[Sparc] Use the correct encoding for ta 3

[dcederman]

Summary

The old encoding generated a "tn %g1 + 3" instruction instead of the expected "ta 3".

[jyknight]

Yikes! Luckily this was not actually matched against a "ta 3" expression in assembly, so it only broke getFRAMEADDR...

lib/Target/Sparc/SparcInstrInfo.td

def ADJCALLSTACKUP : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
                             [(callseq_end timm:$amt1, timm:$amt2)]>;
 }
 
 let hasSideEffects = 1, mayStore = 1 in {
   let rd = 0, rs1 = 0, rs2 = 0 in
     def FLUSHW : F3_1<0b10, 0b101011, (outs), (ins),
                       "flushw",
                       [(flushw)]>, Requires<[HasV9]>;
-  let rd = 0, rs1 = 1, simm13 = 3 in
+  let rd = 8, rs1 = 0, simm13 = 3 in
     def TA3 : F3_2<0b10, 0b111010, (outs), (ins),
                    "ta 3",
                    [(flushw)]>;
 }
 
 // SELECT_CC_* - Used to implement the SELECT_CC DAG operation.  Expanded after
 // instruction selection into a branch sequence.  This has to handle all
 // permutations of selection between i32/f32/f64 on ICC and FCC.

test/CodeGen/SPARC/2011-01-11-FrameAddr.ll

-;RUN: llc -march=sparc < %s | FileCheck %s -check-prefix=V8
+;RUN: llc -march=sparc -show-mc-encoding < %s | FileCheck %s -check-prefix=V8
 ;RUN: llc -march=sparc -mattr=v9 < %s | FileCheck %s -check-prefix=V9
-;RUN: llc -march=sparc -regalloc=basic < %s | FileCheck %s -check-prefix=V8
+;RUN: llc -march=sparc -show-mc-encoding -regalloc=basic < %s | FileCheck %s -check-prefix=V8
 ;RUN: llc -march=sparc -regalloc=basic -mattr=v9 < %s | FileCheck %s -check-prefix=V9
 ;RUN: llc -march=sparcv9  < %s | FileCheck %s -check-prefix=SPARC64
 
 
 define i8* @frameaddr() nounwind readnone {
 entry:
 ;V8-LABEL: frameaddr:
 ;V8: save %sp, -96, %sp
;SPARC64:       restore
 
   %0 = tail call i8* @llvm.frameaddress(i32 0)
   ret i8* %0
 }
 
 define i8* @frameaddr2() nounwind readnone {
 entry:
 ;V8-LABEL: frameaddr2:
-;V8: ta 3
+;V8: ta 3 ! encoding: [0x91,0xd0,0x20,0x03]
 ;V8: ld [%fp+56], {{.+}}
 ;V8: ld [{{.+}}+56], {{.+}}
 ;V8: ld [{{.+}}+56], {{.+}}
 
 ;V9-LABEL: frameaddr2:
 ;V9: flushw
 ;V9: ld [%fp+56], {{.+}}
 ;V9: ld [{{.+}}+56], {{.+}}