mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-06 10:58:44 +00:00
5d88cb6cf6
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 llvm-svn: 292422
31 lines
1.0 KiB
LLVM
31 lines
1.0 KiB
LLVM
; RUN: llc < %s -mtriple=arm64-apple-ios | FileCheck %s
|
|
; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s --check-prefix=CHECK-LINUX
|
|
; RUN: llc < %s -mtriple=arm64-linux-gnu -code-model=large| FileCheck %s --check-prefix=CHECK-LARGE
|
|
|
|
; rdar://9188695
|
|
|
|
define i64 @t() nounwind ssp {
|
|
entry:
|
|
; CHECK-LABEL: t:
|
|
; CHECK: adrp [[REG:x[0-9]+]], Ltmp1@PAGE
|
|
; CHECK: add {{x[0-9]+}}, [[REG]], Ltmp1@PAGEOFF
|
|
|
|
; CHECK-LINUX-LABEL: t:
|
|
; CHECK-LINUX: adrp [[REG:x[0-9]+]], .Ltmp1
|
|
; CHECK-LINUX: add {{x[0-9]+}}, [[REG]], :lo12:.Ltmp1
|
|
|
|
; CHECK-LARGE-LABEL: t:
|
|
; CHECK-LARGE: movz [[ADDR_REG:x[0-9]+]], #:abs_g0_nc:[[DEST_LBL:.Ltmp[0-9]+]]
|
|
; CHECK-LARGE: movk [[ADDR_REG]], #:abs_g1_nc:[[DEST_LBL]]
|
|
; CHECK-LARGE: movk [[ADDR_REG]], #:abs_g2_nc:[[DEST_LBL]]
|
|
; CHECK-LARGE: movk [[ADDR_REG]], #:abs_g3:[[DEST_LBL]]
|
|
|
|
%recover = alloca i64, align 8
|
|
store volatile i64 ptrtoint (i8* blockaddress(@t, %mylabel) to i64), i64* %recover, align 8
|
|
br label %mylabel
|
|
|
|
mylabel:
|
|
%tmp = load volatile i64, i64* %recover, align 8
|
|
ret i64 %tmp
|
|
}
|