299 lines · plain
1; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers -mattr=+sign-ext,+simd128 | FileCheck --check-prefixes=CHECK,SLOW,NO-TAIL %s2; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers -fast-isel -fast-isel-abort=1 -mattr=+sign-ext,+simd128 | FileCheck --check-prefixes=CHECK,FAST,NO-TAIL %s3; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers -mattr=+sign-ext,+simd128,+tail-call | FileCheck --check-prefixes=CHECK,SLOW-TAIL %s4; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers -fast-isel -fast-isel-abort=1 -mattr=+sign-ext,+simd128,+tail-call | FileCheck --check-prefixes=CHECK,FAST-TAIL %s5 6; Test that basic call operations assemble as expected.7 8target triple = "wasm32-unknown-unknown"9 10declare i32 @i32_nullary()11declare i32 @i32_unary(i32)12declare i32 @i32_binary(i32, i32)13declare i64 @i64_nullary()14declare float @float_nullary()15declare double @double_nullary()16declare <16 x i8> @v128_nullary()17declare void @void_nullary()18 19; CHECK-LABEL: call_i32_nullary:20; CHECK-NEXT: .functype call_i32_nullary () -> (i32){{$}}21; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, i32_nullary{{$}}22; CHECK-NEXT: return $pop[[NUM]]{{$}}23define i32 @call_i32_nullary() {24 %r = call i32 @i32_nullary()25 ret i32 %r26}27 28; CHECK-LABEL: call_i64_nullary:29; CHECK-NEXT: .functype call_i64_nullary () -> (i64){{$}}30; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, i64_nullary{{$}}31; CHECK-NEXT: return $pop[[NUM]]{{$}}32define i64 @call_i64_nullary() {33 %r = call i64 @i64_nullary()34 ret i64 %r35}36 37; CHECK-LABEL: call_float_nullary:38; CHECK-NEXT: .functype call_float_nullary () -> (f32){{$}}39; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, float_nullary{{$}}40; CHECK-NEXT: return $pop[[NUM]]{{$}}41define float @call_float_nullary() {42 %r = call float @float_nullary()43 ret float %r44}45 46; CHECK-LABEL: call_double_nullary:47; CHECK-NEXT: .functype call_double_nullary () -> (f64){{$}}48; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, double_nullary{{$}}49; CHECK-NEXT: return $pop[[NUM]]{{$}}50define double @call_double_nullary() {51 %r = call double @double_nullary()52 ret double %r53}54 55; CHECK-LABEL: call_v128_nullary:56; CHECK-NEXT: .functype call_v128_nullary () -> (v128){{$}}57; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, v128_nullary{{$}}58; CHECK-NEXT: return $pop[[NUM]]{{$}}59define <16 x i8> @call_v128_nullary() {60 %r = call <16 x i8> @v128_nullary()61 ret <16 x i8> %r62}63 64; CHECK-LABEL: call_void_nullary:65; CHECK-NEXT: .functype call_void_nullary () -> (){{$}}66; CHECK-NEXT: {{^}} call void_nullary{{$}}67; CHECK-NEXT: return{{$}}68define void @call_void_nullary() {69 call void @void_nullary()70 ret void71}72 73; CHECK-LABEL: call_i32_unary:74; CHECK-NEXT: .functype call_i32_unary (i32) -> (i32){{$}}75; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}76; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, i32_unary, $pop[[L0]]{{$}}77; CHECK-NEXT: return $pop[[NUM]]{{$}}78define i32 @call_i32_unary(i32 %a) {79 %r = call i32 @i32_unary(i32 %a)80 ret i32 %r81}82 83; CHECK-LABEL: call_i32_binary:84; CHECK-NEXT: .functype call_i32_binary (i32, i32) -> (i32){{$}}85; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}86; CHECK-NEXT: local.get $push[[L1:[0-9]+]]=, 1{{$}}87; CHECK-NEXT: {{^}} call $push[[NUM:[0-9]+]]=, i32_binary, $pop[[L0]], $pop[[L1]]{{$}}88; CHECK-NEXT: return $pop[[NUM]]{{$}}89define i32 @call_i32_binary(i32 %a, i32 %b) {90 %r = call i32 @i32_binary(i32 %a, i32 %b)91 ret i32 %r92}93 94; CHECK-LABEL: call_indirect_void:95; CHECK-NEXT: .functype call_indirect_void (i32) -> (){{$}}96; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}97; CHECK-NEXT: {{^}} call_indirect $pop[[L0]]{{$}}98; CHECK-NEXT: return{{$}}99define void @call_indirect_void(ptr %callee) {100 call void %callee()101 ret void102}103 104; CHECK-LABEL: call_indirect_i32:105; CHECK-NEXT: .functype call_indirect_i32 (i32) -> (i32){{$}}106; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}107; CHECK-NEXT: {{^}} call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]]{{$}}108; CHECK-NEXT: return $pop[[NUM]]{{$}}109define i32 @call_indirect_i32(ptr %callee) {110 %t = call i32 %callee()111 ret i32 %t112}113 114; CHECK-LABEL: call_indirect_i64:115; CHECK-NEXT: .functype call_indirect_i64 (i32) -> (i64){{$}}116; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}117; CHECK-NEXT: {{^}} call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]]{{$}}118; CHECK-NEXT: return $pop[[NUM]]{{$}}119define i64 @call_indirect_i64(ptr %callee) {120 %t = call i64 %callee()121 ret i64 %t122}123 124; CHECK-LABEL: call_indirect_float:125; CHECK-NEXT: .functype call_indirect_float (i32) -> (f32){{$}}126; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}127; CHECK-NEXT: {{^}} call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]]{{$}}128; CHECK-NEXT: return $pop[[NUM]]{{$}}129define float @call_indirect_float(ptr %callee) {130 %t = call float %callee()131 ret float %t132}133 134; CHECK-LABEL: call_indirect_double:135; CHECK-NEXT: .functype call_indirect_double (i32) -> (f64){{$}}136; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}137; CHECK-NEXT: {{^}} call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]]{{$}}138; CHECK-NEXT: return $pop[[NUM]]{{$}}139define double @call_indirect_double(ptr %callee) {140 %t = call double %callee()141 ret double %t142}143 144; CHECK-LABEL: call_indirect_v128:145; CHECK-NEXT: .functype call_indirect_v128 (i32) -> (v128){{$}}146; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 0{{$}}147; CHECK-NEXT: {{^}} call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]]{{$}}148; CHECK-NEXT: return $pop[[NUM]]{{$}}149define <16 x i8> @call_indirect_v128(ptr %callee) {150 %t = call <16 x i8> %callee()151 ret <16 x i8> %t152}153 154; CHECK-LABEL: call_indirect_arg:155; CHECK-NEXT: .functype call_indirect_arg (i32, i32) -> (){{$}}156; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 1{{$}}157; CHECK-NEXT: local.get $push[[L1:[0-9]+]]=, 0{{$}}158; CHECK-NEXT: {{^}} call_indirect $pop[[L0]], $pop[[L1]]{{$}}159; CHECK-NEXT: return{{$}}160define void @call_indirect_arg(ptr %callee, i32 %arg) {161 call void %callee(i32 %arg)162 ret void163}164 165; CHECK-LABEL: call_indirect_arg_2:166; CHECK-NEXT: .functype call_indirect_arg_2 (i32, i32, i32) -> (){{$}}167; CHECK-NEXT: local.get $push[[L0:[0-9]+]]=, 1{{$}}168; CHECK-NEXT: local.get $push[[L1:[0-9]+]]=, 2{{$}}169; CHECK-NEXT: local.get $push[[L2:[0-9]+]]=, 0{{$}}170; CHECK-NEXT: {{^}} call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]], $pop[[L1]], $pop[[L2]]{{$}}171; CHECK-NEXT: drop $pop[[NUM]]{{$}}172; CHECK-NEXT: return{{$}}173define void @call_indirect_arg_2(ptr %callee, i32 %arg, i32 %arg2) {174 call i32 %callee(i32 %arg, i32 %arg2)175 ret void176}177 178; CHECK-LABEL: tail_call_void_nullary:179; CHECK-NEXT: .functype tail_call_void_nullary () -> (){{$}}180; NO-TAIL-NEXT: {{^}} call void_nullary{{$}}181; NO-TAIL-NEXT: return{{$}}182; SLOW-TAIL-NEXT: {{^}} return_call void_nullary{{$}}183; FAST-TAIL-NEXT: {{^}} call void_nullary{{$}}184; FAST-TAIL-NEXT: return{{$}}185define void @tail_call_void_nullary() {186 tail call void @void_nullary()187 ret void188}189 190; CHECK-LABEL: fastcc_tail_call_void_nullary:191; CHECK-NEXT: .functype fastcc_tail_call_void_nullary () -> (){{$}}192; NO-TAIL-NEXT: {{^}} call void_nullary{{$}}193; NO-TAIL-NEXT: return{{$}}194; SLOW-TAIL-NEXT: {{^}} return_call void_nullary{{$}}195; FAST-TAIL-NEXT: {{^}} call void_nullary{{$}}196; FAST-TAIL-NEXT: return{{$}}197define void @fastcc_tail_call_void_nullary() {198 tail call fastcc void @void_nullary()199 ret void200}201 202; CHECK-LABEL: coldcc_tail_call_void_nullary:203; CHECK-NEXT: .functype coldcc_tail_call_void_nullary () -> (){{$}}204; NO-TAIL-NEXT: {{^}} call void_nullary{{$}}205; NO-TAIL-NEXT: return{{$}}206; SLOW-TAIL-NEXT: {{^}} return_call void_nullary{{$}}207; FAST-TAIL-NEXT: {{^}} call void_nullary{{$}}208; FAST-TAIL-NEXT: return{{$}}209define void @coldcc_tail_call_void_nullary() {210 tail call coldcc void @void_nullary()211 ret void212}213 214; CHECK-LABEL: call_constexpr:215; CHECK-NEXT: .functype call_constexpr () -> (){{$}}216; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}217; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 3{{$}}218; CHECK-NEXT: call .Lvararg_func_bitcast, $pop[[L0]], $pop[[L1]]{{$}}219; CHECK-NEXT: i32.const $push[[L3:[0-9]+]]=, void_nullary{{$}}220; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, other_void_nullary{{$}}221; CHECK-NEXT: i32.add $push[[L4:[0-9]+]]=, $pop[[L3]], $pop[[L2]]{{$}}222; CHECK-NEXT: call_indirect $pop[[L4]]{{$}}223; CHECK-NEXT: call void_nullary{{$}}224; CHECK-NEXT: return{{$}}225declare void @vararg_func(...)226declare void @other_void_nullary()227define void @call_constexpr() {228bb0:229 call void @vararg_func(i32 2, i32 3)230 br label %bb1231bb1:232 call void getelementptr (i8, ptr @void_nullary, i32 ptrtoint (ptr @other_void_nullary to i32))()233 br label %bb2234bb2:235 call void inttoptr (i32 ptrtoint (ptr @void_nullary to i32) to ptr)()236 ret void237}238 239; Allocas should be lowered to call_indirects.240; CHECK-LABEL: call_indirect_alloca:241; CHECK: local.tee $push{{.*}}=, [[L0:[0-9]+]]242; CHECK-NEXT: global.set __stack_pointer243; CHECK-NEXT: local.get $push{{.*}}=, [[L0]]244; CHECK-NEXT: i32.const $push{{.*}}=, 12245; CHECK-NEXT: i32.add246; CHECK-NEXT: call_indirect $pop{{.*}}247define void @call_indirect_alloca() {248entry:249 %ptr = alloca i32, align 4250 call void %ptr()251 ret void252}253 254; Calling non-functional globals should be lowered to call_indirects.255; CHECK-LABEL: call_indirect_int:256; CHECK: i32.const $push[[L0:[0-9]+]]=, global_i8257; CHECK-NEXT: call_indirect $pop[[L0]]258; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, global_i32259; CHECK-NEXT: call_indirect $pop[[L1]]260@global_i8 = global i8 0261@global_i32 = global i32 0262define void @call_indirect_int() {263 call void @global_i8()264 call void @global_i32()265 ret void266}267 268; Calling aliases of non-functional globals should be lowered to call_indirects.269; CHECK-LABEL: call_indirect_int_alias:270; CHECK: i32.const $push[[L0:[0-9]+]]=, global_i8_alias271; CHECK-NEXT: call_indirect $pop[[L0]]272; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, global_i32_alias273; CHECK-NEXT: call_indirect $pop[[L1]]274@global_i8_alias = alias i8, ptr @global_i8275@global_i32_alias = alias i32, ptr @global_i32276define void @call_indirect_int_alias() {277 call void @global_i8_alias()278 call void @global_i32_alias()279 ret void280}281 282; Ideally calling aliases of functions should be lowered to direct calls. We283; support this in the normal (=slow) isel.284; CHECK-LABEL: call_func_alias:285; SLOW: call func_alias286; FAST: i32.const $push[[L0:[0-9]+]]=, func_alias287; FAST-NEXT: call_indirect $pop[[L0]]288@func_alias = alias void (), ptr @call_void_nullary289define void @call_func_alias() {290 call void @func_alias()291 ret void292}293 294; TODO: test the following:295; - More argument combinations.296; - Tail call.297; - Interesting returns (struct, multiple).298; - Vararg.299