b3fa47cacc
- Create a new kind of stack slot: emergency_slot. - Add a get_emergency_slot() method which finds a suitable emergency slot given a list of slots already in use. - Use emergency spill slots when schedule_moves needs them.
189 lines
4.8 KiB
Plaintext
189 lines
4.8 KiB
Plaintext
test cat
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; The smallest possible function.
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function %minimal() {
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ebb0:
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trap user0
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}
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; sameln: function %minimal() native {
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; nextln: ebb0:
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; nextln: trap user0
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; nextln: }
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; Create and use values.
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; Polymorphic instructions with type suffix.
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function %ivalues() {
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ebb0:
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v0 = iconst.i32 2
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v1 = iconst.i8 6
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v2 = ishl v0, v1
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}
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; sameln: function %ivalues() native {
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; nextln: ebb0:
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; nextln: $v0 = iconst.i32 2
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; nextln: $v1 = iconst.i8 6
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; nextln: $v2 = ishl $v0, $v1
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; nextln: }
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; Create and use values.
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; Polymorphic instructions with type suffix.
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function %bvalues() {
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ebb0:
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v0 = bconst.b32 true
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v1 = bconst.b8 false
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v2 = bextend.b32 v1
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v3 = bxor v0, v2
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}
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; sameln: function %bvalues() native {
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; nextln: ebb0:
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; nextln: $v0 = bconst.b32 true
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; nextln: $v1 = bconst.b8 false
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; nextln: $v2 = bextend.b32 v1
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; nextln: $v3 = bxor v0, v2
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; nextln: }
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; Polymorphic istruction controlled by second operand.
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function %select() {
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ebb0(v90: i32, v91: i32, v92: b1):
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v0 = select v92, v90, v91
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}
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; sameln: function %select() native {
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; nextln: ebb0($v90: i32, $v91: i32, $v92: b1):
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; nextln: $v0 = select $v92, $v90, $v91
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; nextln: }
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; Lane indexes.
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function %lanes() {
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ebb0:
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v0 = iconst.i32x4 2
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v1 = extractlane v0, 3
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v2 = insertlane v0, 1, v1
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}
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; sameln: function %lanes() native {
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; nextln: ebb0:
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; nextln: $v0 = iconst.i32x4 2
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; nextln: $v1 = extractlane $v0, 3
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; nextln: $v2 = insertlane $v0, 1, $v1
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; nextln: }
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; Integer condition codes.
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function %icmp(i32, i32) {
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ebb0(v90: i32, v91: i32):
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v0 = icmp eq v90, v91
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v1 = icmp ult v90, v91
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v2 = icmp_imm sge v90, -12
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v3 = irsub_imm v91, 45
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br_icmp eq v90, v91, ebb0(v91, v90)
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}
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; sameln: function %icmp(i32, i32) native {
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; nextln: ebb0($v90: i32, $v91: i32):
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; nextln: $v0 = icmp eq $v90, $v91
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; nextln: $v1 = icmp ult $v90, $v91
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; nextln: $v2 = icmp_imm sge $v90, -12
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; nextln: $v3 = irsub_imm $v91, 45
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; nextln: br_icmp eq $v90, $v91, ebb0($v91, $v90)
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; nextln: }
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; Floating condition codes.
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function %fcmp(f32, f32) {
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ebb0(v90: f32, v91: f32):
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v0 = fcmp eq v90, v91
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v1 = fcmp uno v90, v91
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v2 = fcmp lt v90, v91
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}
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; sameln: function %fcmp(f32, f32) native {
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; nextln: ebb0($v90: f32, $v91: f32):
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; nextln: $v0 = fcmp eq $v90, $v91
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; nextln: $v1 = fcmp uno $v90, $v91
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; nextln: $v2 = fcmp lt $v90, $v91
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; nextln: }
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; The bitcast instruction has two type variables: The controlling type variable
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; controls the outout type, and the input type is a free variable.
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function %bitcast(i32, f32) {
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ebb0(v90: i32, v91: f32):
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v0 = bitcast.i8x4 v90
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v1 = bitcast.i32 v91
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}
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; sameln: function %bitcast(i32, f32) native {
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; nextln: ebb0($v90: i32, $v91: f32):
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; nextln: $v0 = bitcast.i8x4 $v90
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; nextln: $v1 = bitcast.i32 $v91
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; nextln: }
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; Stack slot references
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function %stack() {
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ss10 = spill_slot 8
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ss2 = local 4
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ss3 = incoming_arg 4, offset 8
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ss4 = outgoing_arg 4
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ss5 = emergency_slot 4
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ebb0:
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v1 = stack_load.i32 ss10
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v2 = stack_load.i32 ss10+4
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stack_store v1, ss10+2
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stack_store v2, ss2
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}
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; sameln: function %stack() native {
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; nextln: $ss10 = spill_slot 8
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; nextln: $ss2 = local 4
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; nextln: $ss3 = incoming_arg 4, offset 8
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; nextln: $ss4 = outgoing_arg 4
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; nextln: $ss5 = emergency_slot 4
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; check: ebb0:
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; nextln: $v1 = stack_load.i32 $ss10
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; nextln: $v2 = stack_load.i32 $ss10+4
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; nextln: stack_store $v1, $ss10+2
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; nextln: stack_store $v2, $ss2
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; Memory access instructions.
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function %memory(i32) {
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ebb0(v1: i32):
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v2 = load.i64 v1
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v3 = load.i64 aligned v1
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v4 = load.i64 notrap v1
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v5 = load.i64 notrap aligned v1
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v6 = load.i64 aligned notrap v1
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v7 = load.i64 v1-12
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v8 = load.i64 notrap v1+0x1_0000
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store v2, v1
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store aligned v3, v1+12
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store notrap aligned v3, v1-12
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}
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; sameln: function %memory(i32) native {
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; nextln: ebb0($v1: i32):
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; nextln: $v2 = load.i64 $v1
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; nextln: $v3 = load.i64 aligned $v1
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; nextln: $v4 = load.i64 notrap $v1
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; nextln: $v5 = load.i64 notrap aligned $v1
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; nextln: $v6 = load.i64 notrap aligned $v1
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; nextln: $v7 = load.i64 $v1-12
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; nextln: $v8 = load.i64 notrap $v1+0x0001_0000
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; nextln: store $v2, $v1
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; nextln: store aligned $v3, $v1+12
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; nextln: store notrap aligned $v3, $v1-12
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; Register diversions.
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; This test file has no ISA, so we can unly use register unit numbers.
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function %diversion(i32) {
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ss0 = spill_slot 4
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ebb0(v1: i32):
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regmove v1, %10 -> %20
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regmove v1, %20 -> %10
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regspill v1, %10 -> ss0
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regfill v1, ss0 -> %10
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return
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}
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; sameln: function %diversion(i32) native {
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; nextln: $ss0 = spill_slot 4
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; check: ebb0($v1: i32):
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; nextln: regmove $v1, %10 -> %20
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; nextln: regmove $v1, %20 -> %10
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; nextln: regspill $v1, %10 -> $ss0
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; nextln: regfill $v1, $ss0 -> %10
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; nextln: return
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; nextln: }
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