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| author | Richard Sandiford <richard.sandiford@arm.com> | 2020-01-06 13:01:48 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2020-01-06 13:01:48 +0000 |
| commit | 033381118519f597dfb4f62614ffdec7f7b17390 (patch) | |
| tree | d60c99bca466af911b3097b2897b68f7bdd925b9 /gcc | |
| parent | 3c2707f33af46ac145769872b65e25fd0b870903 (diff) | |
| download | gcc-033381118519f597dfb4f62614ffdec7f7b17390.zip gcc-033381118519f597dfb4f62614ffdec7f7b17390.tar.gz gcc-033381118519f597dfb4f62614ffdec7f7b17390.tar.bz2 | |
[AArch64] Use move-if-change for aarch64-tune.md
If aarch64-tune.md was older than gentune.sh or aarch64-cores.def,
we'd try to overwrite it even if the current contents were correct.
This could cause problems with read-only source directories and
could cause spurious copying for rsync --archive.
2020-01-06 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/t-aarch64 ($(srcdir)/config/aarch64/aarch64-tune.md):
Depend on...
(s-aarch64-tune-md): ...this new stamp file. Pipe the new contents
to a temporary file and use move-if-change to update the real
file where necessary.
From-SVN: r279900
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/aarch64/t-aarch64 | 6 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 520562a..820a86f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,13 @@ 2020-01-06 Richard Sandiford <richard.sandiford@arm.com> + * config/aarch64/t-aarch64 ($(srcdir)/config/aarch64/aarch64-tune.md): + Depend on... + (s-aarch64-tune-md): ...this new stamp file. Pipe the new contents + to a temporary file and use move-if-change to update the real + file where necessary. + +2020-01-06 Richard Sandiford <richard.sandiford@arm.com> + * config/aarch64/aarch64-sve.md (@aarch64_sel_dup<mode>): Use Upl rather than Upa for CPY /M. diff --git a/gcc/config/aarch64/t-aarch64 b/gcc/config/aarch64/t-aarch64 index ed250ea..475d5c5 100644 --- a/gcc/config/aarch64/t-aarch64 +++ b/gcc/config/aarch64/t-aarch64 @@ -24,11 +24,15 @@ OPTIONS_H_EXTRA += $(srcdir)/config/aarch64/aarch64-cores.def \ $(srcdir)/config/aarch64/aarch64-fusion-pairs.def \ $(srcdir)/config/aarch64/aarch64-tuning-flags.def -$(srcdir)/config/aarch64/aarch64-tune.md: $(srcdir)/config/aarch64/gentune.sh \ +$(srcdir)/config/aarch64/aarch64-tune.md: s-aarch64-tune-md; @true +s-aarch64-tune-md: $(srcdir)/config/aarch64/gentune.sh \ $(srcdir)/config/aarch64/aarch64-cores.def $(SHELL) $(srcdir)/config/aarch64/gentune.sh \ $(srcdir)/config/aarch64/aarch64-cores.def > \ + tmp-aarch64-tune.md + $(SHELL) $(srcdir)/../move-if-change tmp-aarch64-tune.md \ $(srcdir)/config/aarch64/aarch64-tune.md + $(STAMP) s-aarch64-tune-md aarch64-builtins.o: $(srcdir)/config/aarch64/aarch64-builtins.c $(CONFIG_H) \ $(SYSTEM_H) coretypes.h $(TM_H) \ |