mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-01-14 00:32:55 +00:00
1ce3088669
This allows us to put dynamic initializers for weak data into the same comdat group as the data being initialized. This is necessary for MSVC ABI compatibility. Once we have comdats for guard variables, we can use the combination to help GlobalOpt fire more often for weak data with guarded initialization on other platforms. Reviewers: nlewycky Differential Revision: http://reviews.llvm.org/D3499 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209015 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.9 KiB
LLVM
56 lines
1.9 KiB
LLVM
; Test that global ctors are emitted into the proper COFF section for the
|
|
; target. Mingw uses .ctors, whereas MSVC uses .CRT$XC*.
|
|
; RUN: llc < %s -mtriple i686-pc-win32 | FileCheck %s --check-prefix WIN32
|
|
; RUN: llc < %s -mtriple x86_64-pc-win32 | FileCheck %s --check-prefix WIN32
|
|
; RUN: llc < %s -mtriple i686-pc-mingw32 | FileCheck %s --check-prefix MINGW32
|
|
; RUN: llc < %s -mtriple x86_64-pc-mingw32 | FileCheck %s --check-prefix MINGW32
|
|
|
|
@.str = private unnamed_addr constant [13 x i8] c"constructing\00", align 1
|
|
@.str2 = private unnamed_addr constant [12 x i8] c"destructing\00", align 1
|
|
@.str3 = private unnamed_addr constant [5 x i8] c"main\00", align 1
|
|
|
|
%ini = type { i32, void()*, i8* }
|
|
|
|
@llvm.global_ctors = appending global [2 x %ini ] [
|
|
%ini { i32 65535, void ()* @a_global_ctor, i8* null },
|
|
%ini { i32 65535, void ()* @b_global_ctor, i8* bitcast (i32* @b to i8*) }
|
|
]
|
|
@llvm.global_dtors = appending global [1 x %ini ] [%ini { i32 65535, void ()* @a_global_dtor, i8* null }]
|
|
|
|
declare i32 @puts(i8*)
|
|
|
|
define void @a_global_ctor() nounwind {
|
|
%1 = call i32 @puts(i8* getelementptr inbounds ([13 x i8]* @.str, i32 0, i32 0))
|
|
ret void
|
|
}
|
|
|
|
@b = global i32 zeroinitializer
|
|
|
|
define void @b_global_ctor() nounwind {
|
|
store i32 42, i32* @b
|
|
ret void
|
|
}
|
|
|
|
define void @a_global_dtor() nounwind {
|
|
%1 = call i32 @puts(i8* getelementptr inbounds ([12 x i8]* @.str2, i32 0, i32 0))
|
|
ret void
|
|
}
|
|
|
|
define i32 @main() nounwind {
|
|
%1 = call i32 @puts(i8* getelementptr inbounds ([5 x i8]* @.str3, i32 0, i32 0))
|
|
ret i32 0
|
|
}
|
|
|
|
; WIN32: .section .CRT$XCU,"rd"
|
|
; WIN32: a_global_ctor
|
|
; WIN32: .section .CRT$XCU,"rd",associative .bss,{{_?}}b
|
|
; WIN32: b_global_ctor
|
|
; WIN32: .section .CRT$XTX,"rd"
|
|
; WIN32: a_global_dtor
|
|
; MINGW32: .section .ctors,"wd"
|
|
; MINGW32: a_global_ctor
|
|
; MINGW32: .section .ctors,"wd",associative .bss,{{_?}}b
|
|
; MINGW32: b_global_ctor
|
|
; MINGW32: .section .dtors,"wd"
|
|
; MINGW32: a_global_dtor
|