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; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s
%0 = type { i64, i64 }
define i128 @f0(i8* %p) nounwind readonly {
; CHECK-LABEL: f0:
; CHECK: ldxp {{x[0-9]+}}, {{x[0-9]+}}, [x0]
entry:
%ldrexd = tail call %0 @llvm.arm64.ldxp(i8* %p)
%0 = extractvalue %0 %ldrexd, 1
%1 = extractvalue %0 %ldrexd, 0
%2 = zext i64 %0 to i128
%3 = zext i64 %1 to i128
%shl = shl nuw i128 %2, 64
%4 = or i128 %shl, %3
ret i128 %4
}
define i32 @f1(i8* %ptr, i128 %val) nounwind {
; CHECK-LABEL: f1:
; CHECK: stxp {{w[0-9]+}}, {{x[0-9]+}}, {{x[0-9]+}}, [x0]
entry:
%tmp4 = trunc i128 %val to i64
%tmp6 = lshr i128 %val, 64
%tmp7 = trunc i128 %tmp6 to i64
%strexd = tail call i32 @llvm.arm64.stxp(i64 %tmp4, i64 %tmp7, i8* %ptr)
ret i32 %strexd
}
declare %0 @llvm.arm64.ldxp(i8*) nounwind
declare i32 @llvm.arm64.stxp(i64, i64, i8*) nounwind
@var = global i64 0, align 8
define void @test_load_i8(i8* %addr) {
; CHECK-LABEL: test_load_i8:
; CHECK: ldxrb w[[LOADVAL:[0-9]+]], [x0]
; CHECK-NOT: uxtb
; CHECK-NOT: and
; CHECK: str x[[LOADVAL]], [{{x[0-9]+}}, :lo12:var]
%val = call i64 @llvm.arm64.ldxr.p0i8(i8* %addr)
%shortval = trunc i64 %val to i8
%extval = zext i8 %shortval to i64
store i64 %extval, i64* @var, align 8
ret void
}
define void @test_load_i16(i16* %addr) {
; CHECK-LABEL: test_load_i16:
; CHECK: ldxrh w[[LOADVAL:[0-9]+]], [x0]
; CHECK-NOT: uxth
; CHECK-NOT: and
; CHECK: str x[[LOADVAL]], [{{x[0-9]+}}, :lo12:var]
%val = call i64 @llvm.arm64.ldxr.p0i16(i16* %addr)
%shortval = trunc i64 %val to i16
%extval = zext i16 %shortval to i64
store i64 %extval, i64* @var, align 8
ret void
}
define void @test_load_i32(i32* %addr) {
; CHECK-LABEL: test_load_i32:
; CHECK: ldxr w[[LOADVAL:[0-9]+]], [x0]
; CHECK-NOT: uxtw
; CHECK-NOT: and
; CHECK: str x[[LOADVAL]], [{{x[0-9]+}}, :lo12:var]
%val = call i64 @llvm.arm64.ldxr.p0i32(i32* %addr)
%shortval = trunc i64 %val to i32
%extval = zext i32 %shortval to i64
store i64 %extval, i64* @var, align 8
ret void
}
define void @test_load_i64(i64* %addr) {
; CHECK-LABEL: test_load_i64:
; CHECK: ldxr x[[LOADVAL:[0-9]+]], [x0]
; CHECK: str x[[LOADVAL]], [{{x[0-9]+}}, :lo12:var]
%val = call i64 @llvm.arm64.ldxr.p0i64(i64* %addr)
store i64 %val, i64* @var, align 8
ret void
}
declare i64 @llvm.arm64.ldxr.p0i8(i8*) nounwind
declare i64 @llvm.arm64.ldxr.p0i16(i16*) nounwind
declare i64 @llvm.arm64.ldxr.p0i32(i32*) nounwind
declare i64 @llvm.arm64.ldxr.p0i64(i64*) nounwind
define i32 @test_store_i8(i32, i8 %val, i8* %addr) {
; CHECK-LABEL: test_store_i8:
; CHECK-NOT: uxtb
; CHECK-NOT: and
; CHECK: stxrb w0, w1, [x2]
%extval = zext i8 %val to i64
%res = call i32 @llvm.arm64.stxr.p0i8(i64 %extval, i8* %addr)
ret i32 %res
}
define i32 @test_store_i16(i32, i16 %val, i16* %addr) {
; CHECK-LABEL: test_store_i16:
; CHECK-NOT: uxth
; CHECK-NOT: and
; CHECK: stxrh w0, w1, [x2]
%extval = zext i16 %val to i64
%res = call i32 @llvm.arm64.stxr.p0i16(i64 %extval, i16* %addr)
ret i32 %res
}
define i32 @test_store_i32(i32, i32 %val, i32* %addr) {
; CHECK-LABEL: test_store_i32:
; CHECK-NOT: uxtw
; CHECK-NOT: and
; CHECK: stxr w0, w1, [x2]
%extval = zext i32 %val to i64
%res = call i32 @llvm.arm64.stxr.p0i32(i64 %extval, i32* %addr)
ret i32 %res
}
define i32 @test_store_i64(i32, i64 %val, i64* %addr) {
; CHECK-LABEL: test_store_i64:
; CHECK: stxr w0, x1, [x2]
%res = call i32 @llvm.arm64.stxr.p0i64(i64 %val, i64* %addr)
ret i32 %res
}
declare i32 @llvm.arm64.stxr.p0i8(i64, i8*) nounwind
declare i32 @llvm.arm64.stxr.p0i16(i64, i16*) nounwind
declare i32 @llvm.arm64.stxr.p0i32(i64, i32*) nounwind
declare i32 @llvm.arm64.stxr.p0i64(i64, i64*) nounwind
; CHECK: test_clear:
; CHECK: clrex
define void @test_clear() {
call void @llvm.arm64.clrex()
ret void
}
declare void @llvm.arm64.clrex() nounwind
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