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Provide operand encoding information for half-precision VCVT instructions. Found by randomized testing.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138273 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2011-08-22 21:34:00 +00:00
parent 2ac8111159
commit 838130e3b9
2 changed files with 11 additions and 8 deletions
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16
lib/Target/ARM/ARMInstrVFP.td
View File

@ -387,26 +387,26 @@ def VCVTSD : VFPAI<(outs SPR:$Sd), (ins DPR:$Dm), VFPUnaryFrm,
// Between half-precision and single-precision. For disassembly only.
// FIXME: Verify encoding after integrated assembler is working.
def VCVTBSH: ASuI<0b11101, 0b11, 0b0010, 0b01, 0, (outs SPR:$dst), (ins SPR:$a),
/* FIXME */ IIC_fpCVTSH, "vcvtb", ".f32.f16\t$dst, $a",
def VCVTBSH: ASuI<0b11101, 0b11, 0b0010, 0b01, 0, (outs SPR:$Sd), (ins SPR:$Sm),
/* FIXME */ IIC_fpCVTSH, "vcvtb", ".f32.f16\t$Sd, $Sm",
[/* For disassembly only; pattern left blank */]>;
def : ARMPat<(f32_to_f16 SPR:$a),
(i32 (COPY_TO_REGCLASS (VCVTBSH SPR:$a), GPR))>;
def VCVTBHS: ASuI<0b11101, 0b11, 0b0011, 0b01, 0, (outs SPR:$dst), (ins SPR:$a),
/* FIXME */ IIC_fpCVTHS, "vcvtb", ".f16.f32\t$dst, $a",
def VCVTBHS: ASuI<0b11101, 0b11, 0b0011, 0b01, 0, (outs SPR:$Sd), (ins SPR:$Sm),
/* FIXME */ IIC_fpCVTHS, "vcvtb", ".f16.f32\t$Sd, $Sm",
[/* For disassembly only; pattern left blank */]>;
def : ARMPat<(f16_to_f32 GPR:$a),
(VCVTBHS (COPY_TO_REGCLASS GPR:$a, SPR))>;
def VCVTTSH: ASuI<0b11101, 0b11, 0b0010, 0b11, 0, (outs SPR:$dst), (ins SPR:$a),
/* FIXME */ IIC_fpCVTSH, "vcvtt", ".f32.f16\t$dst, $a",
def VCVTTSH: ASuI<0b11101, 0b11, 0b0010, 0b11, 0, (outs SPR:$Sd), (ins SPR:$Sm),
/* FIXME */ IIC_fpCVTSH, "vcvtt", ".f32.f16\t$Sd, $Sm",
[/* For disassembly only; pattern left blank */]>;
def VCVTTHS: ASuI<0b11101, 0b11, 0b0011, 0b11, 0, (outs SPR:$dst), (ins SPR:$a),
/* FIXME */ IIC_fpCVTHS, "vcvtt", ".f16.f32\t$dst, $a",
def VCVTTHS: ASuI<0b11101, 0b11, 0b0011, 0b11, 0, (outs SPR:$Sd), (ins SPR:$Sm),
/* FIXME */ IIC_fpCVTHS, "vcvtt", ".f16.f32\t$Sd, $Sm",
[/* For disassembly only; pattern left blank */]>;
def VNEGD : ADuI<0b11101, 0b11, 0b0001, 0b01, 0,

3
test/MC/Disassembler/ARM/neon.txt
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@ -1853,3 +1853,6 @@
0x3d 0x2a 0x5e 0x6c
# CHECK: vmovvs r2, lr, s29, s30
0xe9 0x1a 0xb2 0x4e
# CHECK: vcvttmi.f32.f16 s2, s19