mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-15 09:33:39 +00:00
e56764bad1
This patch replaces the hard coded GPR pair [R0, R1] of Intrinsic:arm_ldrexd and [R2, R3] of Intrinsic:arm_strexd with even/odd GPRPair reg class. Similar to the lowering of atomic_64 operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168207 91177308-0d34-0410-b5e6-96231b3b80d8
129 lines
3.5 KiB
LLVM
129 lines
3.5 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: adds [[REG3:(r[0-9]?[02468])]], [[REG1]]
|
|
; CHECK: adc [[REG4:(r[0-9]?[13579])]], [[REG2]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, [[REG3]], [[REG4]]
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: subs [[REG3:(r[0-9]?[02468])]], [[REG1]]
|
|
; CHECK: sbc [[REG4:(r[0-9]?[13579])]], [[REG2]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, [[REG3]], [[REG4]]
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: and [[REG3:(r[0-9]?[02468])]], [[REG1]]
|
|
; CHECK: and [[REG4:(r[0-9]?[13579])]], [[REG2]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, [[REG3]], [[REG4]]
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: orr [[REG3:(r[0-9]?[02468])]], [[REG1]]
|
|
; CHECK: orr [[REG4:(r[0-9]?[13579])]], [[REG2]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, [[REG3]], [[REG4]]
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: eor [[REG3:(r[0-9]?[02468])]], [[REG1]]
|
|
; CHECK: eor [[REG4:(r[0-9]?[13579])]], [[REG2]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, [[REG3]], [[REG4]]
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, {{r[0-9]?[02468]}}, {{r[0-9]?[13579]}}
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: cmp [[REG1]]
|
|
; CHECK: cmpeq [[REG2]]
|
|
; CHECK: bne
|
|
; CHECK: strexd {{[a-z0-9]+}}, {{r[0-9]?[02468]}}, {{r[0-9]?[13579]}}
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: cmp [[REG1]]
|
|
; CHECK: cmpeq [[REG2]]
|
|
; CHECK: bne
|
|
; CHECK: strexd {{[a-z0-9]+}}, {{r[0-9]?[02468]}}, {{r[0-9]?[13579]}}
|
|
; 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 [[REG1:(r[0-9]?[02468])]], [[REG2:(r[0-9]?[13579])]]
|
|
; CHECK: strexd {{[a-z0-9]+}}, {{r[0-9]?[02468]}}, {{r[0-9]?[13579]}}
|
|
; CHECK: cmp
|
|
; CHECK: bne
|
|
; CHECK: dmb ish
|
|
store atomic i64 %val, i64* %ptr seq_cst, align 8
|
|
ret void
|
|
}
|