llvm-6502/test/CodeGen/ARM/load-global.ll
Evan Cheng 53519f015e Last round of fixes for movw + movt global address codegen.
1. Fixed ARM pc adjustment.
2. Fixed dynamic-no-pic codegen
3. CSE of pc-relative load of global addresses.

It's now enabled by default for Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123991 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-21 18:55:51 +00:00

51 lines
1.5 KiB
LLVM

; RUN: llc < %s -mtriple=armv6-apple-darwin -relocation-model=static | FileCheck %s -check-prefix=STATIC
; RUN: llc < %s -mtriple=armv6-apple-darwin -relocation-model=dynamic-no-pic | FileCheck %s -check-prefix=DYNAMIC
; RUN: llc < %s -mtriple=armv6-apple-darwin -relocation-model=pic | FileCheck %s -check-prefix=PIC
; RUN: llc < %s -mtriple=thumbv6-apple-darwin -relocation-model=pic | FileCheck %s -check-prefix=PIC_T
; RUN: llc < %s -mtriple=armv7-apple-darwin -relocation-model=pic | FileCheck %s -check-prefix=PIC_V7
; RUN: llc < %s -mtriple=armv6-linux-gnueabi -relocation-model=pic | FileCheck %s -check-prefix=LINUX
@G = external global i32
define i32 @test1() {
; STATIC: _test1:
; STATIC: ldr r0, LCPI0_0
; STATIC: ldr r0, [r0]
; STATIC: .long _G
; DYNAMIC: _test1:
; DYNAMIC: ldr r0, LCPI0_0
; DYNAMIC: ldr r0, [r0]
; DYNAMIC: ldr r0, [r0]
; DYNAMIC: .long L_G$non_lazy_ptr
; PIC: _test1
; PIC: ldr r0, LCPI0_0
; PIC: ldr r0, [pc, r0]
; PIC: ldr r0, [r0]
; PIC: .long L_G$non_lazy_ptr-(LPC0_0+8)
; PIC_T: _test1
; PIC_T: ldr.n r0, LCPI0_0
; PIC_T: add r0, pc
; PIC_T: ldr r0, [r0]
; PIC_T: ldr r0, [r0]
; PIC_T: .long L_G$non_lazy_ptr-(LPC0_0+4)
; PIC_V7: _test1
; PIC_V7: movw r0, :lower16:(L_G$non_lazy_ptr-(LPC0_0+8))
; PIC_V7: movt r0, :upper16:(L_G$non_lazy_ptr-(LPC0_0+8))
; PIC_V7: ldr r0, [pc, r0]
; PIC_V7: ldr r0, [r0]
; LINUX: test1
; LINUX: ldr r0, .LCPI0_0
; LINUX: ldr r1, .LCPI0_1
; LINUX: add r0, pc, r0
; LINUX: ldr r0, [r1, r0]
; LINUX: ldr r0, [r0]
; LINUX: .long G(GOT)
%tmp = load i32* @G
ret i32 %tmp
}