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| author | Bill Schmidt <wschmidt@linux.ibm.com> | 2020-08-19 13:43:55 -0500 |
|---|---|---|
| committer | Bill Schmidt <wschmidt@linux.ibm.com> | 2020-08-19 13:43:55 -0500 |
| commit | 95f17e26112d8a0700e8a9912e2f4f48a24ba1ea (patch) | |
| tree | 9dffad1e20d30777b80466f59b169c066ced05ed /gcc/graphite-optimize-isl.c | |
| parent | 5abc821556e141c9b7003877d09d9dd9e9f98ae7 (diff) | |
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rs6000: Enable more sibcalls when TOC is not preserved
A function compiled with the PC-relative addressing model does not
require r2 to contain a TOC pointer, and does not guarantee that r2
will be preserved for its caller. Such a function can make sibcalls
without restriction based on TOC preservation rules. However, a
caller that does preserve r2 cannot make a sibcall to a callee that
does not.
2020-08-19 Bill Schmidt <wschmidt@linux.ibm.com>
gcc/
* config/rs6000/rs6000-logue.c (rs6000_decl_ok_for_sibcall):
Sibcalls are always legal when the caller doesn't preserve r2.
gcc/testsuite/
* gcc.target/powerpc/pcrel-sibcall-1.c: Adjust.
Diffstat (limited to 'gcc/graphite-optimize-isl.c')
0 files changed, 0 insertions, 0 deletions