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| author | Dan Gohman <gohman@apple.com> | 2009-10-20 18:14:49 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-10-20 18:14:49 +0000 |
| commit | 1c28699c6e054f2033d93c04c87bf7ad88646bc1 (patch) | |
| tree | efd7bd868924e1d388dcf48b3707a5fd02c4eff0 /lib | |
| parent | 2512e357a856660a1b30766997ae046eaffe21e5 (diff) | |
| download | external_llvm-1c28699c6e054f2033d93c04c87bf7ad88646bc1.zip external_llvm-1c28699c6e054f2033d93c04c87bf7ad88646bc1.tar.gz external_llvm-1c28699c6e054f2033d93c04c87bf7ad88646bc1.tar.bz2 | |
Following r84485, add Defs = [EFLAGS] to the 32-bit lock instructions too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84652 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index 9d474d3..16b2af7 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -3593,6 +3593,7 @@ def LXADD8 : I<0xC0, MRMSrcMem, (outs GR8:$dst), (ins i8mem:$ptr, GR8:$val), // Optimized codegen when the non-memory output is not used. // FIXME: Use normal add / sub instructions and add lock prefix dynamically. +let Defs = [EFLAGS] in { def LOCK_ADD8mr : I<0x00, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src2), "lock\n\t" "add{b}\t{$src2, $dst|$dst, $src2}", []>, LOCK; @@ -3662,6 +3663,7 @@ def LOCK_DEC16m : I<0xFF, MRM1m, (outs), (ins i16mem:$dst), def LOCK_DEC32m : I<0xFF, MRM1m, (outs), (ins i32mem:$dst), "lock\n\t" "dec{l}\t$dst", []>, LOCK; +} // Atomic exchange, and, or, xor let Constraints = "$val = $dst", Defs = [EFLAGS], |