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llvm-project/llvm/test/MC/X86/expand-var.s

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Fix symbol value computation when part of the expression is weak. This matches the behaviour of the gnu assembler and is part of fixing pr24486. llvm-svn: 245576
2015-08-21 00:18:30 +08:00
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux < %s | llvm-readobj -r -t | FileCheck %s
Fix fixup evaluation when deciding what to relocate with. The previous logic was to first try without relocations at all and failing that stop on the first defined symbol. That was inefficient and incorrect in the case part of the expression could be simplified and another part could not (see included test). We now stop the evaluation when we get to a variable whose value can change (i.e. is weak). llvm-svn: 233187
2015-03-25 21:16:53 +08:00
Update tests to not be as dependent on section numbers. Many of these predate llvm-readobj. With elf-dump we had to match a relocation to symbol number and symbol number to symbol name or section number. llvm-svn: 235015
2015-04-15 23:59:37 +08:00
// CHECK: Section {{.*}} .rela.text {
Fix fixup evaluation when deciding what to relocate with. The previous logic was to first try without relocations at all and failing that stop on the first defined symbol. That was inefficient and incorrect in the case part of the expression could be simplified and another part could not (see included test). We now stop the evaluation when we get to a variable whose value can change (i.e. is weak). llvm-svn: 233187
2015-03-25 21:16:53 +08:00
// CHECK-NEXT: 0x0 R_X86_64_32 d 0x0
// CHECK-NEXT: }
Fix symbol value computation when part of the expression is weak. This matches the behaviour of the gnu assembler and is part of fixing pr24486. llvm-svn: 245576
2015-08-21 00:18:30 +08:00
// CHECK: Symbol {
// CHECK: Name: d2
// CHECK-NEXT: Value: 0x2A
Fix fixup evaluation when deciding what to relocate with. The previous logic was to first try without relocations at all and failing that stop on the first defined symbol. That was inefficient and incorrect in the case part of the expression could be simplified and another part could not (see included test). We now stop the evaluation when we get to a variable whose value can change (i.e. is weak). llvm-svn: 233187
2015-03-25 21:16:53 +08:00
a:
b = a
c = a
d = a
.weak d
.long d + (b - c)
Fix PR23025. There is something in link.exe that requires a relocation to use a global symbol. Not doing so breaks the chrome build on windows. This patch sets isWeak for that to work. To compensate, we then need to look past those symbols when not creating relocations. This patch includes an ELF test that matches GNU as behaviour. I am still reducing the chrome build issue and will add a test once that is done. llvm-svn: 233318
2015-03-27 05:11:00 +08:00
a2:
.weak b2
b2 = a2
c2 = b2 - a2
Fix symbol value computation when part of the expression is weak. This matches the behaviour of the gnu assembler and is part of fixing pr24486. llvm-svn: 245576
2015-08-21 00:18:30 +08:00
d2 = b2 - a2 + 42