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[SparcV9] Use separate instruction patterns for 64 bit arithmetic instructions instead of reusing 32 bit instruction patterns.

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This is done to avoid spilling the result of the 64-bit instructions to a 4-byte slot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198157 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Venkatraman Govindaraju 2013-12-29 07:15:09 +00:00
parent bfefc8d071
commit a71d72a059
4 changed files with 197 additions and 38 deletions
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4
lib/Target/Sparc/SparcAsmPrinter.cpp
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@ -227,7 +227,7 @@ void SparcAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
if (MI->getOpcode() == SP::CALL)
assert(TF == SPII::MO_NO_FLAG &&
"Cannot handle target flags on call address");
else if (MI->getOpcode() == SP::SETHIi)
else if (MI->getOpcode() == SP::SETHIi || MI->getOpcode() == SP::SETHIXi)
assert((TF == SPII::MO_HI || TF == SPII::MO_H44 || TF == SPII::MO_HH
|| TF == SPII::MO_TLS_GD_HI22
|| TF == SPII::MO_TLS_LDM_HI22
@ -250,7 +250,7 @@ void SparcAsmPrinter::printOperand(const MachineInstr *MI, int opNum,
else if (MI->getOpcode() == SP::TLS_LDXrr)
assert(TF == SPII::MO_TLS_IE_LDX &&
"Cannot handle target flags on ldx for TLS");
else if (MI->getOpcode() == SP::XORri)
else if (MI->getOpcode() == SP::XORri || MI->getOpcode() == SP::XORXri)
assert((TF == SPII::MO_TLS_LDO_LOX10 || TF == SPII::MO_TLS_LE_LOX10) &&
"Cannot handle target flags on xor for TLS");
else

75
lib/Target/Sparc/SparcInstr64Bit.td
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@ -141,32 +141,36 @@ def : Pat<(i64 imm:$val),
let Predicates = [Is64Bit] in {
// Register-register instructions.
defm ANDX : F3_12<"and", 0b000001, and, I64Regs, i64, i64imm>;
defm ORX : F3_12<"or", 0b000010, or, I64Regs, i64, i64imm>;
defm XORX : F3_12<"xor", 0b000011, xor, I64Regs, i64, i64imm>;
def : Pat<(and i64:$a, i64:$b), (ANDrr $a, $b)>;
def : Pat<(or i64:$a, i64:$b), (ORrr $a, $b)>;
def : Pat<(xor i64:$a, i64:$b), (XORrr $a, $b)>;
def ANDXNrr : F3_1<2, 0b000101,
(outs I64Regs:$dst), (ins I64Regs:$b, I64Regs:$c),
"andn $b, $c, $dst",
[(set i64:$dst, (and i64:$b, (not i64:$c)))]>;
def ORXNrr : F3_1<2, 0b000110,
(outs I64Regs:$dst), (ins I64Regs:$b, I64Regs:$c),
"orn $b, $c, $dst",
[(set i64:$dst, (or i64:$b, (not i64:$c)))]>;
def XNORXrr : F3_1<2, 0b000111,
(outs I64Regs:$dst), (ins I64Regs:$b, I64Regs:$c),
"xnor $b, $c, $dst",
[(set i64:$dst, (not (xor i64:$b, i64:$c)))]>;
def : Pat<(and i64:$a, (not i64:$b)), (ANDNrr $a, $b)>;
def : Pat<(or i64:$a, (not i64:$b)), (ORNrr $a, $b)>;
def : Pat<(xor i64:$a, (not i64:$b)), (XNORrr $a, $b)>;
def : Pat<(add i64:$a, i64:$b), (ADDrr $a, $b)>;
def : Pat<(sub i64:$a, i64:$b), (SUBrr $a, $b)>;
defm ADDX : F3_12<"add", 0b000000, add, I64Regs, i64, i64imm>;
defm SUBX : F3_12<"sub", 0b000100, sub, I64Regs, i64, i64imm>;
def : Pat<(SPcmpicc i64:$a, i64:$b), (CMPrr $a, $b)>;
def : Pat<(tlsadd i64:$a, i64:$b, tglobaltlsaddr:$sym),
(TLS_ADDrr $a, $b, $sym)>;
def TLS_ADDXrr : F3_1<2, 0b000000, (outs I64Regs:$rd),
(ins I64Regs:$rs1, I64Regs:$rs2, TLSSym:$sym),
"add $rs1, $rs2, $rd, $sym",
[(set i64:$rd,
(tlsadd i64:$rs1, i64:$rs2, tglobaltlsaddr:$sym))]>;
// Register-immediate instructions.
def : Pat<(and i64:$a, (i64 simm13:$b)), (ANDri $a, (as_i32imm $b))>;
def : Pat<(or i64:$a, (i64 simm13:$b)), (ORri $a, (as_i32imm $b))>;
def : Pat<(xor i64:$a, (i64 simm13:$b)), (XORri $a, (as_i32imm $b))>;
def : Pat<(add i64:$a, (i64 simm13:$b)), (ADDri $a, (as_i32imm $b))>;
def : Pat<(sub i64:$a, (i64 simm13:$b)), (SUBri $a, (as_i32imm $b))>;
def : Pat<(SPcmpicc i64:$a, (i64 simm13:$b)), (CMPri $a, (as_i32imm $b))>;
def : Pat<(ctpop i64:$src), (POPCrr $src)>;
@ -402,3 +406,38 @@ def : Pat<(SPselectfcc (i64 simm11:$t), i64:$f, imm:$cond),
(MOVFCCri (as_i32imm $t), $f, imm:$cond)>;
} // Predicates = [Is64Bit]
// 64 bit SETHI
let Predicates = [Is64Bit] in {
def SETHIXi : F2_1<0b100,
(outs IntRegs:$rd), (ins i64imm:$imm22),
"sethi $imm22, $rd",
[(set i64:$rd, SETHIimm:$imm22)]>;
}
// Global addresses, constant pool entries
let Predicates = [Is64Bit] in {
def : Pat<(SPhi tglobaladdr:$in), (SETHIi tglobaladdr:$in)>;
def : Pat<(SPlo tglobaladdr:$in), (ORXri (i64 G0), tglobaladdr:$in)>;
def : Pat<(SPhi tconstpool:$in), (SETHIi tconstpool:$in)>;
def : Pat<(SPlo tconstpool:$in), (ORXri (i64 G0), tconstpool:$in)>;
// GlobalTLS addresses
def : Pat<(SPhi tglobaltlsaddr:$in), (SETHIi tglobaltlsaddr:$in)>;
def : Pat<(SPlo tglobaltlsaddr:$in), (ORXri (i64 G0), tglobaltlsaddr:$in)>;
def : Pat<(add (SPhi tglobaltlsaddr:$in1), (SPlo tglobaltlsaddr:$in2)),
(ADDXri (SETHIXi tglobaltlsaddr:$in1), (tglobaltlsaddr:$in2))>;
def : Pat<(xor (SPhi tglobaltlsaddr:$in1), (SPlo tglobaltlsaddr:$in2)),
(XORXri (SETHIXi tglobaltlsaddr:$in1), (tglobaltlsaddr:$in2))>;
// Blockaddress
def : Pat<(SPhi tblockaddress:$in), (SETHIi tblockaddress:$in)>;
def : Pat<(SPlo tblockaddress:$in), (ORXri (i64 G0), tblockaddress:$in)>;
// Add reg, lo. This is used when taking the addr of a global/constpool entry.
def : Pat<(add iPTR:$r, (SPlo tglobaladdr:$in)), (ADDXri $r, tglobaladdr:$in)>;
def : Pat<(add iPTR:$r, (SPlo tconstpool:$in)), (ADDXri $r, tconstpool:$in)>;
def : Pat<(add iPTR:$r, (SPlo tblockaddress:$in)),
(ADDXri $r, tblockaddress:$in)>;
}

40
lib/Target/Sparc/SparcInstrInfo.td
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@ -210,15 +210,16 @@ def FCC_O : FCC_VAL<29>; // Ordered
//===----------------------------------------------------------------------===//
/// F3_12 multiclass - Define a normal F3_1/F3_2 pattern in one shot.
multiclass F3_12<string OpcStr, bits<6> Op3Val, SDNode OpNode> {
multiclass F3_12<string OpcStr, bits<6> Op3Val, SDNode OpNode,
RegisterClass RC, ValueType Ty, Operand immOp> {
def rr : F3_1<2, Op3Val,
(outs IntRegs:$dst), (ins IntRegs:$b, IntRegs:$c),
(outs RC:$dst), (ins RC:$b, RC:$c),
!strconcat(OpcStr, " $b, $c, $dst"),
[(set i32:$dst, (OpNode i32:$b, i32:$c))]>;
[(set Ty:$dst, (OpNode Ty:$b, Ty:$c))]>;
def ri : F3_2<2, Op3Val,
(outs IntRegs:$dst), (ins IntRegs:$b, i32imm:$c),
(outs RC:$dst), (ins RC:$b, immOp:$c),
!strconcat(OpcStr, " $b, $c, $dst"),
[(set i32:$dst, (OpNode i32:$b, (i32 simm13:$c)))]>;
[(set Ty:$dst, (OpNode Ty:$b, (Ty simm13:$c)))]>;
}
/// F3_12np multiclass - Define a normal F3_1/F3_2 pattern in one shot, with no
@ -464,7 +465,7 @@ let rd = 0, imm22 = 0 in
def NOP : F2_1<0b100, (outs), (ins), "nop", []>;
// Section B.11 - Logical Instructions, p. 106
defm AND : F3_12<"and", 0b000001, and>;
defm AND : F3_12<"and", 0b000001, and, IntRegs, i32, i32imm>;
def ANDNrr : F3_1<2, 0b000101,
(outs IntRegs:$dst), (ins IntRegs:$b, IntRegs:$c),
@ -474,7 +475,7 @@ def ANDNri : F3_2<2, 0b000101,
(outs IntRegs:$dst), (ins IntRegs:$b, i32imm:$c),
"andn $b, $c, $dst", []>;
defm OR : F3_12<"or", 0b000010, or>;
defm OR : F3_12<"or", 0b000010, or, IntRegs, i32, i32imm>;
def ORNrr : F3_1<2, 0b000110,
(outs IntRegs:$dst), (ins IntRegs:$b, IntRegs:$c),
@ -483,7 +484,7 @@ def ORNrr : F3_1<2, 0b000110,
def ORNri : F3_2<2, 0b000110,
(outs IntRegs:$dst), (ins IntRegs:$b, i32imm:$c),
"orn $b, $c, $dst", []>;
defm XOR : F3_12<"xor", 0b000011, xor>;
defm XOR : F3_12<"xor", 0b000011, xor, IntRegs, i32, i32imm>;
def XNORrr : F3_1<2, 0b000111,
(outs IntRegs:$dst), (ins IntRegs:$b, IntRegs:$c),
@ -494,12 +495,12 @@ def XNORri : F3_2<2, 0b000111,
"xnor $b, $c, $dst", []>;
// Section B.12 - Shift Instructions, p. 107
defm SLL : F3_12<"sll", 0b100101, shl>;
defm SRL : F3_12<"srl", 0b100110, srl>;
defm SRA : F3_12<"sra", 0b100111, sra>;
defm SLL : F3_12<"sll", 0b100101, shl, IntRegs, i32, i32imm>;
defm SRL : F3_12<"srl", 0b100110, srl, IntRegs, i32, i32imm>;
defm SRA : F3_12<"sra", 0b100111, sra, IntRegs, i32, i32imm>;
// Section B.13 - Add Instructions, p. 108
defm ADD : F3_12<"add", 0b000000, add>;
defm ADD : F3_12<"add", 0b000000, add, IntRegs, i32, i32imm>;
// "LEA" forms of add (patterns to make tblgen happy)
let Predicates = [Is32Bit] in
@ -509,18 +510,18 @@ let Predicates = [Is32Bit] in
[(set iPTR:$dst, ADDRri:$addr)]>;
let Defs = [ICC] in
defm ADDCC : F3_12<"addcc", 0b010000, addc>;
defm ADDCC : F3_12<"addcc", 0b010000, addc, IntRegs, i32, i32imm>;
let Uses = [ICC], Defs = [ICC] in
defm ADDX : F3_12<"addxcc", 0b011000, adde>;
defm ADDE : F3_12<"addxcc", 0b011000, adde, IntRegs, i32, i32imm>;
// Section B.15 - Subtract Instructions, p. 110
defm SUB : F3_12 <"sub" , 0b000100, sub>;
defm SUB : F3_12 <"sub" , 0b000100, sub, IntRegs, i32, i32imm>;
let Uses = [ICC], Defs = [ICC] in
defm SUBX : F3_12 <"subxcc" , 0b011100, sube>;
defm SUBE : F3_12 <"subxcc" , 0b011100, sube, IntRegs, i32, i32imm>;
let Defs = [ICC] in
defm SUBCC : F3_12 <"subcc", 0b010100, subc>;
defm SUBCC : F3_12 <"subcc", 0b010100, subc, IntRegs, i32, i32imm>;
let Defs = [ICC], rd = 0 in {
def CMPrr : F3_1<2, 0b010100,
@ -542,7 +543,7 @@ let Uses = [ICC], Defs = [ICC] in
// Section B.18 - Multiply Instructions, p. 113
let Defs = [Y] in {
defm UMUL : F3_12np<"umul", 0b001010>;
defm SMUL : F3_12 <"smul", 0b001011, mul>;
defm SMUL : F3_12 <"smul", 0b001011, mul, IntRegs, i32, i32imm>;
}
// Section B.19 - Divide Instructions, p. 115
@ -987,6 +988,8 @@ def : Pat<(i32 imm:$val),
// Global addresses, constant pool entries
let Predicates = [Is32Bit] in {
def : Pat<(SPhi tglobaladdr:$in), (SETHIi tglobaladdr:$in)>;
def : Pat<(SPlo tglobaladdr:$in), (ORri (i32 G0), tglobaladdr:$in)>;
def : Pat<(SPhi tconstpool:$in), (SETHIi tconstpool:$in)>;
@ -1009,6 +1012,7 @@ def : Pat<(add iPTR:$r, (SPlo tglobaladdr:$in)), (ADDri $r, tglobaladdr:$in)>;
def : Pat<(add iPTR:$r, (SPlo tconstpool:$in)), (ADDri $r, tconstpool:$in)>;
def : Pat<(add iPTR:$r, (SPlo tblockaddress:$in)),
(ADDri $r, tblockaddress:$in)>;
}
// Calls:
def : Pat<(call tglobaladdr:$dst),

116
test/CodeGen/SPARC/64spill.ll Normal file
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@ -0,0 +1,116 @@
; RUN: llc < %s -march=sparcv9 | FileCheck %s
target datalayout = "E-i64:64-n32:64-S128"
target triple = "sparc64-sun-sparc"
; CHECK-LABEL: test_and_spill
; CHECK: and %i0, %i1, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_and_spill(i64 %a, i64 %b) {
entry:
%r0 = and i64 %a, %b
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_or_spill
; CHECK: or %i0, %i1, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_or_spill(i64 %a, i64 %b) {
entry:
%r0 = or i64 %a, %b
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_xor_spill
; CHECK: xor %i0, %i1, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_xor_spill(i64 %a, i64 %b) {
entry:
%r0 = xor i64 %a, %b
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_add_spill
; CHECK: add %i0, %i1, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_add_spill(i64 %a, i64 %b) {
entry:
%r0 = add i64 %a, %b
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_sub_spill
; CHECK: sub %i0, %i1, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_sub_spill(i64 %a, i64 %b) {
entry:
%r0 = sub i64 %a, %b
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_andi_spill
; CHECK: and %i0, 1729, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_andi_spill(i64 %a) {
entry:
%r0 = and i64 %a, 1729
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_ori_spill
; CHECK: or %i0, 1729, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_ori_spill(i64 %a) {
entry:
%r0 = or i64 %a, 1729
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_xori_spill
; CHECK: xor %i0, 1729, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_xori_spill(i64 %a) {
entry:
%r0 = xor i64 %a, 1729
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_addi_spill
; CHECK: add %i0, 1729, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_addi_spill(i64 %a) {
entry:
%r0 = add i64 %a, 1729
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}
; CHECK-LABEL: test_subi_spill
; CHECK: add %i0, -1729, [[R:%[gilo][0-7]]]
; CHECK: stx [[R]], [%fp+{{.+}}]
; CHECK: ldx [%fp+{{.+}}, %i0
define i64 @test_subi_spill(i64 %a) {
entry:
%r0 = sub i64 %a, 1729
%0 = tail call i64 asm sideeffect "#$0 $1", "=r,r,~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{i6},~{i7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o6}"(i64 %r0)
ret i64 %r0
}