diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/absolute-symbol-kernel-code-model.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/absolute-symbol-kernel-code-model.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/absolute-symbol-kernel-code-model.ll b/llvm/test/CodeGen/X86/absolute-symbol-kernel-code-model.ll new file mode 100644 index 0000000..ce7024d --- /dev/null +++ b/llvm/test/CodeGen/X86/absolute-symbol-kernel-code-model.ll @@ -0,0 +1,34 @@ +; RUN: llc --code-model=kernel < %s -asm-verbose=0 | FileCheck %s + +target triple = "x86_64-unknown-linux-gnu" + +; CHECK-LABEL: func_no_abs_sym +define i64 @func_no_abs_sym() nounwind { + ; CHECK: movq $no_abs_sym, %rax + %1 = ptrtoint ptr @no_abs_sym to i64 + ret i64 %1 +} + +; CHECK-LABEL: func_abs_sym +define i64 @func_abs_sym() nounwind { + ; CHECK: movabsq $abs_sym, %rax + %1 = ptrtoint ptr @abs_sym to i64 + ret i64 %1 +} + +; CHECK-LABEL: func_abs_sym_in_range +define i64 @func_abs_sym_in_range() nounwind { + ;; The absolute_symbol range fits in 32 bits but we still use movabs + ;; since there's no benefit to using the sign extending instruction + ;; with absolute symbols. + ; CHECK: movabsq $abs_sym_in_range, %rax + %1 = ptrtoint ptr @abs_sym_in_range to i64 + ret i64 %1 +} + +@no_abs_sym = external hidden global [0 x i8] +@abs_sym = external hidden global [0 x i8], !absolute_symbol !0 +@abs_sym_in_range = external hidden global [0 x i8], !absolute_symbol !1 + +!0 = !{i64 -1, i64 -1} ;; Full range +!1 = !{i64 -2147483648, i64 2147483648} ;; In range |