mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-24 04:09:45 +00:00
f5697dce74
ARM seems to prefer that long literals be formed from their little end in order to promote the fusion of the instrs pairs MOV/MOVK and MOVK/MOVK on Cortex A57 and others (v. "Cortex A57 Software Optimisation Guide", section 4.14). Differential revision: https://reviews.llvm.org/D28697 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292422 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
1.7 KiB
LLVM
62 lines
1.7 KiB
LLVM
; RUN: llc -mtriple=aarch64-linux-gnu -code-model=large -o - %s | FileCheck %s
|
|
|
|
@var8 = global i8 0
|
|
@var16 = global i16 0
|
|
@var32 = global i32 0
|
|
@var64 = global i64 0
|
|
|
|
define i8* @global_addr() {
|
|
; CHECK-LABEL: global_addr:
|
|
ret i8* @var8
|
|
; The movz/movk calculation should end up returned directly in x0.
|
|
; CHECK: movz x0, #:abs_g0_nc:var8
|
|
; CHECK: movk x0, #:abs_g1_nc:var8
|
|
; CHECK: movk x0, #:abs_g2_nc:var8
|
|
; CHECK: movk x0, #:abs_g3:var8
|
|
; CHECK-NEXT: ret
|
|
}
|
|
|
|
define i8 @global_i8() {
|
|
; CHECK-LABEL: global_i8:
|
|
%val = load i8, i8* @var8
|
|
ret i8 %val
|
|
; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g0_nc:var8
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g1_nc:var8
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var8
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g3:var8
|
|
; CHECK: ldrb w0, [x[[ADDR_REG]]]
|
|
}
|
|
|
|
define i16 @global_i16() {
|
|
; CHECK-LABEL: global_i16:
|
|
%val = load i16, i16* @var16
|
|
ret i16 %val
|
|
; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g0_nc:var16
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g1_nc:var16
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var16
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g3:var16
|
|
; CHECK: ldrh w0, [x[[ADDR_REG]]]
|
|
}
|
|
|
|
define i32 @global_i32() {
|
|
; CHECK-LABEL: global_i32:
|
|
%val = load i32, i32* @var32
|
|
ret i32 %val
|
|
; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g0_nc:var32
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g1_nc:var32
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var32
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g3:var32
|
|
; CHECK: ldr w0, [x[[ADDR_REG]]]
|
|
}
|
|
|
|
define i64 @global_i64() {
|
|
; CHECK-LABEL: global_i64:
|
|
%val = load i64, i64* @var64
|
|
ret i64 %val
|
|
; CHECK: movz x[[ADDR_REG:[0-9]+]], #:abs_g0_nc:var64
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g1_nc:var64
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g2_nc:var64
|
|
; CHECK: movk x[[ADDR_REG]], #:abs_g3:var64
|
|
; CHECK: ldr x0, [x[[ADDR_REG]]]
|
|
}
|