| commit | db4e496aadf1d7ab1c5af24410394d1551ddd3f0 | |
| author | Wilco Dijkstra <wilco.dijkstra@arm.com> | |
| Tue, 16 Jan 2024 16:27:02 +0000 (16 16:27 +0000) | ||
| committer | Wilco Dijkstra <wilco.dijkstra@arm.com> | |
| Tue, 16 Jan 2024 17:12:48 +0000 (16 17:12 +0000) | ||
| tree | 9c70c875e87e53441175b90183c15b7154e9004e | treesnapshot (tar.gz zip) |
| parent | 4bd09ce06f50d266c992c984cc993384d5e6655e | commitdiff |
AArch64: Reassociate CONST in address expressions
GCC tends to optimistically create CONST of globals with an immediate offset.
However it is almost always better to CSE addresses of globals and add immediate
offsets separately (the offset could be merged later in single-use cases).
Splitting CONST expressions with an index in aarch64_legitimize_address fixes
part of PR112573.
gcc/ChangeLog:
PR target/112573
* config/aarch64/aarch64.cc (aarch64_legitimize_address): Reassociate
badly formed CONST expressions.
gcc/testsuite/ChangeLog:
PR target/112573
* gcc.target/aarch64/pr112573.c: Add new test.
GCC tends to optimistically create CONST of globals with an immediate offset.
However it is almost always better to CSE addresses of globals and add immediate
offsets separately (the offset could be merged later in single-use cases).
Splitting CONST expressions with an index in aarch64_legitimize_address fixes
part of PR112573.
gcc/ChangeLog:
PR target/112573
* config/aarch64/aarch64.cc (aarch64_legitimize_address): Reassociate
badly formed CONST expressions.
gcc/testsuite/ChangeLog:
PR target/112573
* gcc.target/aarch64/pr112573.c: Add new test.
| gcc/config/aarch64/aarch64.cc | diffblobblamehistory | |
| gcc/testsuite/gcc.target/aarch64/pr112573.c | [new file with mode: 0644] | blob |