129 lines
2.6 KiB
LLVM
129 lines
2.6 KiB
LLVM
|
; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
|
||
|
|
|
||
|
|
define i64 @test1(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test1
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: adds r0, r2
|
||
|
|
; CHECK: adc r1, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = atomicrmw add i64* %ptr, i64 %val seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test2(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test2
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: subs r0, r2
|
||
|
|
; CHECK: sbc r1, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = atomicrmw sub i64* %ptr, i64 %val seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test3(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test3
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: and r0, r2
|
||
|
|
; CHECK: and r1, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = atomicrmw and i64* %ptr, i64 %val seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test4(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test4
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: orr r0, r2
|
||
|
|
; CHECK: orr r1, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = atomicrmw or i64* %ptr, i64 %val seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test5(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test5
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: eor r0, r2
|
||
|
|
; CHECK: eor r1, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = atomicrmw xor i64* %ptr, i64 %val seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test6(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test6
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = atomicrmw xchg i64* %ptr, i64 %val seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test7(i64* %ptr, i64 %val1, i64 %val2) {
|
||
|
|
; CHECK: test7
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: cmp r2
|
||
|
|
; CHECK: cmpeq r3
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = cmpxchg i64* %ptr, i64 %val1, i64 %val2 seq_cst
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
; Compiles down to cmpxchg
|
||
|
|
; FIXME: Should compile to a single ldrexd
|
||
|
|
define i64 @test8(i64* %ptr) {
|
||
|
|
; CHECK: test8
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: cmp r2
|
||
|
|
; CHECK: cmpeq r3
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
%r = load atomic i64* %ptr seq_cst, align 8
|
||
|
|
ret i64 %r
|
||
|
|
}
|
||
|
|
|
||
|
|
; Compiles down to atomicrmw xchg; there really isn't any more efficient
|
||
|
|
; way to write it.
|
||
|
|
define void @test9(i64* %ptr, i64 %val) {
|
||
|
|
; CHECK: test9
|
||
|
|
; CHECK: dmb ish
|
||
|
|
; CHECK: ldrexd r2, r3
|
||
|
|
; CHECK: strexd {{[a-z0-9]+}}, r0, r1
|
||
|
|
; CHECK: cmp
|
||
|
|
; CHECK: bne
|
||
|
|
; CHECK: dmb ish
|
||
|
|
store atomic i64 %val, i64* %ptr seq_cst, align 8
|
||
|
|
ret void
|
||
|
|
}
|