Add forms of CMP, SUBCC, and a few branches, and some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13419 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcInstrInfo.td b/lib/Target/Sparc/SparcInstrInfo.td
index ee397c8..995d7c7 100644
--- a/lib/Target/Sparc/SparcInstrInfo.td
+++ b/lib/Target/Sparc/SparcInstrInfo.td
@@ -47,10 +47,16 @@
}
// 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 @@
// 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 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 {