derek.holloway
7502bf64a4
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134 lines
5.9 KiB
ArmAsm
134 lines
5.9 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/align-empty.s -o %t/align-empty.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-4-0.s -o %t/align-4-0.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-4-2.s -o %t/align-4-2.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-0.s -o %t/align-16-0.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-2.s -o %t/align-16-2.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-4.s -o %t/align-16-4.o
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/align-16-8.s -o %t/align-16-8.o
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## Check that we preserve the alignment of cstrings. Alignment is determined
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## not by section alignment but by the number of trailing zeros of the cstring's
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## address in the input object file.
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## The non-dedup case is not particularly interesting since the null bytes don't
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## get dedup'ed, meaning that the output strings get their offsets "naturally"
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## preserved.
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# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-4-0.o %t/align-16-0.o -o %t/align-4-0-16-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-4-0-16-0 | \
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# RUN: FileCheck %s -D#OFF1=4 -D#OFF2=16
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# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-16-0.o %t/align-4-0.o -o %t/align-16-0-4-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-16-0-4-0 | \
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# RUN: FileCheck %s -D#OFF1=16 -D#OFF2=20
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# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-4-2.o %t/align-16-0.o -o %t/align-4-2-16-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-4-2-16-0 | \
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# RUN: FileCheck %s -D#OFF1=6 -D#OFF2=16
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# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-16-0.o %t/align-4-2.o -o %t/align-16-0-4-2
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-16-0-4-2 | \
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# RUN: FileCheck %s -D#OFF1=16 -D#OFF2=22
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# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-4-0.o %t/align-16-2.o -o %t/align-4-0-16-2
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-4-0-16-2 | \
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# RUN: FileCheck %s -D#OFF1=4 -D#OFF2=18
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# RUN: %lld -dylib --no-deduplicate-strings %t/align-empty.o %t/align-16-2.o %t/align-4-0.o -o %t/align-16-2-4-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/align-16-2-4-0 | \
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# RUN: FileCheck %s -D#OFF1=18 -D#OFF2=20
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# CHECK: Contents of (__TEXT,__cstring) section
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# CHECK-NEXT: [[#%.16x,START:]] {{$}}
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# CHECK: [[#%.16x,START+OFF1]] a{{$}}
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# CHECK: [[#%.16x,START+OFF2]] a{{$}}
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# CHECK-EMPTY:
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## The dedup cases are more interesting...
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## Same offset, different alignments => pick higher alignment
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# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-0.o -o %t/dedup-4-0-16-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-0 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
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# RUN: %lld -dylib %t/align-empty.o %t/align-16-0.o %t/align-4-0.o -o %t/dedup-16-0-4-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-0-4-0 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
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## 16 byte alignment vs 2 byte offset => align to 16 bytes
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# RUN: %lld -dylib %t/align-empty.o %t/align-4-2.o %t/align-16-0.o -o %t/dedup-4-2-16-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-2-16-0 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
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# RUN: %lld -dylib %t/align-empty.o %t/align-16-0.o %t/align-4-2.o -o %t/dedup-16-0-4-2
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-0-4-2 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=16
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## 4 byte alignment vs 2 byte offset => align to 4 bytes
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# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-2.o -o %t/dedup-4-0-16-2
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-2 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
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# RUN: %lld -dylib %t/align-empty.o %t/align-16-2.o %t/align-4-0.o -o %t/dedup-16-2-4-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-2-4-0 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
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## Both inputs are 4-byte aligned, one via offset and the other via section alignment
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# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-4.o -o %t/dedup-4-0-16-4
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-4 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
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# RUN: %lld -dylib %t/align-empty.o %t/align-16-4.o %t/align-4-0.o -o %t/dedup-16-4-4-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-4-4-0 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=4
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## 8-byte offset vs 4-byte section alignment => align to 8 bytes
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# RUN: %lld -dylib %t/align-empty.o %t/align-4-0.o %t/align-16-8.o -o %t/dedup-4-0-16-8
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-4-0-16-8 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=8
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# RUN: %lld -dylib %t/align-empty.o %t/align-16-8.o %t/align-4-0.o -o %t/dedup-16-8-4-0
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# RUN: llvm-objdump --macho --section="__TEXT,__cstring" %t/dedup-16-8-4-0 | \
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# RUN: FileCheck %s --check-prefix=DEDUP -D#OFF=8
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# DEDUP: Contents of (__TEXT,__cstring) section
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# DEDUP-NEXT: [[#%.16x,START:]] {{$}}
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# DEDUP: [[#%.16x,START+OFF]] a{{$}}
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# DEDUP-EMPTY:
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#--- align-empty.s
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## We use this file to create an empty string at the start of every output
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## file's .cstring section. This makes the test cases more interesting since LLD
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## can't place the string "a" at the trivially-aligned zero offset.
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.cstring
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.p2align 2
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.asciz ""
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#--- align-4-0.s
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.cstring
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.p2align 2
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.asciz "a"
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#--- align-4-2.s
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.cstring
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.p2align 2
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.zero 0x2
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.asciz "a"
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#--- align-16-0.s
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.cstring
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.p2align 4
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.asciz "a"
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#--- align-16-2.s
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.cstring
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.p2align 4
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.zero 0x2
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.asciz "a"
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#--- align-16-4.s
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.cstring
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.p2align 4
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.zero 0x4
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.asciz "a"
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#--- align-16-8.s
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.cstring
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.p2align 4
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.zero 0x8
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.asciz "a"
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