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llvm-mirror/test/CodeGen/SPARC/64bit.ll
Tim Northover 31e1362588 TableGen: fix operand counting for aliases 
TableGen has a fairly dubious heuristic to decide whether an alias should be
printed: does the alias have lest operands than the real instruction. This is
bad enough (particularly with no way to override it), but it should at least be
calculated consistently for both strings.

This patch implements that logic: first get the *correct* string for the
variant, in the same way as the Matcher, without guessing; then count the
number of whitespace chars.

There are basically 4 changes this brings about after the previous
commits; all of these appear to be good, so I have changed the tests:

+ ARM64: we print "neg X, Y" instead of "sub X, xzr, Y".
+ ARM64: we skip implicit "uxtx" and "uxtw" modifiers.
+ Sparc: we print "mov A, B" instead of "or %g0, A, B".
+ Sparc: we print "fcmpX A, B" instead of "fcmpX %fcc0, A, B"

llvm-svn: 208969
2014-05-16 09:42:04 +00:00

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; RUN: llc < %s -march=sparcv9 -mattr=+popc -disable-sparc-delay-filler -disable-sparc-leaf-proc | FileCheck %s
; RUN: llc < %s -march=sparcv9 -mattr=+popc | FileCheck %s -check-prefix=OPT
; CHECK-LABEL: ret2:
; CHECK: mov %i1, %i0
; OPT-LABEL: ret2:
; OPT: retl
; OPT: mov %o1, %o0
define i64 @ret2(i64 %a, i64 %b) {
ret i64 %b
}
; CHECK: shl_imm
; CHECK: sllx %i0, 7, %i0
; OPT-LABEL: shl_imm:
; OPT: retl
; OPT: sllx %o0, 7, %o0
define i64 @shl_imm(i64 %a) {
%x = shl i64 %a, 7
ret i64 %x
}
; CHECK: sra_reg
; CHECK: srax %i0, %i1, %i0
; OPT-LABEL: sra_reg:
; OPT: retl
; OPT: srax %o0, %o1, %o0
define i64 @sra_reg(i64 %a, i64 %b) {
%x = ashr i64 %a, %b
ret i64 %x
}
; Immediate materialization. Many of these patterns could actually be merged
; into the restore instruction:
;
; restore %g0, %g0, %o0
;
; CHECK: ret_imm0
; CHECK: mov 0, %i0
; OPT: ret_imm0
; OPT: retl
; OPT: mov 0, %o0
define i64 @ret_imm0() {
ret i64 0
}
; CHECK: ret_simm13
; CHECK: mov -4096, %i0
; OPT: ret_simm13
; OPT: retl
; OPT: mov -4096, %o0
define i64 @ret_simm13() {
ret i64 -4096
}
; CHECK: ret_sethi
; CHECK: sethi 4, %i0
; CHECK-NOT: or
; CHECK: restore
; OPT: ret_sethi
; OPT: retl
; OPT: sethi 4, %o0
define i64 @ret_sethi() {
ret i64 4096
}
; CHECK: ret_sethi_or
; CHECK: sethi 4, [[R:%[goli][0-7]]]
; CHECK: or [[R]], 1, %i0
; OPT: ret_sethi_or
; OPT: sethi 4, [[R:%[go][0-7]]]
; OPT: retl
; OPT: or [[R]], 1, %o0
define i64 @ret_sethi_or() {
ret i64 4097
}
; CHECK: ret_nimm33
; CHECK: sethi 4, [[R:%[goli][0-7]]]
; CHECK: xor [[R]], -4, %i0
; OPT: ret_nimm33
; OPT: sethi 4, [[R:%[go][0-7]]]
; OPT: retl
; OPT: xor [[R]], -4, %o0
define i64 @ret_nimm33() {
ret i64 -4100
}
; CHECK: ret_bigimm
; CHECK: sethi
; CHECK: sethi
define i64 @ret_bigimm() {
ret i64 6800754272627607872
}
; CHECK: ret_bigimm2
; CHECK: sethi 1048576
define i64 @ret_bigimm2() {
ret i64 4611686018427387904 ; 0x4000000000000000
}
; CHECK: reg_reg_alu
; CHECK: add %i0, %i1, [[R0:%[goli][0-7]]]
; CHECK: sub [[R0]], %i2, [[R1:%[goli][0-7]]]
; CHECK: andn [[R1]], %i0, %i0
define i64 @reg_reg_alu(i64 %x, i64 %y, i64 %z) {
%a = add i64 %x, %y
%b = sub i64 %a, %z
%c = xor i64 %x, -1
%d = and i64 %b, %c
ret i64 %d
}
; CHECK: reg_imm_alu
; CHECK: add %i0, -5, [[R0:%[goli][0-7]]]
; CHECK: xor [[R0]], 2, %i0
define i64 @reg_imm_alu(i64 %x, i64 %y, i64 %z) {
%a = add i64 %x, -5
%b = xor i64 %a, 2
ret i64 %b
}
; CHECK: loads
; CHECK: ldx [%i0]
; CHECK: stx %
; CHECK: ld [%i1]
; CHECK: st %
; CHECK: ldsw [%i2]
; CHECK: stx %
; CHECK: ldsh [%i3]
; CHECK: sth %
define i64 @loads(i64* %p, i32* %q, i32* %r, i16* %s) {
%a = load i64* %p
%ai = add i64 1, %a
store i64 %ai, i64* %p
%b = load i32* %q
%b2 = zext i32 %b to i64
%bi = trunc i64 %ai to i32
store i32 %bi, i32* %q
%c = load i32* %r
%c2 = sext i32 %c to i64
store i64 %ai, i64* %p
%d = load i16* %s
%d2 = sext i16 %d to i64
%di = trunc i64 %ai to i16
store i16 %di, i16* %s
%x1 = add i64 %a, %b2
%x2 = add i64 %c2, %d2
%x3 = add i64 %x1, %x2
ret i64 %x3
}
; CHECK: load_bool
; CHECK: ldub [%i0], %i0
define i64 @load_bool(i1* %p) {
%a = load i1* %p
%b = zext i1 %a to i64
ret i64 %b
}
; CHECK: stores
; CHECK: ldx [%i0+8], [[R:%[goli][0-7]]]
; CHECK: stx [[R]], [%i0+16]
; CHECK: st [[R]], [%i1+-8]
; CHECK: sth [[R]], [%i2+40]
; CHECK: stb [[R]], [%i3+-20]
define void @stores(i64* %p, i32* %q, i16* %r, i8* %s) {
%p1 = getelementptr i64* %p, i64 1
%p2 = getelementptr i64* %p, i64 2
%pv = load i64* %p1
store i64 %pv, i64* %p2
%q2 = getelementptr i32* %q, i32 -2
%qv = trunc i64 %pv to i32
store i32 %qv, i32* %q2
%r2 = getelementptr i16* %r, i16 20
%rv = trunc i64 %pv to i16
store i16 %rv, i16* %r2
%s2 = getelementptr i8* %s, i8 -20
%sv = trunc i64 %pv to i8
store i8 %sv, i8* %s2
ret void
}
; CHECK: promote_shifts
; CHECK: ldub [%i0], [[R:%[goli][0-7]]]
; CHECK: sll [[R]], [[R]], %i0
define i8 @promote_shifts(i8* %p) {
%L24 = load i8* %p
%L32 = load i8* %p
%B36 = shl i8 %L24, %L32
ret i8 %B36
}
; CHECK: multiply
; CHECK: mulx %i0, %i1, %i0
define i64 @multiply(i64 %a, i64 %b) {
%r = mul i64 %a, %b
ret i64 %r
}
; CHECK: signed_divide
; CHECK: sdivx %i0, %i1, %i0
define i64 @signed_divide(i64 %a, i64 %b) {
%r = sdiv i64 %a, %b
ret i64 %r
}
; CHECK: unsigned_divide
; CHECK: udivx %i0, %i1, %i0
define i64 @unsigned_divide(i64 %a, i64 %b) {
%r = udiv i64 %a, %b
ret i64 %r
}
define void @access_fi() {
entry:
%b = alloca [32 x i8], align 1
%arraydecay = getelementptr inbounds [32 x i8]* %b, i64 0, i64 0
call void @g(i8* %arraydecay) #2
ret void
}
declare void @g(i8*)
; CHECK: expand_setcc
; CHECK: cmp %i0, 1
; CHECK: movl %xcc, 1,
define i32 @expand_setcc(i64 %a) {
%cond = icmp sle i64 %a, 0
%cast2 = zext i1 %cond to i32
%RV = sub i32 1, %cast2
ret i32 %RV
}
; CHECK: spill_i64
; CHECK: stx
; CHECK: ldx
define i64 @spill_i64(i64 %x) {
call void asm sideeffect "", "~{i0},~{i1},~{i2},~{i3},~{i4},~{i5},~{o0},~{o1},~{o2},~{o3},~{o4},~{o5},~{o7},~{l0},~{l1},~{l2},~{l3},~{l4},~{l5},~{l6},~{l7},~{g1},~{g2},~{g3},~{g4},~{g5},~{g6},~{g7}"()
ret i64 %x
}
; CHECK: bitcast_i64_f64
; CHECK: std
; CHECK: ldx
define i64 @bitcast_i64_f64(double %x) {
%y = bitcast double %x to i64
ret i64 %y
}
; CHECK: bitcast_f64_i64
; CHECK: stx
; CHECK: ldd
define double @bitcast_f64_i64(i64 %x) {
%y = bitcast i64 %x to double
ret double %y
}
; CHECK-LABEL: store_zero:
; CHECK: stx %g0, [%i0]
; CHECK: stx %g0, [%i1+8]
; OPT-LABEL: store_zero:
; OPT: stx %g0, [%o0]
; OPT: stx %g0, [%o1+8]
define i64 @store_zero(i64* nocapture %a, i64* nocapture %b) {
entry:
store i64 0, i64* %a, align 8
%0 = getelementptr inbounds i64* %b, i32 1
store i64 0, i64* %0, align 8
ret i64 0
}
; CHECK-LABEL: bit_ops
; CHECK: popc
; OPT-LABEL: bit_ops
; OPT: popc
define i64 @bit_ops(i64 %arg) {
entry:
%0 = tail call i64 @llvm.ctpop.i64(i64 %arg)
%1 = tail call i64 @llvm.ctlz.i64(i64 %arg, i1 true)
%2 = tail call i64 @llvm.cttz.i64(i64 %arg, i1 true)
%3 = tail call i64 @llvm.bswap.i64(i64 %arg)
%4 = add i64 %0, %1
%5 = add i64 %2, %3
%6 = add i64 %4, %5
ret i64 %6
}
declare i64 @llvm.ctpop.i64(i64) nounwind readnone
declare i64 @llvm.ctlz.i64(i64, i1) nounwind readnone
declare i64 @llvm.cttz.i64(i64, i1) nounwind readnone
declare i64 @llvm.bswap.i64(i64) nounwind readnone
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