derek.holloway
7502bf64a4
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103 lines
3.3 KiB
LLVM
103 lines
3.3 KiB
LLVM
; RUN: llc -function-sections -mtriple=x86_64-windows-itanium < %s | FileCheck %s
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; RUN: llc -function-sections -mtriple=x86_64-windows-msvc < %s | FileCheck %s
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; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU
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; RUN: llc -function-sections -mtriple=x86_64-pc-cygwin < %s | FileCheck %s --check-prefix=GNU
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; RUN: llc -function-sections -mtriple=i686-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU32
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; RUN: llc -function-sections -mtriple=i686-pc-cygwin < %s | FileCheck %s --check-prefix=GNU32
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; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s -filetype=obj | llvm-objdump - --headers | FileCheck %s --check-prefix=GNUOBJ
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; RUN: llc -function-sections -mtriple=x86_64-pc-cygwin < %s -filetype=obj | llvm-objdump - --headers | FileCheck %s --check-prefix=GNUOBJ
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; GCC and MSVC handle comdats completely differently. Make sure we do the right
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; thing for each.
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; Modeled on this C++ source, with additional modifications for
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; -ffunction-sections:
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; int bar(int);
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; __declspec(selectany) int gv = 42;
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; inline int foo(int x) { return bar(x) + gv; }
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; int main() { return foo(1); }
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$_Z3fooi = comdat any
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$gv = comdat any
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@gv = weak_odr dso_local global i32 42, comdat, align 4
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; Function Attrs: norecurse uwtable
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define dso_local i32 @main() #0 {
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entry:
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%call = tail call i32 @_Z3fooi(i32 1)
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ret i32 %call
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}
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; CHECK: .section .text,"xr",one_only,main,unique,0
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; CHECK: main:
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; GNU: .section .text$main,"xr",one_only,main,unique,0
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; GNU: main:
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; GNU32: .section .text$main,"xr",one_only,_main,unique,0
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; GNU32: _main:
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define dso_local x86_fastcallcc i32 @fastcall(i32 %x, i32 %y) {
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%rv = add i32 %x, %y
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ret i32 %rv
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}
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; CHECK: .section .text,"xr",one_only,fastcall,unique,1
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; CHECK: fastcall:
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; GNU: .section .text$fastcall,"xr",one_only,fastcall,unique,1
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; GNU: fastcall:
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; GNU32: .section .text$fastcall,"xr",one_only,@fastcall@8,unique,1
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; GNU32: @fastcall@8:
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; Function Attrs: inlinehint uwtable
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define linkonce_odr dso_local i32 @_Z3fooi(i32 %x) #1 comdat {
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entry:
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%call = tail call i32 @_Z3bari(i32 %x)
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%0 = load i32, ptr @gv, align 4
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%add = add nsw i32 %0, %call
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ret i32 %add
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}
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; CHECK: .section .text,"xr",discard,_Z3fooi,unique,2
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; CHECK: _Z3fooi:
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; CHECK: .section .data,"dw",discard,gv
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; CHECK: gv:
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; CHECK: .long 42
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; GNU: .section .text$_Z3fooi,"xr",discard,_Z3fooi,unique,2
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; GNU: _Z3fooi:
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; GNU: .section .data$gv,"dw",discard,gv
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; GNU: gv:
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; GNU: .long 42
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; GNU32: .section .text$_Z3fooi,"xr",discard,__Z3fooi,unique,2
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; GNU32: __Z3fooi:
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; GNU32: .section .data$gv,"dw",discard,_gv
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; GNU32: _gv:
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; GNU32: .long 42
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define linkonce_odr dso_local i32 @_Z3fooj(i32 %x) !section_prefix !0 {
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entry:
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%call = tail call i32 @_Z3bari(i32 %x)
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%0 = load i32, ptr @gv, align 4
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%add = add nsw i32 %0, %call
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ret i32 %add
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}
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; Make sure the assembler puts the .xdata and .pdata in sections with the right
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; names.
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; GNUOBJ: .text$_Z3fooi
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; GNUOBJ: .xdata$_Z3fooi
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; GNUOBJ: .text$unlikely$_Z3fooj
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; GNUOBJ: .xdata$unlikely$_Z3fooj
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; GNUOBJ: .data$gv
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; GNUOBJ: .pdata$_Z3fooi
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; GNUOBJ: .pdata$unlikely$_Z3fooj
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declare dso_local i32 @_Z3bari(i32)
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attributes #0 = { norecurse uwtable }
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attributes #1 = { inlinehint uwtable }
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!0 = !{!"function_section_prefix", !"unlikely"}
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