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| author | Bob Wilson <bob.wilson@apple.com> | 2009-10-26 22:59:12 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2009-10-26 22:59:12 +0000 |
| commit | dda9583e5194c08ddd409f3e1c211e17acd6d5b8 (patch) | |
| tree | e906607bb8f84bb674ef0594d42e4f01d05ee5db /lib | |
| parent | d2d438e58da4d492d36b9f4b7e5eb917968a7964 (diff) | |
| download | external_llvm-dda9583e5194c08ddd409f3e1c211e17acd6d5b8.zip external_llvm-dda9583e5194c08ddd409f3e1c211e17acd6d5b8.tar.gz external_llvm-dda9583e5194c08ddd409f3e1c211e17acd6d5b8.tar.bz2 | |
Try to get ahead of Johnny Chen and pro-actively add some more ARM encoding
bits. Johnny, please review -- I do not have a good track record of getting
these right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85173 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index 74101c0..b692175 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -1092,6 +1092,7 @@ defm SBC : AI1_adde_sube_irs<0b0110, "sbc", def RSBri : AsI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm, IIC_iALUi, "rsb", " $dst, $a, $b", [(set GPR:$dst, (sub so_imm:$b, GPR:$a))]> { + let Inst{20} = 0; let Inst{25} = 1; } @@ -1100,6 +1101,7 @@ def RSBrs : AsI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm, [(set GPR:$dst, (sub so_reg:$b, GPR:$a))]> { let Inst{4} = 1; let Inst{7} = 0; + let Inst{20} = 0; let Inst{25} = 0; } @@ -1126,12 +1128,18 @@ def RSCri : AsI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm, IIC_iALUi, "rsc", " $dst, $a, $b", [(set GPR:$dst, (sube so_imm:$b, GPR:$a))]>, Requires<[IsARM, CarryDefIsUnused]> { + let Inst{20} = 0; let Inst{25} = 1; } def RSCrs : AsI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm, IIC_iALUsr, "rsc", " $dst, $a, $b", [(set GPR:$dst, (sube so_reg:$b, GPR:$a))]>, - Requires<[IsARM, CarryDefIsUnused]>; + Requires<[IsARM, CarryDefIsUnused]> { + let Inst{4} = 1; + let Inst{7} = 0; + let Inst{20} = 0; + let Inst{25} = 0; +} } // FIXME: Allow these to be predicated. @@ -1140,12 +1148,18 @@ def RSCSri : AXI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm, IIC_iALUi, "rscs $dst, $a, $b", [(set GPR:$dst, (sube so_imm:$b, GPR:$a))]>, Requires<[IsARM, CarryDefIsUnused]> { + let Inst{20} = 1; let Inst{25} = 1; } def RSCSrs : AXI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm, IIC_iALUsr, "rscs $dst, $a, $b", [(set GPR:$dst, (sube so_reg:$b, GPR:$a))]>, - Requires<[IsARM, CarryDefIsUnused]>; + Requires<[IsARM, CarryDefIsUnused]> { + let Inst{4} = 1; + let Inst{7} = 0; + let Inst{20} = 1; + let Inst{25} = 0; +} } // (sub X, imm) gets canonicalized to (add X, -imm). Match this form. |