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llvm-mirror/test/CodeGen/AArch64/extern-weak.ll
Stephen Lin 3ae734a60c Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.
This was done with the following sed invocation to catch label lines demarking function boundaries:
    sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll
which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct.

llvm-svn: 186258
2013-07-13 20:38:47 +00:00

55 lines
1.7 KiB
LLVM

; RUN: llc -mtriple=aarch64-none-linux-gnu -o - < %s | FileCheck %s
; RUN: llc -mtriple=aarch64-none-linux-gnu -code-model=large -o - < %s | FileCheck --check-prefix=CHECK-LARGE %s
declare extern_weak i32 @var()
define i32()* @foo() {
; The usual ADRP/ADD pair can't be used for a weak reference because it must
; evaluate to 0 if the symbol is undefined. We use a litpool entry.
ret i32()* @var
; CHECK: .LCPI0_0:
; CHECK-NEXT: .xword var
; CHECK: ldr x0, [{{x[0-9]+}}, #:lo12:.LCPI0_0]
; In the large model, the usual relocations are absolute and can
; materialise 0.
; CHECK-LARGE: movz x0, #:abs_g3:var
; CHECK-LARGE: movk x0, #:abs_g2_nc:var
; CHECK-LARGE: movk x0, #:abs_g1_nc:var
; CHECK-LARGE: movk x0, #:abs_g0_nc:var
}
@arr_var = extern_weak global [10 x i32]
define i32* @bar() {
%addr = getelementptr [10 x i32]* @arr_var, i32 0, i32 5
; CHECK: .LCPI1_0:
; CHECK-NEXT: .xword arr_var
; CHECK: ldr [[BASE:x[0-9]+]], [{{x[0-9]+}}, #:lo12:.LCPI1_0]
; CHECK: add x0, [[BASE]], #20
ret i32* %addr
; In the large model, the usual relocations are absolute and can
; materialise 0.
; CHECK-LARGE: movz x0, #:abs_g3:arr_var
; CHECK-LARGE: movk x0, #:abs_g2_nc:arr_var
; CHECK-LARGE: movk x0, #:abs_g1_nc:arr_var
; CHECK-LARGE: movk x0, #:abs_g0_nc:arr_var
}
@defined_weak_var = internal unnamed_addr global i32 0
define i32* @wibble() {
ret i32* @defined_weak_var
; CHECK: adrp [[BASE:x[0-9]+]], defined_weak_var
; CHECK: add x0, [[BASE]], #:lo12:defined_weak_var
; CHECK-LARGE: movz x0, #:abs_g3:defined_weak_var
; CHECK-LARGE: movk x0, #:abs_g2_nc:defined_weak_var
; CHECK-LARGE: movk x0, #:abs_g1_nc:defined_weak_var
; CHECK-LARGE: movk x0, #:abs_g0_nc:defined_weak_var
}