[llvm] r331105 - [X86] Remove mayLoad flag from BNDMK/BNDCL/BNDCN/BNDCU.

Craig Topper via llvm-commits llvm-commits at lists.llvm.org
Fri Apr 27 23:58:27 PDT 2018


Author: ctopper
Date: Fri Apr 27 23:58:27 2018
New Revision: 331105

URL: http://llvm.org/viewvc/llvm-project?rev=331105&view=rev
Log:
[X86] Remove mayLoad flag from BNDMK/BNDCL/BNDCN/BNDCU.

The instruction documentation specifically says that these instruction don't access memory.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrMPX.td

Modified: llvm/trunk/lib/Target/X86/X86InstrMPX.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrMPX.td?rev=331105&r1=331104&r2=331105&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrMPX.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrMPX.td Fri Apr 27 23:58:27 2018
@@ -17,7 +17,6 @@
 let SchedRW = [WriteSystem] in {
 
 multiclass mpx_bound_make<bits<8> opc, string OpcodeStr> {
-let mayLoad = 1 in {
   def 32rm: I<opc, MRMSrcMem, (outs BNDR:$dst), (ins anymem:$src),
               OpcodeStr#"\t{$src, $dst|$dst, $src}", []>,
               Requires<[HasMPX, Not64BitMode]>;
@@ -25,19 +24,17 @@ let mayLoad = 1 in {
               OpcodeStr#"\t{$src, $dst|$dst, $src}", []>,
               Requires<[HasMPX, In64BitMode]>;
 }
-}
 
 defm BNDMK : mpx_bound_make<0x1B, "bndmk">, XS;
 
 multiclass mpx_bound_check<bits<8> opc, string OpcodeStr> {
-let mayLoad = 1 in {
   def 32rm: I<opc, MRMSrcMem, (outs), (ins  BNDR:$src1, anymem:$src2),
               OpcodeStr#"\t{$src2, $src1|$src1, $src2}", []>,
               Requires<[HasMPX, Not64BitMode]>;
   def 64rm: I<opc, MRMSrcMem, (outs), (ins  BNDR:$src1, anymem:$src2),
               OpcodeStr#"\t{$src2, $src1|$src1, $src2}", []>,
               Requires<[HasMPX, In64BitMode]>;
-}
+
   def 32rr: I<opc, MRMSrcReg, (outs), (ins  BNDR:$src1, GR32:$src2),
               OpcodeStr#"\t{$src2, $src1|$src1, $src2}", []>,
               Requires<[HasMPX, Not64BitMode]>;




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