| // REQUIRES: arm |
| // RUN: llvm-mc -filetype=obj -triple=thumbv7-windows %s -o %t.obj |
| // RUN: lld-link -entry:main -subsystem:console %t.obj -out:%t.exe -map -verbose 2>&1 | FileCheck -check-prefix=VERBOSE %s |
| // RUN: llvm-objdump -d %t.exe --start-address=0x401000 --stop-address=0x401022 | FileCheck --check-prefix=MAIN %s |
| // RUN: llvm-objdump -d %t.exe --start-address=0x501022 --stop-address=0x501032 | FileCheck --check-prefix=FUNC1 %s |
| // RUN: llvm-objdump -d %t.exe --start-address=0x601032 | FileCheck --check-prefix=FUNC2 %s |
| |
| // VERBOSE: Added 3 thunks with margin {{.*}} in 1 passes |
| |
| .syntax unified |
| .globl main |
| .globl func1 |
| .text |
| main: |
| bne func1 |
| bne func2 |
| // This should reuse the same thunk as func1 above |
| bne func1_alias |
| bx lr |
| .section .text$a, "xr" |
| .space 0x100000 |
| .section .text$b, "xr" |
| func1: |
| func1_alias: |
| // This shouldn't reuse the func2 thunk from above, since it is out |
| // of range. |
| bne func2 |
| bx lr |
| .section .text$c, "xr" |
| .space 0x100000 |
| .section .text$d, "xr" |
| func2: |
| // Test using string tail merging. This is irrelevant to the thunking itself, |
| // but running multiple passes of assignAddresses() calls finalizeAddresses() |
| // multiple times; check that MergeChunk handles this correctly. |
| movw r0, :lower16:"??_C@string1" |
| movt r0, :upper16:"??_C@string1" |
| movw r1, :lower16:"??_C@string2" |
| movt r1, :upper16:"??_C@string2" |
| bx lr |
| |
| .section .rdata,"dr",discard,"??_C@string1" |
| .globl "??_C@string1" |
| "??_C@string1": |
| .asciz "foobar" |
| .section .rdata,"dr",discard,"??_C@string2" |
| .globl "??_C@string2" |
| "??_C@string2": |
| .asciz "bar" |
| |
| // MAIN: 401000: f040 8005 bne.w 0x40100e <.text+0xe> |
| // MAIN: 401004: f040 8008 bne.w 0x401018 <.text+0x18> |
| // MAIN: 401008: f040 8001 bne.w 0x40100e <.text+0xe> |
| // MAIN: 40100c: 4770 bx lr |
| // func1 thunk |
| // MAIN: 40100e: f240 0c08 movw r12, #8 |
| // MAIN: 401012: f2c0 0c10 movt r12, #16 |
| // MAIN: 401016: 44e7 add pc, r12 |
| // func2 thunk |
| // MAIN: 401018: f240 0c0e movw r12, #14 |
| // MAIN: 40101c: f2c0 0c20 movt r12, #32 |
| // MAIN: 401020: 44e7 add pc, r12 |
| |
| // FUNC1: 501022: f040 8001 bne.w 0x501028 <.text+0x100028> |
| // FUNC1: 501026: 4770 bx lr |
| // func2 thunk |
| // FUNC1: 501028: f64f 7cfe movw r12, #65534 |
| // FUNC1: 50102c: f2c0 0c0f movt r12, #15 |
| // FUNC1: 501030: 44e7 add pc, r12 |
| |
| // FUNC2: 601032: f242 0000 movw r0, #8192 |
| // FUNC2: 601036: f2c0 0060 movt r0, #96 |
| // FUNC2: 60103a: f242 0103 movw r1, #8195 |
| // FUNC2: 60103e: f2c0 0160 movt r1, #96 |
| // FUNC2: 601042: 4770 bx lr |
