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| author | Segher Boessenkool <segher@gcc.gnu.org> | 2019-03-24 21:26:53 +0100 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2019-03-24 21:26:53 +0100 |
| commit | 06c1602ae4d1ff3270aa12ba6f010cd51302fe91 (patch) | |
| tree | f9ec455a6faac629af01a9bab47c4cbf8836633f /gcc/tree-loop-distribution.c | |
| parent | 38a47a0fc6defeaf3f49ab63aff262ae42dffd89 (diff) | |
| download | gcc-06c1602ae4d1ff3270aa12ba6f010cd51302fe91.zip gcc-06c1602ae4d1ff3270aa12ba6f010cd51302fe91.tar.gz gcc-06c1602ae4d1ff3270aa12ba6f010cd51302fe91.tar.bz2 | |
rs6000: Make CSE'ing __tls_get_addr calls possible
CSE does not consider calls, not even const calls. This patch puts a
REG_EQUAL note on the pseudo we assign the __tls_get_addr result to,
so that those pseudos can be CSE'd and the extra calls deleted as dead
code.
CSE should really handle const calls directly, but it is stage 4.
* config/rs6000/rs6000.c (rs6000_legitimize_tls_address): Add REG_EQUAL
notes for the result of the __tls_get_addr calls.
* config/rs6000/rs6000.md (unspec UNSPEC_TLS_GET_ADDR): New.
From-SVN: r269902
Diffstat (limited to 'gcc/tree-loop-distribution.c')
0 files changed, 0 insertions, 0 deletions