derek.holloway
7502bf64a4
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76 lines
3.1 KiB
ArmAsm
76 lines
3.1 KiB
ArmAsm
# REQUIRES: x86
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# RUN: rm -rf %t; split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/same-size.s -o %t/same-size.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/smaller-size.s -o %t/smaller-size.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/zero-align.s -o %t/zero-align.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/zero-align-round-up.s -o %t/zero-align-round-up.o
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## Check that we pick the definition with the larger size, regardless of
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## its alignment.
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# RUN: %lld %t/test.o %t/smaller-size.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=8
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# RUN: %lld %t/smaller-size.o %t/test.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=8
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## When the sizes are equal, we pick the symbol whose file occurs later in the
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## command-line argument list.
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# RUN: %lld %t/test.o %t/same-size.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=16
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# RUN: %lld %t/same-size.o %t/test.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=8
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# RUN: %lld %t/test.o %t/zero-align.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=16
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# RUN: %lld %t/zero-align.o %t/test.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=16
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# RUN: %lld %t/test.o %t/zero-align-round-up.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=16
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# RUN: %lld %t/zero-align-round-up.o %t/test.o -order_file %t/order -o %t/test
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# RUN: llvm-objdump --section-headers --syms %t/test | FileCheck %s -D#ALIGN=16
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# CHECK-LABEL: Sections:
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# CHECK: __common {{[0-9a-f]+}} [[#%.16x, COMMON_START:]] BSS
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# CHECK-LABEL: SYMBOL TABLE:
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# CHECK-DAG: [[#%.16x, COMMON_START]] g O __DATA,__common _check_size
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# CHECK-DAG: [[#%.16x, COMMON_START + 2]] g O __DATA,__common _end_marker
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# CHECK-DAG: [[#%.16x, COMMON_START + ALIGN]] g O __DATA,__common _check_alignment
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#--- order
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## Order is important as we determine the size of a given symbol via the
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## address of the next symbol.
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_check_size
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_end_marker
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_check_alignment
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#--- smaller-size.s
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.comm _check_size, 1, 1
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.comm _check_alignment, 1, 4
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#--- same-size.s
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.comm _check_size, 2, 1
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.comm _check_alignment, 2, 4
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#--- zero-align.s
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.comm _check_size, 2, 1
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## If alignment is set to zero, use the size to determine the alignment.
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.comm _check_alignment, 16, 0
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#--- zero-align-round-up.s
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.comm _check_size, 2, 1
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## If alignment is set to zero, use the size to determine the alignment. If the
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## size is not a power of two, round it up. (In this case, 14 rounds to 16.)
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.comm _check_alignment, 14, 0
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#--- test.s
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.comm _check_size, 2, 1
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.comm _end_marker, 1
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.comm _check_alignment, 2, 3
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.globl _main
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_main:
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ret
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