diff options
Diffstat (limited to 'test/CodeGen/AArch64/extern-weak.ll')
| -rw-r--r-- | test/CodeGen/AArch64/extern-weak.ll | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/test/CodeGen/AArch64/extern-weak.ll b/test/CodeGen/AArch64/extern-weak.ll index ce5c0f6..f647c4b 100644 --- a/test/CodeGen/AArch64/extern-weak.ll +++ b/test/CodeGen/AArch64/extern-weak.ll @@ -1,17 +1,24 @@ -; RUN: llc -mtriple=aarch64-none-linux-gnu -o - %s | FileCheck %s +; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s +; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=static -o - < %s | FileCheck --check-prefix=CHECK-STATIC %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. +; evaluate to 0 if the symbol is undefined. We use a GOT entry for PIC +; otherwise a litpool entry. ret i32()* @var ; CHECK: adrp x[[ADDRHI:[0-9]+]], :got:var ; CHECK: ldr x0, [x[[ADDRHI]], :got_lo12:var] +; CHECK-STATIC: .LCPI0_0: +; CHECK-STATIC-NEXT: .xword var +; CHECK-STATIC: adrp x[[VAR:[0-9]+]], .LCPI0_0 +; CHECK-STATIC: ldr x0, [x[[VAR]], :lo12:.LCPI0_0] + ; In the large model, the usual relocations are absolute and can ; materialise 0. ; CHECK-LARGE: movz x0, #:abs_g3:var @@ -31,6 +38,11 @@ define i32* @bar() { ; CHECK: ldr [[BASE:x[0-9]+]], [x[[ADDRHI]], :got_lo12:arr_var] ; CHECK: add x0, [[BASE]], #20 +; CHECK-STATIC: .LCPI1_0: +; CHECK-STATIC-NEXT: .xword arr_var +; CHECK-STATIC: ldr [[BASE:x[0-9]+]], [{{x[0-9]+}}, :lo12:.LCPI1_0] +; CHECK-STATIC: add x0, [[BASE]], #20 + ret i32* %addr ; In the large model, the usual relocations are absolute and can @@ -49,6 +61,9 @@ define i32* @wibble() { ; CHECK: adrp [[BASE:x[0-9]+]], defined_weak_var ; CHECK: add x0, [[BASE]], :lo12:defined_weak_var +; CHECK-STATIC: adrp [[BASE:x[0-9]+]], defined_weak_var +; CHECK-STATIC: 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 |