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Diffstat (limited to 'test/COFF/arm-thumb-thunks.s')
| -rw-r--r-- | test/COFF/arm-thumb-thunks.s | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/test/COFF/arm-thumb-thunks.s b/test/COFF/arm-thumb-thunks.s new file mode 100644 index 000000000000..33c3740ba8cb --- /dev/null +++ b/test/COFF/arm-thumb-thunks.s @@ -0,0 +1,75 @@ +// 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 -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: 40 f0 05 80 bne.w #10 <.text+0xe> +// MAIN: 401004: 40 f0 08 80 bne.w #16 <.text+0x18> +// MAIN: 401008: 40 f0 01 80 bne.w #2 <.text+0xe> +// MAIN: 40100c: 70 47 bx lr +// func1 thunk +// MAIN: 40100e: 40 f2 08 0c movw r12, #8 +// MAIN: 401012: c0 f2 10 0c movt r12, #16 +// MAIN: 401016: e7 44 add pc, r12 +// func2 thunk +// MAIN: 401018: 40 f2 0e 0c movw r12, #14 +// MAIN: 40101c: c0 f2 20 0c movt r12, #32 +// MAIN: 401020: e7 44 add pc, r12 + +// FUNC1: 501022: 40 f0 01 80 bne.w #2 <.text+0x100028> +// FUNC1: 501026: 70 47 bx lr +// func2 thunk +// FUNC1: 501028: 4f f6 fe 7c movw r12, #65534 +// FUNC1: 50102c: c0 f2 0f 0c movt r12, #15 +// FUNC1: 501030: e7 44 add pc, r12 + +// FUNC2: 601032: 42 f2 00 00 movw r0, #8192 +// FUNC2: 601036: c0 f2 60 00 movt r0, #96 +// FUNC2: 60103a: 42 f2 03 01 movw r1, #8195 +// FUNC2: 60103e: c0 f2 60 01 movt r1, #96 +// FUNC2: 601042: 70 47 bx lr |