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| author | Jim Grosbach <grosbach@apple.com> | 2011-07-21 19:57:11 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-07-21 19:57:11 +0000 |
| commit | 10c7d70a4e843b3006db9f5f583d6f6f56cc245e (patch) | |
| tree | b3e98d26af65192890473a6e8e4d707a870e4d43 | |
| parent | 45e11c7cc78e8a826e224b30a2eba4f1eb664c33 (diff) | |
ARM assembly parsing POP/PUSH mnemonics.
Aliases for LDM/STM. The single-register versions should encode to LDR/STR
with writeback, but we don't (yet) get that correct. Neither does Darwin's
system assembler, though, so that's not a deal-breaker of a limitation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135702 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 6 | ||||
| -rw-r--r-- | test/MC/ARM/basic-arm-instructions.s | 29 |
2 files changed, 35 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index a877619a2e..fdc2533fe3 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -4250,3 +4250,9 @@ def : InstAlias<"pkhbt${p} $Rd, $Rn, $Rm", (PKHBT GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>; def : InstAlias<"pkhtb${p} $Rd, $Rn, $Rm", (PKHBT GPR:$Rd, GPR:$Rn, GPR:$Rm, 0, pred:$p)>; + +// PUSH/POP aliases for STM/LDM +def : InstAlias<"push${p} $regs", + (STMDB_UPD SP, pred:$p, reglist:$regs)>; +def : InstAlias<"pop${p} $regs", + (LDMIA_UPD SP, pred:$p, reglist:$regs)>; diff --git a/test/MC/ARM/basic-arm-instructions.s b/test/MC/ARM/basic-arm-instructions.s index 968e3f84c0..da4ea0e9f5 100644 --- a/test/MC/ARM/basic-arm-instructions.s +++ b/test/MC/ARM/basic-arm-instructions.s @@ -990,6 +990,35 @@ _func: @ CHECK: pkhtb r2, r2, r3, asr #31 @ encoding: [0xd3,0x2f,0x82,0xe6] @ CHECK: pkhtb r2, r2, r3, asr #15 @ encoding: [0xd3,0x27,0x82,0xe6] +@------------------------------------------------------------------------------ +@ FIXME: PLD +@------------------------------------------------------------------------------ +@------------------------------------------------------------------------------ +@ FIXME: PLI +@------------------------------------------------------------------------------ + + +@------------------------------------------------------------------------------ +@ POP +@------------------------------------------------------------------------------ + pop {r7} + pop {r7, r8, r9, r10} + +@ FIXME: pop of a single register should encode as "ldr r7, [sp], #4" +@ CHECK-FIXME: pop {r7} @ encoding: [0x04,0x70,0x9d,0xe4] +@ CHECK: pop {r7, r8, r9, r10} @ encoding: [0x80,0x07,0xbd,0xe8] + + +@------------------------------------------------------------------------------ +@ PUSH +@------------------------------------------------------------------------------ + push {r7} + push {r7, r8, r9, r10} + +@ FIXME: push of a single register should encode as "str r7, [sp, #-4]!" +@ CHECK-FIXME: push {r7} @ encoding: [0x04,0x70,0x2d,0xe5] +@ CHECK: push {r7, r8, r9, r10} @ encoding: [0x80,0x07,0x2d,0xe9] + @------------------------------------------------------------------------------ @ STM* |