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llvm-mirror/test/CodeGen/ARM/stubs.ll

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fix an arm codegen bug (the same as PR4482 on ppc) where available_externally symbols were not getting stubs. While I'm at it, add a big testcase for stub generation to make sure I don't break anything. llvm-svn: 75737
2009-07-15 06:12:33 +02:00
; RUN: llvm-as < %s | llc -relocation-model=static | FileCheck %s -check-prefix=STATIC
; RUN: llvm-as < %s | llc -relocation-model=pic | FileCheck %s -check-prefix=PIC
; RUN: llvm-as < %s | llc -relocation-model=dynamic-no-pic | FileCheck %s -check-prefix=DYNAMIC
; PR4482
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "armv6-apple-darwin2"
define i32 @foo(i64 %x) nounwind {
entry:
; STATIC: _foo:
; STATIC: bl _exact_log2
; STATIC: ldmfd sp!, {r7, pc}
; STATIC: .subsections_via_symbols
; PIC: _foo:
; PIC: bl L_exact_log2$stub
; PIC: ldmfd sp!, {r7, pc}
; DYNAMIC: _foo:
; DYNAMIC: bl L_exact_log2$stub
; DYNAMIC: ldmfd sp!, {r7, pc}
%A = call i32 @exact_log2(i64 %x)
ret i32 %A
}
define available_externally i32 @exact_log2(i64 %x) nounwind {
ret i32 4
}
; PIC: .section __TEXT,__picsymbolstub4,symbol_stubs,none,16
; PIC: L_exact_log2$stub:
; PIC: .indirect_symbol _exact_log2
; PIC: ldr ip, L_exact_log2$slp
; PIC: L_exact_log2$scv:
; PIC: add ip, pc, ip
; PIC: ldr pc, [ip, #0]
; PIC: L_exact_log2$slp:
; PIC: .long L_exact_log2$lazy_ptr-(L_exact_log2$scv+8)
Make the big switch: Change MCSectionMachO to represent a section *semantically* instead of syntactically as a string. This means that it keeps track of the segment, section, flags, etc directly and asmprints them in the right format. This also includes parsing and validation support for llvm-mc and "attribute(section)", so we should now start getting errors about invalid section attributes from the compiler instead of the assembler on darwin. Still todo: 1) Uniquing of darwin mcsections 2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h] 3) there are a few FIXMEs, for example what is the syntax to get the S_GB_ZEROFILL segment type? llvm-svn: 78547
2009-08-10 03:39:42 +02:00
; PIC: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
fix an arm codegen bug (the same as PR4482 on ppc) where available_externally symbols were not getting stubs. While I'm at it, add a big testcase for stub generation to make sure I don't break anything. llvm-svn: 75737
2009-07-15 06:12:33 +02:00
; PIC: L_exact_log2$lazy_ptr:
; PIC: .indirect_symbol _exact_log2
; PIC: .long dyld_stub_binding_helper
; PIC: .subsections_via_symbols
; DYNAMIC: .section __TEXT,__symbol_stub4,symbol_stubs,none,12
; DYNAMIC: L_exact_log2$stub:
; DYNAMIC: .indirect_symbol _exact_log2
; DYNAMIC: ldr ip, L_exact_log2$slp
; DYNAMIC: ldr pc, [ip, #0]
; DYNAMIC: L_exact_log2$slp:
; DYNAMIC: .long L_exact_log2$lazy_ptr
Make the big switch: Change MCSectionMachO to represent a section *semantically* instead of syntactically as a string. This means that it keeps track of the segment, section, flags, etc directly and asmprints them in the right format. This also includes parsing and validation support for llvm-mc and "attribute(section)", so we should now start getting errors about invalid section attributes from the compiler instead of the assembler on darwin. Still todo: 1) Uniquing of darwin mcsections 2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h] 3) there are a few FIXMEs, for example what is the syntax to get the S_GB_ZEROFILL segment type? llvm-svn: 78547
2009-08-10 03:39:42 +02:00
; DYNAMIC: .section __DATA,__la_symbol_ptr,lazy_symbol_pointers
fix an arm codegen bug (the same as PR4482 on ppc) where available_externally symbols were not getting stubs. While I'm at it, add a big testcase for stub generation to make sure I don't break anything. llvm-svn: 75737
2009-07-15 06:12:33 +02:00
; DYNAMIC: L_exact_log2$lazy_ptr:
; DYNAMIC: .indirect_symbol _exact_log2
; DYNAMIC: .long dyld_stub_binding_helper
; DYNAMIC: .subsections_via_symbols
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