mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
b3ee777d21
Providing that the load is known to be 4 byte aligned, we can optimise a ldr(adr address) to just ldr address. Differential Revision: https://reviews.llvm.org/D51030 llvm-svn: 341058
56 lines
2.5 KiB
LLVM
56 lines
2.5 KiB
LLVM
; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -mcpu=cyclone | FileCheck %s
|
|
; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-none-linux-gnu -code-model=large -mcpu=cyclone | FileCheck --check-prefix=CHECK-LARGE %s
|
|
; RUN: llc -verify-machineinstrs -o - %s -mtriple=aarch64-none-none-eabi -code-model=tiny -mcpu=cyclone | FileCheck --check-prefix=CHECK-TINY %s
|
|
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP %s
|
|
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -code-model=large -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP-LARGE %s
|
|
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-none-eabi -code-model=tiny -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP-TINY %s
|
|
|
|
@varfloat = global float 0.0
|
|
@vardouble = global double 0.0
|
|
|
|
define void @floating_lits() {
|
|
; CHECK-LABEL: floating_lits:
|
|
|
|
%floatval = load float, float* @varfloat
|
|
%newfloat = fadd float %floatval, 128.0
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI[0-9]+_[0-9]+]]
|
|
; CHECK: ldr [[LIT128:s[0-9]+]], [x[[LITBASE]], {{#?}}:lo12:[[CURLIT]]]
|
|
; CHECK-NOFP-NOT: ldr {{s[0-9]+}},
|
|
|
|
; CHECK-TINY: ldr [[LIT128:s[0-9]+]], [[CURLIT:.LCPI[0-9]+_[0-9]+]]
|
|
; CHECK-NOFP-TINY-NOT: ldr {{s[0-9]+}},
|
|
|
|
; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g0_nc:[[CURLIT:.LCPI[0-9]+_[0-9]+]]
|
|
; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
|
|
; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
|
|
; CHECK-LARGE: movk x[[LITADDR]], #:abs_g3:[[CURLIT]]
|
|
; CHECK-LARGE: ldr {{s[0-9]+}}, [x[[LITADDR]]]
|
|
; CHECK-LARGE: fadd
|
|
; CHECK-NOFP-LARGE-NOT: ldr {{s[0-9]+}},
|
|
; CHECK-NOFP-LARGE-NOT: fadd
|
|
|
|
store float %newfloat, float* @varfloat
|
|
|
|
%doubleval = load double, double* @vardouble
|
|
%newdouble = fadd double %doubleval, 129.0
|
|
; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI[0-9]+_[0-9]+]]
|
|
; CHECK: ldr [[LIT129:d[0-9]+]], [x[[LITBASE]], {{#?}}:lo12:[[CURLIT]]]
|
|
; CHECK-NOFP-NOT: ldr {{d[0-9]+}},
|
|
; CHECK-NOFP-NOT: fadd
|
|
|
|
; CHECK-TINY: ldr [[LIT129:d[0-9]+]], [[CURLIT:.LCPI[0-9]+_[0-9]+]]
|
|
; CHECK-NOFP-TINY-NOT: ldr {{d[0-9]+}},
|
|
; CHECK-NOFP-TINY-NOT: fadd
|
|
|
|
; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g0_nc:[[CURLIT:.LCPI[0-9]+_[0-9]+]]
|
|
; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
|
|
; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
|
|
; CHECK-LARGE: movk x[[LITADDR]], #:abs_g3:[[CURLIT]]
|
|
; CHECK-LARGE: ldr {{d[0-9]+}}, [x[[LITADDR]]]
|
|
; CHECK-NOFP-LARGE-NOT: ldr {{d[0-9]+}},
|
|
|
|
store double %newdouble, double* @vardouble
|
|
|
|
ret void
|
|
}
|