| ; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s -check-prefixes=NON-PIC,CHECK |
| |
| target triple = "wasm32-unknown-emscripten" |
| |
| @hidden_global = external hidden global i32 |
| @hidden_global_array = external hidden global [10 x i32] |
| @external_global = external dso_local global i32 |
| @external_global_array = external dso_local global [10 x i32] |
| |
| declare i32 @foo(); |
| |
| ; For hidden symbols PIC code needs to offset all loads and stores |
| ; by the value of the __memory_base global |
| |
| define i32 @load_hidden_global() { |
| ; CHECK-LABEL: load_hidden_global: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT: i32.load $push1=, hidden_global($pop0){{$}} |
| ; CHECK-NEXT: end_function |
| |
| %1 = load i32, i32* @hidden_global |
| ret i32 %1 |
| } |
| |
| define i32 @load_hidden_global_offset() { |
| ; CHECK-LABEL: load_hidden_global_offset: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT:i32.load $push1=, hidden_global_array+20($pop0){{$}} |
| ; CHECK-NEXT: end_function |
| |
| %1 = getelementptr [10 x i32], [10 x i32]* @hidden_global_array, i32 0, i32 5 |
| %2 = load i32, i32* %1 |
| ret i32 %2 |
| } |
| |
| ; Store to a hidden global |
| |
| define void @store_hidden_global(i32 %n) { |
| ; CHECK-LABEL: store_hidden_global: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT: i32.store hidden_global($pop0), $0{{$}} |
| ; CHECK-NEXT: end_function |
| |
| store i32 %n, i32* @hidden_global |
| ret void |
| } |
| |
| define void @store_hidden_global_offset(i32 %n) { |
| ; CHECK-LABEL: store_hidden_global_offset: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT: i32.store hidden_global_array+20($pop0), $0{{$}} |
| ; CHECK-NEXT: end_function |
| |
| %1 = getelementptr [10 x i32], [10 x i32]* @hidden_global_array, i32 0, i32 5 |
| store i32 %n, i32* %1 |
| ret void |
| } |
| |
| ; For non-hidden globals PIC code has to load the address from a wasm global |
| ; using the @GOT relocation type. |
| |
| |
| define i32 @load_external_global() { |
| ; CHECK-LABEL: load_external_global: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT: i32.load $push1=, external_global($pop0){{$}} |
| ; CHECK-NEXT: end_function |
| |
| %1 = load i32, i32* @external_global |
| ret i32 %1 |
| } |
| |
| define i32 @load_external_global_offset() { |
| ; CHECK-LABEL: load_external_global_offset: |
| ; NON-PIC: i32.const $push[[L0:[0-9]+]]=, 0{{$}} |
| ; NON-PIC-NEXT: i32.load $push{{[0-9]+}}=, external_global_array+20($pop[[L0]]){{$}} |
| ; CHECK-NEXT: end_function |
| |
| %1 = getelementptr [10 x i32], [10 x i32]* @external_global_array, i32 0, i32 5 |
| %2 = load i32, i32* %1 |
| ret i32 %2 |
| } |
| |
| ; Store to a non-hidden global via the wasm global. |
| |
| define void @store_external_global(i32 %n) { |
| ; CHECK-LABEL: store_external_global: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT: i32.store external_global($pop0), $0{{$}} |
| ; CHECK-NEXT: end_function |
| |
| store i32 %n, i32* @external_global |
| ret void |
| } |
| |
| define void @store_external_global_offset(i32 %n) { |
| ; CHECK-LABEL: store_external_global_offset: |
| ; NON-PIC: i32.const $push0=, 0{{$}} |
| ; NON-PIC-NEXT: i32.store external_global_array+20($pop0), $0{{$}} |
| ; CHECK-NEXT: end_function |
| |
| %1 = getelementptr [10 x i32], [10 x i32]* @external_global_array, i32 0, i32 5 |
| store i32 %n, i32* %1 |
| ret void |
| } |