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ARM assembler support for vpush/vpop.

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Add aliases for the vpush/vpop mnemonics to the VFP load/store multiple
writeback instructions w/ SP as the base pointer.

rdar://9683231



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133932 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-06-27 20:00:07 +00:00
parent 2ca7f4d2f3
commit 0d06bb9548
2 changed files with 28 additions and 0 deletions
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9
lib/Target/ARM/ARMInstrVFP.td
View File

@ -166,6 +166,15 @@ defm VSTM : vfp_ldst_mult<"vstm", 0, IIC_fpLoad_m, IIC_fpLoad_mu>;
def : MnemonicAlias<"vldm", "vldmia">;
def : MnemonicAlias<"vstm", "vstmia">;
def : InstAlias<"vpush${p} $r", (VSTMDDB_UPD SP, pred:$p, dpr_reglist:$r)>,
Requires<[HasVFP2]>;
def : InstAlias<"vpush${p} $r", (VSTMSDB_UPD SP, pred:$p, spr_reglist:$r)>,
Requires<[HasVFP2]>;
def : InstAlias<"vpop${p} $r", (VLDMDIA_UPD SP, pred:$p, dpr_reglist:$r)>,
Requires<[HasVFP2]>;
def : InstAlias<"vpop${p} $r", (VLDMSIA_UPD SP, pred:$p, spr_reglist:$r)>,
Requires<[HasVFP2]>;
// FLDMX, FSTMX - mixing S/D registers for pre-armv6 cores
//===----------------------------------------------------------------------===//

19
test/MC/ARM/vpush-vpop.s Normal file
View File

@ -0,0 +1,19 @@
@ RUN: llvm-mc -triple armv7-unknown-unknown -show-encoding < %s | FileCheck --check-prefix=CHECK-ARM %s
@ RUN: llvm-mc -triple thumbv7-unknown-unknown -show-encoding < %s | FileCheck --check-prefix=CHECK-THUMB %s
foo:
@ CHECK: foo
vpush {d8, d9, d10, d11, d12}
vpush {s8, s9, s10, s11, s12}
vpop {d8, d9, d10, d11, d12}
vpop {s8, s9, s10, s11, s12}
@ CHECK-THUMB: vpush {d8, d9, d10, d11, d12} @ encoding: [0x2d,0xed,0x0a,0x8b]
@ CHECK-THUMB: vpush {s8, s9, s10, s11, s12} @ encoding: [0x2d,0xed,0x05,0x4a]
@ CHECK-THUMB: vpop {d8, d9, d10, d11, d12} @ encoding: [0xbd,0xec,0x0a,0x8b]
@ CHECK-THUMB: vpop {s8, s9, s10, s11, s12} @ encoding: [0xbd,0xec,0x05,0x4a]
@ CHECK-ARM: vpush {d8, d9, d10, d11, d12} @ encoding: [0x0a,0x8b,0x2d,0xed]
@ CHECK-ARM: vpush {s8, s9, s10, s11, s12} @ encoding: [0x05,0x4a,0x2d,0xed]
@ CHECK-ARM: vpop {d8, d9, d10, d11, d12} @ encoding: [0x0a,0x8b,0xbd,0xec]
@ CHECK-ARM: vpop {s8, s9, s10, s11, s12} @ encoding: [0x05,0x4a,0xbd,0xec]