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| author | Tilmann Scheller <tilmann.scheller@googlemail.com> | 2013-07-16 21:52:34 +0000 |
|---|---|---|
| committer | Tilmann Scheller <tilmann.scheller@googlemail.com> | 2013-07-16 21:52:34 +0000 |
| commit | 898788c6bcc2abfe0e1c7b21c14394352963acd6 (patch) | |
| tree | e7b74d1a66510171ee689d0ca48ac27d1c812eda | |
| parent | 61cf1580750eb2ce6c20ea98a57653ef1344e7bc (diff) | |
| download | external_llvm-898788c6bcc2abfe0e1c7b21c14394352963acd6.zip external_llvm-898788c6bcc2abfe0e1c7b21c14394352963acd6.tar.gz external_llvm-898788c6bcc2abfe0e1c7b21c14394352963acd6.tar.bz2 | |
ARM: Add support for the Thumb2 PLI alternate literal form.
This adds an instruction alias to make the assembler recognize the alternate literal form: pli [PC, #+/-<imm>]
See A8.8.129 in the ARM ARM (DDI 0406C.b).
Fixes <rdar://problem/14403733>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186459 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb2.td | 3 | ||||
| -rw-r--r-- | test/MC/ARM/basic-thumb2-instructions.s | 4 |
2 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td index 8d15630..19d76e5 100644 --- a/lib/Target/ARM/ARMInstrThumb2.td +++ b/lib/Target/ARM/ARMInstrThumb2.td @@ -4427,3 +4427,6 @@ def : t2InstAlias<"ldrsh${p}.w $Rt, $addr", def : t2InstAlias<"add${p} $Rd, pc, $imm", (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>; + +// PLI with alternate literal form. +def : t2InstAlias<"pli${p} $addr", (t2PLIpci t2ldr_pcrel_imm12:$addr, pred:$p)>; diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s index 9136aa5..50a505e 100644 --- a/test/MC/ARM/basic-thumb2-instructions.s +++ b/test/MC/ARM/basic-thumb2-instructions.s @@ -1599,12 +1599,16 @@ _func: pli [r6, #33] pli [r6, #257] pli [r7, #257] + pli [pc, #+4095] + pli [pc, #-4095] @ CHECK: pli [r5, #-4] @ encoding: [0x15,0xf9,0x04,0xfc] @ CHECK: pli [r6, #32] @ encoding: [0x96,0xf9,0x20,0xf0] @ CHECK: pli [r6, #33] @ encoding: [0x96,0xf9,0x21,0xf0] @ CHECK: pli [r6, #257] @ encoding: [0x96,0xf9,0x01,0xf1] @ CHECK: pli [r7, #257] @ encoding: [0x97,0xf9,0x01,0xf1] +@ CHECK: pli [pc, #4095] @ encoding: [0x9f,0xf9,0xff,0xff] +@ CHECK: pli [pc, #-4095] @ encoding: [0x1f,0xf9,0xff,0xff] @------------------------------------------------------------------------------ |