derek.holloway
7502bf64a4
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34 lines
1.5 KiB
LLVM
34 lines
1.5 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -relocation-model=pic -fast-isel -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+atomics,+sign-ext | FileCheck %s
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; 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
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; Test that atomic operations in PIC mode. Specifically we verify
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; that atomic operations on global address load addres via @GOT or
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; @MBREL relocations.
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target triple = "wasm32-unknown-emscripten"
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@external_global = external global i32
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@hidden_global = external hidden global i32
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define i32 @rmw_add_external_global() {
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; CHECK-LABEL: rmw_add_external_global:
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; CHECK: global.get $push[[L0:[0-9]+]]=, external_global@GOT{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 42{{$}}
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; CHECK-NEXT: i32.atomic.rmw.add $push[[L2:[0-9]+]]=, 0($pop[[L0]]), $pop[[L1]]{{$}}
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; CHECK-NEXT: end_function
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%1 = atomicrmw add ptr @external_global, i32 42 seq_cst
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ret i32 %1
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}
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define i32 @rmw_add_hidden_global() {
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; CHECK-LABEL: rmw_add_hidden_global:
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; CHECK: global.get $push[[L0:[0-9]+]]=, __memory_base{{$}}
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; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, hidden_global@MBREL{{$}}
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; CHECK-NEXT: i32.add $push[[L2:[0-9]+]]=, $pop[[L0]], $pop[[L1]]{{$}}
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; CHECK-NEXT: i32.const $push[[L3:[0-9]+]]=, 42{{$}}
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; CHECK-NEXT: i32.atomic.rmw.add $push[[L4:[0-9]+]]=, 0($pop[[L2]]), $pop[[L3]]{{$}}
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; CHECK-NEXT: end_function
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%1 = atomicrmw add ptr @hidden_global, i32 42 seq_cst
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ret i32 %1
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}
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