Mark all the _REV instructions as not having side effects. They aren't really emitted by the backend, but it reduces the number of instructions in the output files with unmodelled side effects to make auditing easier.
llvm-svn: 171118
diff --git a/llvm/lib/Target/X86/X86InstrArithmetic.td b/llvm/lib/Target/X86/X86InstrArithmetic.td
index 478c42d..874b9aa 100644
--- a/llvm/lib/Target/X86/X86InstrArithmetic.td
+++ b/llvm/lib/Target/X86/X86InstrArithmetic.td
@@ -690,6 +690,7 @@
mnemonic, "{$src2, $dst|$dst, $src2}", [], IIC_BIN_NONMEM> {
// The disassembler should know about this, but not the asmparser.
let isCodeGenOnly = 1;
+ let hasSideEffects = 0;
}
// BinOpRR_F_Rev - Instructions like "cmp reg, reg" (reversed encoding).