llvm-6502/test/CodeGen/ARM/cse-ldrlit.ll
Tim Northover 19734e7811 ARM: correctly expand LDR-lit based globals.
Quite a major error here: the expansions for the Pseudos with and without
folded load were mixed up. Fortunately it only affects ARM-mode, when not using
movw/movt, on Darwin. I'm guessing no-one actually uses that combination.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223986 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-10 23:40:50 +00:00

62 lines
2.0 KiB
LLVM

; RUN: llc -mtriple=thumbv6m-apple-none-macho -relocation-model=pic -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-PIC
; RUN: llc -mtriple=arm-apple-none-macho -relocation-model=pic -o - %s | FileCheck %s --check-prefix=CHECK-ARM-PIC
; RUN: llc -mtriple=thumbv6m-apple-none-macho -relocation-model=dynamic-no-pic -o - %s | FileCheck %s --check-prefix=CHECK-DYNAMIC
; RUN: llc -mtriple=arm-apple-none-macho -relocation-model=dynamic-no-pic -o - %s | FileCheck %s --check-prefix=CHECK-DYNAMIC
; RUN: llc -mtriple=thumbv6m-apple-none-macho -relocation-model=static -o - %s | FileCheck %s --check-prefix=CHECK-STATIC
; RUN: llc -mtriple=arm-apple-none-macho -relocation-model=static -o - %s | FileCheck %s --check-prefix=CHECK-STATIC
@var = global [16 x i32] zeroinitializer
declare void @bar(i32*)
define void @foo() {
%flag = load i32* getelementptr inbounds([16 x i32]* @var, i32 0, i32 1)
%tst = icmp eq i32 %flag, 0
br i1 %tst, label %true, label %false
true:
tail call void @bar(i32* getelementptr inbounds([16 x i32]* @var, i32 0, i32 4))
ret void
false:
ret void
}
; CHECK-THUMB-PIC-LABEL: foo:
; CHECK-THUMB-PIC: ldr r0, LCPI0_0
; CHECK-THUMB-PIC: LPC0_0:
; CHECK-THUMB-PIC-NEXT: add r0, pc
; CHECK-THUMB-PIC: ldr {{r[1-9][0-9]?}}, [r0, #4]
; CHECK-THUMB-PIC: LCPI0_0:
; CHECK-THUMB-PIC-NEXT: .long _var-(LPC0_0+4)
; CHECK-THUMB-PIC-NOT: LCPI0_1
; CHECK-ARM-PIC-LABEL: foo:
; CHECK-ARM-PIC: ldr [[VAR_OFFSET:r[0-9]+]], LCPI0_0
; CHECK-ARM-PIC: LPC0_0:
; CHECK-ARM-PIC-NEXT: add r0, pc, [[VAR_OFFSET]]
; CHECK-ARM-PIC: ldr {{r[0-9]+}}, [r0, #4]
; CHECK-ARM-PIC: LCPI0_0:
; CHECK-ARM-PIC-NEXT: .long _var-(LPC0_0+8)
; CHECK-ARM-PIC-NOT: LCPI0_1
; CHECK-DYNAMIC-LABEL: foo:
; CHECK-DYNAMIC: ldr r0, LCPI0_0
; CHECK-DYNAMIC: ldr {{r[1-9][0-9]?}}, [r0, #4]
; CHECK-DYNAMIC: LCPI0_0:
; CHECK-DYNAMIC-NEXT: .long _var
; CHECK-DYNAMIC-NOT: LCPI0_1
; CHECK-STATIC-LABEL: foo:
; CHECK-STATIC: ldr r0, LCPI0_0
; CHECK-STATIC: ldr {{r[1-9][0-9]?}}, [r0, #4]
; CHECK-STATIC: LCPI0_0:
; CHECK-STATIC-NEXT: .long _var{{$}}
; CHECK-STATIC-NOT: LCPI0_1