diff options
Diffstat (limited to 'test/MC')
-rw-r--r-- | test/MC/MachO/relax-jumps.s | 31 | ||||
-rw-r--r-- | test/MC/MachO/relax-recompute-align.s | 37 |
2 files changed, 68 insertions, 0 deletions
diff --git a/test/MC/MachO/relax-jumps.s b/test/MC/MachO/relax-jumps.s new file mode 100644 index 0000000..9c58aa76 --- /dev/null +++ b/test/MC/MachO/relax-jumps.s @@ -0,0 +1,31 @@ +// RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s + +// FIXME: This is a horrible way of checking the output, we need an llvm-mc +// based 'otool'. Use: +// (f=relax-jumps; +// llvm-mc -filetype=obj -o $f.mc.o $f.s && +// as -arch i386 -o $f.as.o $f.s && +// otool -tvr $f.mc.o | tail +2 > $f.mc.dump && +// otool -tvr $f.as.o | tail +2 > $f.as.dump && +// diff $f.{as,mc}.dump) +// to examine the results in a more sensible fashion. + +// CHECK: ('_section_data', '\x90 +// CHECK: \x0f\x842\xff\xff\xff\x0f\x82\xe6\x00\x00\x00\x0f\x87&\xff\xff\xff\x0f\x8f\xda\x00\x00\x00\x0f\x88\x1a\xff\xff\xff\x0f\x83\xce\x00\x00\x00\x0f\x89\x0e\xff\xff\xff\x90 +// CHECK: \x901\xc0') + +L1: + .space 200, 0x90 + + je L1 + jb L2 + ja L1 + jg L2 + js L1 + jae L2 + jns L1 + + .space 200, 0x90 +L2: + + xorl %eax, %eax diff --git a/test/MC/MachO/relax-recompute-align.s b/test/MC/MachO/relax-recompute-align.s new file mode 100644 index 0000000..2494025 --- /dev/null +++ b/test/MC/MachO/relax-recompute-align.s @@ -0,0 +1,37 @@ +// RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o - | macho-dump --dump-section-data | FileCheck %s + +// FIXME: This is a horrible way of checking the output, we need an llvm-mc +// based 'otool'. + +// This is a case where llvm-mc computes a better layout than Darwin 'as'. This +// issue is that after the first jmp slides, the .align size must be +// recomputed -- otherwise the second jump will appear to be out-of-range for a +// 1-byte jump. + +// CHECK: # Section 0 +// CHECK: (('section_name', '__text\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') +// CHECK: ('segment_name', '__TEXT\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') +// CHECK: ('address', 0) +// CHECK: ('size', 306) +// CHECK: ('offset', 324) +// CHECK: ('alignment', 4) +// CHECK: ('reloc_offset', 0) +// CHECK: ('num_reloc', 0) +// CHECK: ('flags', 0x80000400) +// CHECK: ('reserved1', 0) +// CHECK: ('reserved2', 0) +// CHECK: ), + +L0: + .space 0x8a, 0x90 + jmp L0 + .space (0xb3 - 0x8f), 0x90 + jle L2 + .space (0xcd - 0xb5), 0x90 + .align 4, 0x90 +L1: + .space (0x130 - 0xd0),0x90 + jl L1 +L2: + +.zerofill __DATA,__bss,_sym,4,2 |