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Change latency of setuw and setsw to 2 cycles. 

llvm-svn: 681
This commit is contained in:
Vikram S. Adve 2001-09-30 23:46:57 +00:00
parent 813ffcc4f6
commit 40378e32cd
1 changed files with 5 additions and 4 deletions
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9
llvm/lib/Target/Sparc/SparcInstr.def
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@ -38,16 +38,17 @@
// instr class flags (defined in MachineInstrInfo.h)
I(NOP, "nop", 0, -1, 0, false, 0, 1, SPARC_NONE, M_NOP_FLAG)
I(NOP, "nop", 0, -1, 0, false, 0, 1, SPARC_NONE, M_NOP_FLAG)
// Synthetic SPARC assembly opcodes for setting a register to a constant.
// Max immediate constant should be ignored for both these instructions.
I(SETSW, "setsw", 2, 1, 0, true , 0, 1, SPARC_IEUN, M_INT_FLAG | M_ARITH_FLAG)
I(SETUW, "setuw", 2, 1, 0, false, 0, 1, SPARC_IEUN, M_INT_FLAG | M_LOGICAL_FLAG | M_ARITH_FLAG)
// Use a latency > 1 since this may generate as many as 3 instructions.
I(SETSW, "setsw", 2, 1, 0, true , 0, 2, SPARC_IEUN, M_INT_FLAG | M_ARITH_FLAG)
I(SETUW, "setuw", 2, 1, 0, false, 0, 2, SPARC_IEUN, M_INT_FLAG | M_LOGICAL_FLAG | M_ARITH_FLAG)
// Set high-order bits of register and clear low-order bits
I(SETHI, "sethi", 2, 1, B22, false, 0, 1, SPARC_IEUN, M_INT_FLAG | M_LOGICAL_FLAG | M_ARITH_FLAG)
// Add or add with carry.
// Immed bit specifies if second operand is immediate(1) or register(0)
I(ADD , "add", 3, 2, B12, true , 0, 1, SPARC_IEUN, M_INT_FLAG | M_ARITH_FLAG)