276 lines
7.6 KiB
LLVM
276 lines
7.6 KiB
LLVM
; RUN: llc < %s -mattr=+atomics -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s
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; Test loads and stores with custom alignment values.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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;===----------------------------------------------------------------------------
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; Loads
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;===----------------------------------------------------------------------------
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; CHECK-LABEL: ldi32_a1:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load $push[[NUM:[0-9]+]]=, 0($0):p2align=0{{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32_a1(i32 *%p) {
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%v = load i32, i32* %p, align 1
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ret i32 %v
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}
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; CHECK-LABEL: ldi32_a2:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load $push[[NUM:[0-9]+]]=, 0($0):p2align=1{{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32_a2(i32 *%p) {
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%v = load i32, i32* %p, align 2
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ret i32 %v
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}
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; 4 is the default alignment for i32 so no attribute is needed.
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; CHECK-LABEL: ldi32_a4:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32_a4(i32 *%p) {
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%v = load i32, i32* %p, align 4
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ret i32 %v
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}
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; The default alignment in LLVM is the same as the defualt alignment in wasm.
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; CHECK-LABEL: ldi32:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32(i32 *%p) {
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%v = load i32, i32* %p
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ret i32 %v
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}
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; 8 is greater than the default alignment so it is ignored.
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; CHECK-LABEL: ldi32_a8:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32_a8(i32 *%p) {
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%v = load i32, i32* %p, align 8
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ret i32 %v
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}
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;===----------------------------------------------------------------------------
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; Extending loads
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;===----------------------------------------------------------------------------
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; CHECK-LABEL: ldi8_a1:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load8_u $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i8 @ldi8_a1(i8 *%p) {
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%v = load i8, i8* %p, align 1
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ret i8 %v
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}
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; CHECK-LABEL: ldi8_a2:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load8_u $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i8 @ldi8_a2(i8 *%p) {
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%v = load i8, i8* %p, align 2
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ret i8 %v
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}
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; CHECK-LABEL: ldi16_a1:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load16_u $push[[NUM:[0-9]+]]=, 0($0):p2align=0{{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i16 @ldi16_a1(i16 *%p) {
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%v = load i16, i16* %p, align 1
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ret i16 %v
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}
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; CHECK-LABEL: ldi16_a2:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load16_u $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i16 @ldi16_a2(i16 *%p) {
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%v = load i16, i16* %p, align 2
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ret i16 %v
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}
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; CHECK-LABEL: ldi16_a4:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.load16_u $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i16 @ldi16_a4(i16 *%p) {
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%v = load i16, i16* %p, align 4
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ret i16 %v
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}
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;===----------------------------------------------------------------------------
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; Stores
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;===----------------------------------------------------------------------------
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; CHECK-LABEL: sti32_a1:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store 0($0):p2align=0, $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32_a1(i32 *%p, i32 %v) {
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store i32 %v, i32* %p, align 1
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ret void
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}
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; CHECK-LABEL: sti32_a2:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store 0($0):p2align=1, $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32_a2(i32 *%p, i32 %v) {
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store i32 %v, i32* %p, align 2
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ret void
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}
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; 4 is the default alignment for i32 so no attribute is needed.
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; CHECK-LABEL: sti32_a4:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32_a4(i32 *%p, i32 %v) {
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store i32 %v, i32* %p, align 4
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ret void
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}
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; The default alignment in LLVM is the same as the defualt alignment in wasm.
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; CHECK-LABEL: sti32:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32(i32 *%p, i32 %v) {
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store i32 %v, i32* %p
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ret void
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}
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; CHECK-LABEL: sti32_a8:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32_a8(i32 *%p, i32 %v) {
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store i32 %v, i32* %p, align 8
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ret void
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}
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;===----------------------------------------------------------------------------
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; Truncating stores
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;===----------------------------------------------------------------------------
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; CHECK-LABEL: sti8_a1:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store8 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti8_a1(i8 *%p, i8 %v) {
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store i8 %v, i8* %p, align 1
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ret void
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}
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; CHECK-LABEL: sti8_a2:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store8 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti8_a2(i8 *%p, i8 %v) {
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store i8 %v, i8* %p, align 2
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ret void
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}
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; CHECK-LABEL: sti16_a1:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store16 0($0):p2align=0, $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti16_a1(i16 *%p, i16 %v) {
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store i16 %v, i16* %p, align 1
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ret void
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}
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; CHECK-LABEL: sti16_a2:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store16 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti16_a2(i16 *%p, i16 %v) {
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store i16 %v, i16* %p, align 2
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ret void
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}
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; CHECK-LABEL: sti16_a4:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.store16 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti16_a4(i16 *%p, i16 %v) {
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store i16 %v, i16* %p, align 4
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ret void
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}
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;===----------------------------------------------------------------------------
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; Atomic loads
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;===----------------------------------------------------------------------------
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; Wasm atomics have the alignment field, but it must always have the type's
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; natural alignment.
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; CHECK-LABEL: ldi32_atomic_a4:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.atomic.load $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32_atomic_a4(i32 *%p) {
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%v = load atomic i32, i32* %p seq_cst, align 4
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ret i32 %v
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}
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; 8 is greater than the default alignment so it is ignored.
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; CHECK-LABEL: ldi32_atomic_a8:
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; CHECK-NEXT: .param i32{{$}}
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: i32.atomic.load $push[[NUM:[0-9]+]]=, 0($0){{$}}
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; CHECK-NEXT: return $pop[[NUM]]{{$}}
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define i32 @ldi32_atomic_a8(i32 *%p) {
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%v = load atomic i32, i32* %p seq_cst, align 8
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ret i32 %v
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}
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;===----------------------------------------------------------------------------
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; Atomic stores
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;===----------------------------------------------------------------------------
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; CHECK-LABEL: sti32_atomic_a4:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.atomic.store 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32_atomic_a4(i32 *%p, i32 %v) {
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store atomic i32 %v, i32* %p seq_cst, align 4
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ret void
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}
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; 8 is greater than the default alignment so it is ignored.
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; CHECK-LABEL: sti32_atomic_a8:
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; CHECK-NEXT: .param i32, i32{{$}}
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; CHECK-NEXT: i32.atomic.store 0($0), $1{{$}}
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; CHECK-NEXT: return{{$}}
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define void @sti32_atomic_a8(i32 *%p, i32 %v) {
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store atomic i32 %v, i32* %p seq_cst, align 8
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ret void
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}
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