| commit | 5c31bc69ecb34f43b96ec8f62464087039d16522 | |
| author | wilco <wilco@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 26 Jul 2017 10:49:17 +0000 (26 10:49 +0000) | ||
| committer | wilco <wilco@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Wed, 26 Jul 2017 10:49:17 +0000 (26 10:49 +0000) | ||
| tree | 9f02cf54fd2ecd11c81775e3027fc7f58fa5b76d | treesnapshot (tar.gz zip) |
| parent | 3cfa73b5672911258f1c5d5844541f10b30456d1 | commitdiff |
Fix PR46932: Block auto increment on frame pointer
Block auto increment on frame pointer references. This is never
beneficial since the SFP expands into SP+C or FP+C during register
allocation. The generated code for the testcase is now as expected:
str x30, [sp, -32]!
strb w0, [sp, 31]
add x0, sp, 31
bl foo3
ldr x30, [sp], 32
ret
gcc/
PR middle-end/46932
* auto-inc-dec.c (parse_add_or_inc): Block autoinc on sfp.
gcc/testsuite/
PR middle-end/46932
* gcc.dg/pr46932.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250564 138bc75d-0d04-0410-961f-82ee72b054a4
Block auto increment on frame pointer references. This is never
beneficial since the SFP expands into SP+C or FP+C during register
allocation. The generated code for the testcase is now as expected:
str x30, [sp, -32]!
strb w0, [sp, 31]
add x0, sp, 31
bl foo3
ldr x30, [sp], 32
ret
gcc/
PR middle-end/46932
* auto-inc-dec.c (parse_add_or_inc): Block autoinc on sfp.
gcc/testsuite/
PR middle-end/46932
* gcc.dg/pr46932.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@250564 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/auto-inc-dec.c | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/pr46932.c | [new file with mode: 0644] | blob |