| ; RUN: llc < %s -asm-verbose=false -relocation-model=pic -fast-isel -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+atomics,+sign-ext | FileCheck %s |
| ; RUN: llc < %s -asm-verbose=false -relocation-model=pic -fast-isel=false -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+atomics,+sign-ext | FileCheck %s |
| |
| ; Test that atomic operations in PIC mode. Specifically we verify |
| ; that atomic operations on global address load addres via @GOT or |
| ; @MBREL relocations. |
| |
| target triple = "wasm32-unknown-emscripten" |
| |
| @external_global = external global i32 |
| @hidden_global = external hidden global i32 |
| |
| define i32 @rmw_add_external_global() { |
| ; CHECK-LABEL: rmw_add_external_global: |
| ; CHECK: global.get $push[[L0:[0-9]+]]=, external_global@GOT{{$}} |
| ; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 42{{$}} |
| ; CHECK-NEXT: i32.atomic.rmw.add $push[[L2:[0-9]+]]=, 0($pop[[L0]]), $pop[[L1]]{{$}} |
| ; CHECK-NEXT: end_function |
| %1 = atomicrmw add ptr @external_global, i32 42 seq_cst |
| ret i32 %1 |
| } |
| |
| define i32 @rmw_add_hidden_global() { |
| ; CHECK-LABEL: rmw_add_hidden_global: |
| ; CHECK: global.get $push[[L0:[0-9]+]]=, __memory_base{{$}} |
| ; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, hidden_global@MBREL{{$}} |
| ; CHECK-NEXT: i32.add $push[[L2:[0-9]+]]=, $pop[[L0]], $pop[[L1]]{{$}} |
| ; CHECK-NEXT: i32.const $push[[L3:[0-9]+]]=, 42{{$}} |
| ; CHECK-NEXT: i32.atomic.rmw.add $push[[L4:[0-9]+]]=, 0($pop[[L2]]), $pop[[L3]]{{$}} |
| ; CHECK-NEXT: end_function |
| %1 = atomicrmw add ptr @hidden_global, i32 42 seq_cst |
| ret i32 %1 |
| } |