diff options
author | Ben Cheng <bccheng@google.com> | 2014-04-22 13:33:12 -0700 |
---|---|---|
committer | Ben Cheng <bccheng@google.com> | 2014-04-22 13:33:12 -0700 |
commit | e3cc64dec20832769406aa38cde83c7dd4194bf4 (patch) | |
tree | ef8e39be37cfe0cb69d850043b7924389ff17164 /gcc-4.9/gcc/cse.c | |
parent | f33c7b3122b1d7950efa88067c9a156229ba647b (diff) | |
download | toolchain_gcc-e3cc64dec20832769406aa38cde83c7dd4194bf4.tar.gz toolchain_gcc-e3cc64dec20832769406aa38cde83c7dd4194bf4.tar.bz2 toolchain_gcc-e3cc64dec20832769406aa38cde83c7dd4194bf4.zip |
[4.9] GCC 4.9.0 official release refresh
Change-Id: Ic99a7da8b44b789a48aeec93b33e93944d6e6767
Diffstat (limited to 'gcc-4.9/gcc/cse.c')
-rw-r--r-- | gcc-4.9/gcc/cse.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/cse.c b/gcc-4.9/gcc/cse.c index 852d13ebf..b8223f7a3 100644 --- a/gcc-4.9/gcc/cse.c +++ b/gcc-4.9/gcc/cse.c @@ -4642,6 +4642,13 @@ cse_insn (rtx insn) && REGNO (dest) >= FIRST_PSEUDO_REGISTER) sets[i].src_volatile = 1; + /* Also do not record result of a non-volatile inline asm with + more than one result or with clobbers, we do not want CSE to + break the inline asm apart. */ + else if (GET_CODE (src) == ASM_OPERANDS + && GET_CODE (x) == PARALLEL) + sets[i].src_volatile = 1; + #if 0 /* It is no longer clear why we used to do this, but it doesn't appear to still be needed. So let's try without it since this |