mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-08 18:30:04 +00:00
1e8839302b
This implements the review suggestion to simplify the AArch64 backend. If we later discover that we *really* need the extra complexity of the ConstantIslands pass for performance reasons it can be resurrected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175258 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.7 KiB
LLVM
56 lines
1.7 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
|
|
|
|
@var32 = global i32 0
|
|
@var64 = global i64 0
|
|
|
|
define void @foo() {
|
|
; CHECK: foo:
|
|
%val32 = load i32* @var32
|
|
%val64 = load i64* @var64
|
|
|
|
%val32_lit32 = and i32 %val32, 123456785
|
|
store volatile i32 %val32_lit32, i32* @var32
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
|
|
; CHECK: ldr {{w[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
|
|
|
|
%val64_lit32 = and i64 %val64, 305402420
|
|
store volatile i64 %val64_lit32, i64* @var64
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
|
|
; CHECK: ldr {{w[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
|
|
|
|
%val64_lit32signed = and i64 %val64, -12345678
|
|
store volatile i64 %val64_lit32signed, i64* @var64
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
|
|
; CHECK: ldrsw {{x[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
|
|
|
|
%val64_lit64 = and i64 %val64, 1234567898765432
|
|
store volatile i64 %val64_lit64, i64* @var64
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
|
|
; CHECK: ldr {{x[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
|
|
|
|
ret void
|
|
}
|
|
|
|
@varfloat = global float 0.0
|
|
@vardouble = global double 0.0
|
|
|
|
define void @floating_lits() {
|
|
; CHECK: floating_lits:
|
|
|
|
%floatval = load float* @varfloat
|
|
%newfloat = fadd float %floatval, 128.0
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI1_[0-9]+]]
|
|
; CHECK: ldr {{s[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
|
|
; CHECK: fadd
|
|
store float %newfloat, float* @varfloat
|
|
|
|
%doubleval = load double* @vardouble
|
|
%newdouble = fadd double %doubleval, 129.0
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI1_[0-9]+]]
|
|
; CHECK: ldr {{d[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
|
|
; CHECK: fadd
|
|
store double %newdouble, double* @vardouble
|
|
|
|
ret void
|
|
}
|