test/MC/X86/AlignedBundling/long-nop-pad.s - Issue 1133723005: Cherry-pick r234714: [MC] Write padding into fragments when -mc-relax-all flag is used

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Issue 1133723005: Cherry-pick r234714: [MC] Write padding into fragments when -mc-relax-all flag is used (Closed) Base URL: http://git.chromium.org/native_client/pnacl-llvm.git@master

Patch Set: Rebase Created 5 years, 7 months ago

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1 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \	1 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \

2 # RUN: \| llvm-objdump -disassemble -no-show-raw-insn - \| FileCheck %s	2 # RUN: \| llvm-objdump -disassemble -no-show-raw-insn - \| FileCheck %s

	3 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \

	4 # RUN: \| llvm-objdump -disassemble -no-show-raw-insn - \| FileCheck %s

3	5

4 # Test that long nops are generated for padding where possible.	6 # Test that long nops are generated for padding where possible.

5	7

6 .text	8 .text

7 foo:	9 foo:

8 .bundle_align_mode 5	10 .bundle_align_mode 5

9	11

10 # This callq instruction is 5 bytes long	12 # This callq instruction is 5 bytes long

11 .bundle_lock align_to_end	13 .bundle_lock align_to_end

12 callq bar	14 callq bar

13 .bundle_unlock	15 .bundle_unlock

14 # To align this group to a bundle end, we need a 15-byte NOP and a 12-byte NOP.	16 # To align this group to a bundle end, we need a 15-byte NOP and a 12-byte NOP.

15 # CHECK: 0: nop	17 # CHECK: 0: nop

16 # CHECK-NEXT: f: nop	18 # CHECK-NEXT: f: nop

17 # CHECK: 1b: callq	19 # CHECK: 1b: callq

18	20

19 # This push instruction is 1 byte long	21 # This push instruction is 1 byte long

20 .bundle_lock align_to_end	22 .bundle_lock align_to_end

21 push %rax	23 push %rax

22 .bundle_unlock	24 .bundle_unlock

23 # To align this group to a bundle end, we need two 15-byte NOPs, and a 1-byte.	25 # To align this group to a bundle end, we need two 15-byte NOPs, and a 1-byte.

24 # CHECK: 20: nop	26 # CHECK: 20: nop

25 # CHECK-NEXT: 2f: nop	27 # CHECK-NEXT: 2f: nop

26 # CHECK-NEXT: 3e: nop	28 # CHECK-NEXT: 3e: nop

27 # CHECK-NEXT: 3f: pushq	29 # CHECK-NEXT: 3f: pushq

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