diff options
| author | Jason Merrill <jason@redhat.com> | 2022-09-19 19:08:10 +0200 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2022-09-29 13:48:20 -0400 |
| commit | 32b2eb59fb904926eff77811e08766a8ae6804a7 (patch) | |
| tree | b5d170cf847014cde68feb6c197515e3d9fdec99 /libgcc/libgcov-util.c | |
| parent | af9034827e8f06f10767064e9fc7443b94e08184 (diff) | |
| download | gcc-32b2eb59fb904926eff77811e08766a8ae6804a7.zip gcc-32b2eb59fb904926eff77811e08766a8ae6804a7.tar.gz gcc-32b2eb59fb904926eff77811e08766a8ae6804a7.tar.bz2 | |
c++: reduce temporaries in ?:
When the sides of ?: are class prvalues, we wrap the COND_EXPR in a
TARGET_EXPR so that both sides will initialize the same temporary. But in
this case we were stripping the outer TARGET_EXPR and conditionally creating
different temporaries, unnecessarily using extra stack. The
recently added TARGET_EXPR_NO_ELIDE flag avoids this.
gcc/cp/ChangeLog:
* call.cc (build_conditional_expr): Set TARGET_EXPR_NO_ELIDE on the
outer TARGET_EXPR.
gcc/testsuite/ChangeLog:
* g++.dg/tree-ssa/cond-temp1.C: New test.
Diffstat (limited to 'libgcc/libgcov-util.c')
0 files changed, 0 insertions, 0 deletions