| ; Sample program that generates "str reg, [fp, #CCCC]", to show that we |
| ; recognize that "fp" should be used instead of "sp". |
| |
| ; REQUIRES: allow_dump |
| |
| ; Compile using standalone assembler. |
| ; RUN: %p2i --filetype=asm -i %s --target=arm32 --args -Om1 \ |
| ; RUN: | FileCheck %s --check-prefix=ASM |
| |
| ; Show bytes in assembled standalone code. |
| ; RUN: %p2i --filetype=asm -i %s --target=arm32 --assemble --disassemble \ |
| ; RUN: --args -Om1 | FileCheck %s --check-prefix=DIS |
| |
| ; Compile using integrated assembler. |
| ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --args -Om1 \ |
| ; RUN: | FileCheck %s --check-prefix=IASM |
| |
| ; Show bytes in assembled integrated code. |
| ; RUN: %p2i --filetype=iasm -i %s --target=arm32 --assemble --disassemble \ |
| ; RUN: --args -Om1 | FileCheck %s --check-prefix=DIS |
| |
| define internal void @test_vla_in_loop(i32 %n) { |
| ; ASM-LABEL: test_vla_in_loop: |
| ; DIS-LABEL: 00000000 <test_vla_in_loop>: |
| ; IASM-LABEL: test_vla_in_loop: |
| |
| entry: |
| |
| ; ASM-NEXT: .Ltest_vla_in_loop$entry: |
| ; IASM-NEXT: .Ltest_vla_in_loop$entry: |
| |
| ; ASM-NEXT: push {fp} |
| ; DIS-NEXT: 0: e52db004 |
| ; IASM-NEXT: .byte 0x4 |
| ; IASM-NEXT: .byte 0xb0 |
| ; IASM-NEXT: .byte 0x2d |
| ; IASM-NEXT: .byte 0xe5 |
| |
| ; ASM-NEXT: mov fp, sp |
| ; DIS-NEXT: 4: e1a0b00d |
| ; IASM-NEXT: .byte 0xd |
| ; IASM-NEXT: .byte 0xb0 |
| ; IASM-NEXT: .byte 0xa0 |
| ; IASM-NEXT: .byte 0xe1 |
| |
| ; ASM-NEXT: sub sp, sp, #12 |
| ; DIS-NEXT: 8: e24dd00c |
| ; IASM-NEXT: .byte 0xc |
| ; IASM-NEXT: .byte 0xd0 |
| ; IASM-NEXT: .byte 0x4d |
| ; IASM-NEXT: .byte 0xe2 |
| |
| ; **** Example of fixed instruction. |
| ; ASM-NEXT: str r0, [fp, #-4] |
| ; DIS-NEXT: c: e50b0004 |
| ; IASM-NEXT: .byte 0x4 |
| ; IASM-NEXT: .byte 0x0 |
| ; IASM-NEXT: .byte 0xb |
| ; IASM-NEXT: .byte 0xe5 |
| ; ASM-NEXT: # [fp, #-4] = def.pseudo |
| br label %next |
| |
| ; ASM-NEXT: b .Ltest_vla_in_loop$next |
| ; DIS-NEXT: 10: eaffffff |
| |
| ; IASM-NEXT: .byte 0xff |
| ; IASM-NEXT: .byte 0xff |
| ; IASM-NEXT: .byte 0xff |
| ; IASM-NEXT: .byte 0xea |
| |
| ; Put the variable-length alloca in a non-entry block, to reduce the |
| ; chance the optimizer putting it before the regular frame creation. |
| |
| next: |
| %v = alloca i8, i32 %n, align 4 |
| ret void |
| } |