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Add forms of CMP, SUBCC, and a few branches, and some comments. 

llvm-svn: 13419
This commit is contained in:
Brian Gaeke 2004-05-08 04:21:32 +00:00
parent f3a479f04a
commit b56f1c9c10
1 changed files with 13 additions and 0 deletions
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13
llvm/lib/Target/SparcV8/SparcV8InstrInfo.td
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@ -47,10 +47,16 @@ def ADJCALLSTACKUP : InstV8 {
}
// Section A.3 - Synthetic Instructions, p. 85
// special cases of JMPL:
let isReturn = 1, isTerminator = 1, simm13 = 8 in
def RET : F3_2<2, 0b111000, "ret">;
let isReturn = 1, isTerminator = 1, simm13 = 8 in
def RETL: F3_2<2, 0b111000, "retl">;
// CMP is a special case of SUBCC where destination is ignored, by setting it to
// %g0 (hardwired zero).
// FIXME: should keep track of the fact that it defs the integer condition codes
let rd = 0 in
def CMPri: F3_2<2, 0b010100, "cmp">;
// Section B.1 - Load Integer Instructions, p. 90
def LDSBmr: F3_2<3, 0b001001, "ldsb">;
@ -96,6 +102,7 @@ def ADDrr : F3_1<2, 0b000000, "add">;
// Section B.15 - Subtract Instructions, p. 110
def SUBrr : F3_1<2, 0b000100, "sub">;
def SUBCCrr : F3_1<2, 0b010100, "subcc">;
def SUBCCri : F3_2<2, 0b010100, "subcc">;
// Section B.18 - Multiply Instructions, p. 113
def UMULrr : F3_1<2, 0b001010, "umul">;
@ -117,6 +124,12 @@ def SAVEri : F3_2<2, 0b111100, "save">; // save r, i, r
def RESTORErr : F3_1<2, 0b111101, "restore">; // restore r, r, r
def RESTOREri : F3_2<2, 0b111101, "restore">; // restore r, i, r
// Section B.21 - Branch on Integer Condition Codes Instructions, p. 119
def BA : F2_2<0b1000, 0b010, "ba">;
def BN : F2_2<0b0000, 0b010, "bn">;
def BNE : F2_2<0b1001, 0b010, "bne">;
def BE : F2_2<0b0001, 0b010, "be">;
// Section B.24 - Call and Link Instruction, p. 125
// This is the only Format 1 instruction
def CALL : InstV8 {