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Fixed the word sized Bit Scan Forward/Reverse instructions, they needed the

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Operand size override prefix to be part of their records.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102556 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kevin Enderby 2010-04-28 23:20:40 +00:00
parent 2ad0fcf794
commit 9ac7282117
2 changed files with 22 additions and 4 deletions
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10
lib/Target/X86/X86InstrInfo.td
View File

@ -781,10 +781,11 @@ let isTwoAddress = 1 in // GR32 = bswap GR32
let Defs = [EFLAGS] in {
def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"bsf{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))]>, TB;
[(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))]>, TB, OpSize;
def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"bsf{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))]>, TB;
[(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))]>, TB,
OpSize;
def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"bsf{l}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))]>, TB;
@ -794,10 +795,11 @@ def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"bsr{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))]>, TB;
[(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))]>, TB, OpSize;
def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"bsr{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))]>, TB;
[(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))]>, TB,
OpSize;
def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"bsr{l}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))]>, TB;

16
test/MC/AsmParser/X86/x86_32-encoding.s
View File

@ -9968,3 +9968,19 @@
// CHECK: fixup A - offset: 5, value: CPI1_0-4
pshufb CPI1_0(%rip), %xmm1
// rdar://7910087
// CHECK: bsfw %bx, %bx
// CHECK: encoding: [0x66,0x0f,0xbc,0xdb]
bsfw %bx, %bx
// CHECK: bsfw 3735928559(%ebx,%ecx,8), %bx
// CHECK: encoding: [0x66,0x0f,0xbc,0x9c,0xcb,0xef,0xbe,0xad,0xde]
bsfw 3735928559(%ebx,%ecx,8), %bx
// CHECK: bsrw %bx, %bx
// CHECK: encoding: [0x66,0x0f,0xbd,0xdb]
bsrw %bx, %bx
// CHECK: bsrw 305419896, %bx
// CHECK: encoding: [0x66,0x0f,0xbd,0x1d,0x78,0x56,0x34,0x12]
bsrw 305419896, %bx