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| author | Andrew Pinski <apinski@marvell.com> | 2021-05-31 00:17:22 +0000 |
|---|---|---|
| committer | Andrew Pinski <apinski@marvell.com> | 2021-06-01 18:28:59 +0000 |
| commit | ea418485c700494c3efdc282854c5f5a08702416 (patch) | |
| tree | 769672eb702b47d8a88a80540d300e667ce47c6d /gcc/tree-ssa-phiopt.c | |
| parent | 34aae6b561871d6d8b10c810f303cb6f18b5fdd0 (diff) | |
| download | gcc-ea418485c700494c3efdc282854c5f5a08702416.zip gcc-ea418485c700494c3efdc282854c5f5a08702416.tar.gz gcc-ea418485c700494c3efdc282854c5f5a08702416.tar.bz2 | |
Fix PR 95481: tail call fails with empty struct types
The problem here is we don't have an assignment type any more
for empty structs as they were removed during gimplifcation.
This adds a special case where the assignment var does not exist
and the return decl is empty typed.
OK? Tested on aarch64-linux-gnu with no regressions.
Thanks,
Andrew Pinski
changes since v1:
v2: Use is_empty_type instead of zero-sized type.
gcc/ChangeLog:
PR tree-optimization/95481
* tree-tailcall.c (find_tail_calls): Handle empty typed
return decls.
gcc/testsuite/ChangeLog:
PR tree-optimization/95481
* gcc.dg/tree-ssa/tailcall-10.c: New test.
* gcc.dg/tree-ssa/tailcall-11.c: New test.
* gcc.dg/tree-ssa/tailcall-12.c: New test.
* gcc.dg/tree-ssa/tailcall-13.c: New test.
* gcc.dg/tree-ssa/tailrecursion-8.c: New test.
Diffstat (limited to 'gcc/tree-ssa-phiopt.c')
0 files changed, 0 insertions, 0 deletions