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bpf: fix an insn encoding issue for neg insn 

Signed-off-by: Yonghong Song <yhs@fb.com>
llvm-svn: 314911
This commit is contained in:
Yonghong Song 2017-10-04 16:11:52 +00:00
parent 9445b89c49
commit 09b01b3555
3 changed files with 3 additions and 5 deletions
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2
llvm/lib/Target/BPF/BPFInstrInfo.td
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@ -238,9 +238,7 @@ class NEG_RR<BPFOpClass Class, BPFArithOp Opc,
dag outs, dag ins, string asmstr, list<dag> pattern> dag outs, dag ins, string asmstr, list<dag> pattern>
: TYPE_ALU_JMP<Opc.Value, 0, outs, ins, asmstr, pattern> { : TYPE_ALU_JMP<Opc.Value, 0, outs, ins, asmstr, pattern> {
bits<4> dst; bits<4> dst;
bits<4> src;
let Inst{55-52} = src;
let Inst{51-48} = dst; let Inst{51-48} = dst;
let BPFClass = Class; let BPFClass = Class;
} }

2
llvm/test/MC/BPF/insn-unit-32.s
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@ -7,7 +7,7 @@
w1 -= w2 // BPF_SUB | BPF_X w1 -= w2 // BPF_SUB | BPF_X
w2 *= w3 // BPF_MUL | BPF_X w2 *= w3 // BPF_MUL | BPF_X
w3 /= w4 // BPF_DIV | BPF_X w3 /= w4 // BPF_DIV | BPF_X
// CHECK: 84 11 00 00 00 00 00 00 w1 = -w1 // CHECK: 84 01 00 00 00 00 00 00 w1 = -w1
// CHECK: 0c 10 00 00 00 00 00 00 w0 += w1 // CHECK: 0c 10 00 00 00 00 00 00 w0 += w1
// CHECK: 1c 21 00 00 00 00 00 00 w1 -= w2 // CHECK: 1c 21 00 00 00 00 00 00 w1 -= w2
// CHECK: 2c 32 00 00 00 00 00 00 w2 *= w3 // CHECK: 2c 32 00 00 00 00 00 00 w2 *= w3

4
llvm/test/MC/BPF/insn-unit.s
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@ -118,7 +118,7 @@
// CHECK: 3f 43 00 00 00 00 00 00 r3 /= r4 // CHECK: 3f 43 00 00 00 00 00 00 r3 /= r4
Llabel0 : Llabel0 :
r0 = -r0 // BPF_NEG r2 = -r2 // BPF_NEG
r4 |= r5 // BPF_OR | BPF_X r4 |= r5 // BPF_OR | BPF_X
r5 &= r6 // BPF_AND | BPF_X r5 &= r6 // BPF_AND | BPF_X
r6 <<= r7 // BPF_LSH | BPF_X r6 <<= r7 // BPF_LSH | BPF_X
@ -127,7 +127,7 @@ Llabel0 :
r9 = r10 // BPF_MOV | BPF_X r9 = r10 // BPF_MOV | BPF_X
r10 s>>= r0 // BPF_ARSH | BPF_X r10 s>>= r0 // BPF_ARSH | BPF_X
// CHECK:Llabel0: // CHECK:Llabel0:
// CHECK: 87 00 00 00 00 00 00 00 r0 = -r0 // CHECK: 87 02 00 00 00 00 00 00 r2 = -r2
// CHECK: 4f 54 00 00 00 00 00 00 r4 |= r5 // CHECK: 4f 54 00 00 00 00 00 00 r4 |= r5
// CHECK: 5f 65 00 00 00 00 00 00 r5 &= r6 // CHECK: 5f 65 00 00 00 00 00 00 r5 &= r6
// CHECK: 6f 76 00 00 00 00 00 00 r6 <<= r7 // CHECK: 6f 76 00 00 00 00 00 00 r6 <<= r7