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Tweaks to X86 instructions to allow the 'w' suffix in places it makes
sense, when the instruction takes the 16-bit ax register or m16 memory location. These changes to llvm-mc matches what the darwin assembler allows for these instructions. Done differently than in r117031 that caused a valgrind error which was later reverted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117433 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -705,6 +705,12 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
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.Case("fildq", "fildll")
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.Case("fcompi", "fcomip")
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.Case("fucompi", "fucomip")
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.Case("fldcww", "fldcw")
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.Case("fnstcww", "fnstcw")
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.Case("fstcww", "fstcw")
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.Case("fnstsww", "fnstsw")
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.Case("fstsww", "fstsw")
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.Case("verrw", "verr")
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.Default(Name);
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// FIXME: Hack to recognize cmp<comparison code>{ss,sd,ps,pd}.
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@ -726,3 +726,51 @@ pshufw $90, %mm4, %mm0
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// CHECK: fucomip %st(1), %st(0)
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// CHECK: encoding: [0xdf,0xe9]
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fucompi
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// CHECK: fldcw 32493
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// CHECK: encoding: [0xd9,0x2d,0xed,0x7e,0x00,0x00]
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fldcww 0x7eed
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// CHECK: fldcw 32493
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// CHECK: encoding: [0xd9,0x2d,0xed,0x7e,0x00,0x00]
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fldcw 0x7eed
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// CHECK: fnstcw 32493
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// CHECK: encoding: [0xd9,0x3d,0xed,0x7e,0x00,0x00]
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fnstcww 0x7eed
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// CHECK: fnstcw 32493
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// CHECK: encoding: [0xd9,0x3d,0xed,0x7e,0x00,0x00]
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fnstcw 0x7eed
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// CHECK: wait
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// CHECK: encoding: [0x9b]
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fstcww 0x7eed
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// CHECK: wait
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// CHECK: encoding: [0x9b]
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fstcw 0x7eed
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// CHECK: fnstsw 32493
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// CHECK: encoding: [0xdd,0x3d,0xed,0x7e,0x00,0x00]
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fnstsww 0x7eed
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// CHECK: fnstsw 32493
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// CHECK: encoding: [0xdd,0x3d,0xed,0x7e,0x00,0x00]
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fnstsw 0x7eed
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// CHECK: wait
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// CHECK: encoding: [0x9b]
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fstsww 0x7eed
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// CHECK: wait
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// CHECK: encoding: [0x9b]
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fstsw 0x7eed
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// CHECK: verr 32493
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// CHECK: encoding: [0x0f,0x00,0x25,0xed,0x7e,0x00,0x00]
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verrw 0x7eed
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// CHECK: verr 32493
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// CHECK: encoding: [0x0f,0x00,0x25,0xed,0x7e,0x00,0x00]
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verr 0x7eed
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