| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -O2 -mtriple=m68k-linux-gnu -verify-machineinstrs \ |
| ; RUN: -code-model=medium -relocation-model=pic \ |
| ; RUN: | FileCheck %s |
| |
| ; External Linkage |
| @a = global i32 0, align 4 |
| |
| define i32 @my_access_global_a() #0 { |
| ; CHECK-LABEL: my_access_global_a: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l (a@GOTPCREL,%pc), %a0 |
| ; CHECK-NEXT: move.l (%a0), %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %0 = load i32, i32* @a, align 4 |
| ret i32 %0 |
| } |
| |
| ; WeakAny Linkage |
| @b = weak global i32 0, align 4 |
| |
| define i32 @my_access_global_b() #0 { |
| ; CHECK-LABEL: my_access_global_b: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l (b@GOTPCREL,%pc), %a0 |
| ; CHECK-NEXT: move.l (%a0), %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %0 = load i32, i32* @b, align 4 |
| ret i32 %0 |
| } |
| |
| ; Internal Linkage |
| @c = internal global i32 0, align 4 |
| |
| define i32 @my_access_global_c() #0 { |
| ; CHECK-LABEL: my_access_global_c: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: lea (_GLOBAL_OFFSET_TABLE_@GOTPCREL,%pc), %a0 |
| ; CHECK-NEXT: move.l #c@GOTOFF, %d0 |
| ; CHECK-NEXT: move.l (0,%a0,%d0), %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %0 = load i32, i32* @c, align 4 |
| ret i32 %0 |
| } |
| |
| ; External Linkage, only declaration. |
| @d = external global i32, align 4 |
| |
| define i32 @my_access_global_load_d() #0 { |
| ; CHECK-LABEL: my_access_global_load_d: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l (d@GOTPCREL,%pc), %a0 |
| ; CHECK-NEXT: move.l (%a0), %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| %0 = load i32, i32* @d, align 4 |
| ret i32 %0 |
| } |
| |
| ; External Linkage, only declaration, store a value. |
| define i32 @my_access_global_store_d() #0 { |
| ; CHECK-LABEL: my_access_global_store_d: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l (d@GOTPCREL,%pc), %a0 |
| ; CHECK-NEXT: move.l #2, (%a0) |
| ; CHECK-NEXT: move.l #0, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| store i32 2, i32* @d, align 4 |
| ret i32 0 |
| } |
| |
| ; External Linkage, function pointer access. |
| declare i32 @access_fp(i32 ()*) |
| declare i32 @foo() |
| |
| define i32 @my_access_fp_foo() #0 { |
| ; CHECK-LABEL: my_access_fp_foo: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: sub.l #4, %sp |
| ; CHECK-NEXT: .cfi_def_cfa_offset -8 |
| ; CHECK-NEXT: move.l (foo@GOTPCREL,%pc), (%sp) |
| ; CHECK-NEXT: jsr (access_fp@PLT,%pc) |
| ; CHECK-NEXT: add.l #4, %sp |
| ; CHECK-NEXT: rts |
| entry: |
| %call = call i32 @access_fp(i32 ()* @foo) |
| ret i32 %call |
| } |
| |
| ; LinkOnceODR Linkage, function pointer access. |
| |
| $bar = comdat any |
| |
| define linkonce_odr i32 @bar() comdat { |
| ; CHECK-LABEL: bar: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: move.l #0, %d0 |
| ; CHECK-NEXT: rts |
| entry: |
| ret i32 0 |
| } |
| |
| define i32 @my_access_fp_bar() #0 { |
| ; CHECK-LABEL: my_access_fp_bar: |
| ; CHECK: .cfi_startproc |
| ; CHECK-NEXT: ; %bb.0: ; %entry |
| ; CHECK-NEXT: sub.l #4, %sp |
| ; CHECK-NEXT: .cfi_def_cfa_offset -8 |
| ; CHECK-NEXT: move.l (bar@GOTPCREL,%pc), (%sp) |
| ; CHECK-NEXT: jsr (access_fp@PLT,%pc) |
| ; CHECK-NEXT: add.l #4, %sp |
| ; CHECK-NEXT: rts |
| entry: |
| %call = call i32 @access_fp(i32 ()* @bar) |
| ret i32 %call |
| } |
| |
| !llvm.module.flags = !{!0, !1} |
| !0 = !{i32 1, !"PIC Level", i32 1} |
| !1 = !{i32 1, !"PIE Level", i32 1} |