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-rw-r--r--llvm/lib/Target/X86/X86Instr64bit.td7
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/X86Instr64bit.td b/llvm/lib/Target/X86/X86Instr64bit.td
index 3f41ffd9944..b67ea0e7c94 100644
--- a/llvm/lib/Target/X86/X86Instr64bit.td
+++ b/llvm/lib/Target/X86/X86Instr64bit.td
@@ -198,6 +198,7 @@ let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in
def TCRETURNri64 : I<0, Pseudo, (outs), (ins GR64_TC:$dst, i32imm:$offset,
variable_ops),
"#TC_RETURN $dst $offset", []>;
+ let mayLoad = 1 in
def TCRETURNmi64 : I<0, Pseudo, (outs),
(ins i64mem_TC:$dst, i32imm:$offset, variable_ops),
"#TC_RETURN $dst $offset", []>;
@@ -208,6 +209,7 @@ let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in
def TAILJMPr64 : I<0xFF, MRM4r, (outs), (ins GR64_TC:$dst, variable_ops),
"jmp{q}\t{*}$dst # TAILCALL", []>;
+ let mayLoad = 1 in
def TAILJMPm64 : I<0xFF, MRM4m, (outs), (ins i64mem_TC:$dst, variable_ops),
"jmp{q}\t{*}$dst # TAILCALL", []>;
}
@@ -241,6 +243,7 @@ def EH_RETURN64 : I<0xC3, RawFrm, (outs), (ins GR64:$addr),
def POPCNT64rr : RI<0xB8, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
"popcnt{q}\t{$src, $dst|$dst, $src}", []>, XS;
+let mayLoad = 1 in
def POPCNT64rm : RI<0xB8, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
"popcnt{q}\t{$src, $dst|$dst, $src}", []>, XS;
@@ -1720,11 +1723,13 @@ def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
"xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
+let mayLoad = 1, mayStore = 1 in
def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
"xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
"cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
+let mayLoad = 1, mayStore = 1 in
def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
"cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
@@ -1736,7 +1741,7 @@ def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
"xchg{q}\t{$src, %rax|%rax, $src}", []>;
// Optimized codegen when the non-memory output is not used.
-let Defs = [EFLAGS] in {
+let Defs = [EFLAGS], mayLoad = 1, mayStore = 1 in {
// FIXME: Use normal add / sub instructions and add lock prefix dynamically.
def LOCK_ADD64mr : RI<0x03, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src2),
"lock\n\t"
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