GCC inserts just a nop in most cases, but the linker or dynamic linker
Seg
On Mar 13, 2023, Segher Boessenkool wrote:
> Hi!
> This is stage 1 stuff (or does it fix some regression or such?)
> On Fri, Mar 03, 2023 at 03:00:02PM -0300, Alexandre Oliva wrote:
>> Some of the rs6000 call patterns, on some ABIs, issue multiple opcodes
>> out of a single call insn, but the ca
On Fri, Mar 17, 2023 at 10:33:22AM -0600, Tom Tromey wrote:
> > "Segher" == Segher Boessenkool writes:
>
> Segher> Yes. On most architectures you can get multiple machine instructions
> of
> Segher> course (for long calls for example), but on rs6000 (with some ABIs, in
> Segher> some circum
> "Segher" == Segher Boessenkool writes:
Segher> Yes. On most architectures you can get multiple machine instructions of
Segher> course (for long calls for example), but on rs6000 (with some ABIs, in
Segher> some circumstances) we generate a nop insn after calls, so that the
Segher> linker h
Hi!
This is stage 1 stuff (or does it fix some regression or such?)
On Fri, Mar 03, 2023 at 03:00:02PM -0300, Alexandre Oliva wrote:
> Some of the rs6000 call patterns, on some ABIs, issue multiple opcodes
> out of a single call insn, but the call (bl) or jump (b) is not always
> the last opcode
Some of the rs6000 call patterns, on some ABIs, issue multiple opcodes
out of a single call insn, but the call (bl) or jump (b) is not always
the last opcode in the sequence.
This does not seem to be a problem for exception handling tables, but
the return_pc attribute in the call graph output in
