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

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

llvm-svn: 331105
This commit is contained in:
Craig Topper 2018-04-28 06:58:27 +00:00
parent 6d6b2b9503
commit 9e11f96df6
1 changed files with 1 additions and 4 deletions
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5
llvm/lib/Target/X86/X86InstrMPX.td
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@ -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]>;