Mark the divide instructions as hasSideEffects=0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171136 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrArithmetic.td b/lib/Target/X86/X86InstrArithmetic.td
index 693815d42f7d3c40f435e2f38902c9cac19b809d..d56763ea9d266b675beceb43dc872da8e357e226 100644 (file)
--- a/lib/Target/X86/X86InstrArithmetic.td
+++ b/lib/Target/X86/X86InstrArithmetic.td
@@ -266,6 +266,7 @@ def IMUL64rmi8 : RIi8<0x6B, MRMSrcMem,                      // GR64 = [mem64]*I8
 
 
 // unsigned division/remainder
+let hasSideEffects = 0 in {
 let Defs = [AL,EFLAGS,AX], Uses = [AX] in
 def DIV8r  : I<0xF6, MRM6r, (outs),  (ins GR8:$src),    // AX/r8 = AL,AH
                "div{b}\t$src", [], IIC_DIV8_REG>;
@@ -325,6 +326,7 @@ let Defs = [RAX,RDX,EFLAGS], Uses = [RAX,RDX] in // RDX:RAX/[mem64] = RAX,RDX
 def IDIV64m: RI<0xF7, MRM7m, (outs), (ins i64mem:$src),
                 "idiv{q}\t$src", [], IIC_IDIV64>;
 }
+} // hasSideEffects = 0
 
 //===----------------------------------------------------------------------===//
 //  Two address Instructions.