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Add hook in MCSection to decide when to use "optimized nops", for each

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section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115523 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jan Wen Voung
2010-10-04 17:32:41 +00:00
parent 7a391832f4
commit 083cf1574f
13 changed files with 113 additions and 9 deletions
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45
test/MC/COFF/align-nops.s Normal file
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@@ -0,0 +1,45 @@
// RUN: llvm-mc -filetype=obj -triple i686-pc-win32 %s -o %t
// RUN: coff-dump.py %abs_tmp | FileCheck %s
// Test that we get optimal nops in text
.text
f0:
.long 0
.align 8, 0x90
.long 0
.align 8
// But not in another section
.data
.long 0
.align 8, 0x90
.long 0
.align 8
//CHECK: Name = .text
//CHECK-NEXT: VirtualSize
//CHECK-NEXT: VirtualAddress
//CHECK-NEXT: SizeOfRawData = 16
//CHECK-NEXT: PointerToRawData
//CHECK-NEXT: PointerToRelocations
//CHECK-NEXT: PointerToLineNumbers
//CHECK-NEXT: NumberOfRelocations
//CHECK-NEXT: NumberOfLineNumbers
//CHECK-NEXT: Charateristics = 0x400001
//CHECK-NEXT: IMAGE_SCN_ALIGN_8BYTES
//CHECK-NEXT: SectionData =
//CHECK-NEXT: 00 00 00 00 0F 1F 40 00 - 00 00 00 00 0F 1F 40 00
//CHECK: Name = .data
//CHECK-NEXT: VirtualSize
//CHECK-NEXT: VirtualAddress
//CHECK-NEXT: SizeOfRawData = 16
//CHECK-NEXT: PointerToRawData
//CHECK-NEXT: PointerToRelocations
//CHECK-NEXT: PointerToLineNumbers
//CHECK-NEXT: NumberOfRelocations
//CHECK-NEXT: NumberOfLineNumbers
//CHECK-NEXT: Charateristics = 0x400001
//CHECK-NEXT: IMAGE_SCN_ALIGN_8BYTES
//CHECK-NEXT: SectionData =
//CHECK-NEXT: 00 00 00 00 90 90 90 90 - 00 00 00 00 00 00 00 00

2
test/MC/COFF/dg.exp
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@@ -1,5 +1,5 @@
load_lib llvm.exp
if { [llvm_supports_target X86] } {
RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll}]]
RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,s}]]
}