100 lines
2.9 KiB
LLVM
100 lines
2.9 KiB
LLVM
; RUN: llc -function-sections -mtriple=x86_64-windows-itanium < %s | FileCheck %s
|
|
; RUN: llc -function-sections -mtriple=x86_64-windows-msvc < %s | FileCheck %s
|
|
; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU
|
|
; RUN: llc -function-sections -mtriple=i686-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU32
|
|
; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s -filetype=obj | llvm-objdump - --headers | FileCheck %s --check-prefix=GNUOBJ
|
|
|
|
; GCC and MSVC handle comdats completely differently. Make sure we do the right
|
|
; thing for each.
|
|
|
|
; Modeled on this C++ source, with additional modifications for
|
|
; -ffunction-sections:
|
|
; int bar(int);
|
|
; __declspec(selectany) int gv = 42;
|
|
; inline int foo(int x) { return bar(x) + gv; }
|
|
; int main() { return foo(1); }
|
|
|
|
$_Z3fooi = comdat any
|
|
|
|
$gv = comdat any
|
|
|
|
@gv = weak_odr dso_local global i32 42, comdat, align 4
|
|
|
|
; Function Attrs: norecurse uwtable
|
|
define dso_local i32 @main() #0 {
|
|
entry:
|
|
%call = tail call i32 @_Z3fooi(i32 1)
|
|
ret i32 %call
|
|
}
|
|
|
|
; CHECK: .section .text,"xr",one_only,main
|
|
; CHECK: main:
|
|
; GNU: .section .text$main,"xr",one_only,main
|
|
; GNU: main:
|
|
; GNU32: .section .text$main,"xr",one_only,_main
|
|
; GNU32: _main:
|
|
|
|
define dso_local x86_fastcallcc i32 @fastcall(i32 %x, i32 %y) {
|
|
%rv = add i32 %x, %y
|
|
ret i32 %rv
|
|
}
|
|
|
|
; CHECK: .section .text,"xr",one_only,fastcall
|
|
; CHECK: fastcall:
|
|
; GNU: .section .text$fastcall,"xr",one_only,fastcall
|
|
; GNU: fastcall:
|
|
; GNU32: .section .text$fastcall,"xr",one_only,@fastcall@8
|
|
; GNU32: @fastcall@8:
|
|
|
|
; Function Attrs: inlinehint uwtable
|
|
define linkonce_odr dso_local i32 @_Z3fooi(i32 %x) #1 comdat {
|
|
entry:
|
|
%call = tail call i32 @_Z3bari(i32 %x)
|
|
%0 = load i32, i32* @gv, align 4
|
|
%add = add nsw i32 %0, %call
|
|
ret i32 %add
|
|
}
|
|
|
|
; CHECK: .section .text,"xr",discard,_Z3fooi
|
|
; CHECK: _Z3fooi:
|
|
; CHECK: .section .data,"dw",discard,gv
|
|
; CHECK: gv:
|
|
; CHECK: .long 42
|
|
|
|
; GNU: .section .text$_Z3fooi,"xr",discard,_Z3fooi
|
|
; GNU: _Z3fooi:
|
|
; GNU: .section .data$gv,"dw",discard,gv
|
|
; GNU: gv:
|
|
; GNU: .long 42
|
|
|
|
; GNU32: .section .text$_Z3fooi,"xr",discard,__Z3fooi
|
|
; GNU32: __Z3fooi:
|
|
; GNU32: .section .data$gv,"dw",discard,_gv
|
|
; GNU32: _gv:
|
|
; GNU32: .long 42
|
|
|
|
|
|
define linkonce_odr dso_local i32 @_Z3fooj(i32 %x) !section_prefix !0 {
|
|
entry:
|
|
%call = tail call i32 @_Z3bari(i32 %x)
|
|
%0 = load i32, i32* @gv, align 4
|
|
%add = add nsw i32 %0, %call
|
|
ret i32 %add
|
|
}
|
|
|
|
; Make sure the assembler puts the .xdata and .pdata in sections with the right
|
|
; names.
|
|
; GNUOBJ: .text$_Z3fooi
|
|
; GNUOBJ: .xdata$_Z3fooi
|
|
; GNUOBJ: .text$unlikely$_Z3fooj
|
|
; GNUOBJ: .xdata$unlikely$_Z3fooj
|
|
; GNUOBJ: .data$gv
|
|
; GNUOBJ: .pdata$_Z3fooi
|
|
; GNUOBJ: .pdata$unlikely$_Z3fooj
|
|
|
|
declare dso_local i32 @_Z3bari(i32)
|
|
|
|
attributes #0 = { norecurse uwtable }
|
|
attributes #1 = { inlinehint uwtable }
|
|
!0 = !{!"function_section_prefix", !"unlikely"}
|