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1; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s -check-prefixes=NON-PIC,CHECK2 3target triple = "wasm32-unknown-emscripten"4 5@hidden_global = external hidden global i326@hidden_global_array = external hidden global [10 x i32]7@external_global = external dso_local global i328@external_global_array = external dso_local global [10 x i32]9 10declare i32 @foo();11 12; For hidden symbols PIC code needs to offset all loads and stores13; by the value of the __memory_base global14 15define i32 @load_hidden_global() {16; CHECK-LABEL: load_hidden_global:17; NON-PIC: i32.const $push0=, 0{{$}}18; NON-PIC-NEXT: i32.load $push1=, hidden_global($pop0){{$}}19; CHECK-NEXT: end_function20 21 %1 = load i32, ptr @hidden_global22 ret i32 %123}24 25define i32 @load_hidden_global_offset() {26; CHECK-LABEL: load_hidden_global_offset:27; NON-PIC: i32.const $push0=, 0{{$}}28; NON-PIC-NEXT:i32.load $push1=, hidden_global_array+20($pop0){{$}}29; CHECK-NEXT: end_function30 31 %1 = getelementptr [10 x i32], ptr @hidden_global_array, i32 0, i32 532 %2 = load i32, ptr %133 ret i32 %234}35 36; Store to a hidden global37 38define void @store_hidden_global(i32 %n) {39; CHECK-LABEL: store_hidden_global:40; NON-PIC: i32.const $push0=, 0{{$}}41; NON-PIC-NEXT: i32.store hidden_global($pop0), $0{{$}}42; CHECK-NEXT: end_function43 44 store i32 %n, ptr @hidden_global45 ret void46}47 48define void @store_hidden_global_offset(i32 %n) {49; CHECK-LABEL: store_hidden_global_offset:50; NON-PIC: i32.const $push0=, 0{{$}}51; NON-PIC-NEXT: i32.store hidden_global_array+20($pop0), $0{{$}}52; CHECK-NEXT: end_function53 54 %1 = getelementptr [10 x i32], ptr @hidden_global_array, i32 0, i32 555 store i32 %n, ptr %156 ret void57}58 59; For non-hidden globals PIC code has to load the address from a wasm global60; using the @GOT relocation type.61 62 63define i32 @load_external_global() {64; CHECK-LABEL: load_external_global:65; NON-PIC: i32.const $push0=, 0{{$}}66; NON-PIC-NEXT: i32.load $push1=, external_global($pop0){{$}}67; CHECK-NEXT: end_function68 69 %1 = load i32, ptr @external_global70 ret i32 %171}72 73define i32 @load_external_global_offset() {74; CHECK-LABEL: load_external_global_offset:75; NON-PIC: i32.const $push[[L0:[0-9]+]]=, 0{{$}}76; NON-PIC-NEXT: i32.load $push{{[0-9]+}}=, external_global_array+20($pop[[L0]]){{$}}77; CHECK-NEXT: end_function78 79 %1 = getelementptr [10 x i32], ptr @external_global_array, i32 0, i32 580 %2 = load i32, ptr %181 ret i32 %282}83 84; Store to a non-hidden global via the wasm global.85 86define void @store_external_global(i32 %n) {87; CHECK-LABEL: store_external_global:88; NON-PIC: i32.const $push0=, 0{{$}}89; NON-PIC-NEXT: i32.store external_global($pop0), $0{{$}}90; CHECK-NEXT: end_function91 92 store i32 %n, ptr @external_global93 ret void94}95 96define void @store_external_global_offset(i32 %n) {97; CHECK-LABEL: store_external_global_offset:98; NON-PIC: i32.const $push0=, 0{{$}}99; NON-PIC-NEXT: i32.store external_global_array+20($pop0), $0{{$}}100; CHECK-NEXT: end_function101 102 %1 = getelementptr [10 x i32], ptr @external_global_array, i32 0, i32 5103 store i32 %n, ptr %1104 ret void105}106