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libstdc++ fails to build on darwin/x86-64 #2031

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lattner opened this issue Sep 15, 2007 · 2 comments
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libstdc++ fails to build on darwin/x86-64 #2031

lattner opened this issue Sep 15, 2007 · 2 comments
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@isanbard
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backend:X86 bugzilla Issues migrated from bugzilla compile-fail Use [accepts-invalid] and [rejects-valid] instead

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@lattner
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lattner commented Sep 15, 2007

Bugzilla Link 1659
Resolution FIXED
Resolved on Sep 16, 2007 14:37
Version 1.0
OS All
CC @asl,@isanbard

Extended Description

libstdc++ fails to build on darwin/x86-64. This isn't suggested, but it should still at least build :). The failure is:

eh_alloc.s:183:unknown section type: non_lazy_symbol_pointerseh_alloc.s:183:Rest of line ignored. 1st junk character valued 76 (L).
eh_alloc.s:184:Unknown pseudo-op: .indirect_symboleh_alloc.s:184:Rest of line ignored. 1st junk character valued 95 (_).

The generated code in question is:

.section __IMPORT,__pointers,non_lazy_symbol_pointers
L___gxx_personality_v0$non_lazy_ptr:
.indirect_symbol ___gxx_personality_v0
.long 0
.subsections_via_symbols

Bill, can you take a look at this?

-Chris
@lattner
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lattner commented Sep 15, 2007

assigned to @isanbard

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The code that emits the personality stub was doing so even if the target didn't support exceptions. This was a massive think-o in my exception handling patches for Darwin. Fixed:

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070910/053555.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070910/053564.html

-bw

@llvmbot llvmbot transferred this issue from llvm/llvm-bugzilla-archive Dec 3, 2021
vfdff added a commit to vfdff/llvm-project that referenced this issue Dec 5, 2023
@vfdff
[CGP][AArch64] Rebase the common base offset for better ISel
d6f4d52 
When all the large const offsets masked with the same value from bit-12 to bit-23.
Fold
  add     x8, x0, llvm#2031, lsl llvm#12
  add     x8, x8, llvm#960
  ldr     x9, [x8, x8]
  ldr     x8, [x8, llvm#2056]

into
  add     x8, x0, llvm#2031, lsl llvm#12
  ldr     x9, [x8, llvm#960]
  ldr     x8, [x8, llvm#3016]
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backend:X86 bugzilla Issues migrated from bugzilla compile-fail Use [accepts-invalid] and [rejects-valid] instead
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