1; RUN: llc -function-sections -mtriple=x86_64-windows-itanium < %s | FileCheck %s 2; RUN: llc -function-sections -mtriple=x86_64-windows-msvc < %s | FileCheck %s 3; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU 4; RUN: llc -function-sections -mtriple=i686-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU32 5; RUN: llc -function-sections -mtriple=x86_64-w64-windows-gnu < %s -filetype=obj | llvm-objdump - --headers | FileCheck %s --check-prefix=GNUOBJ 6 7; GCC and MSVC handle comdats completely differently. Make sure we do the right 8; thing for each. 9 10; Modeled on this C++ source, with additional modifications for 11; -ffunction-sections: 12; int bar(int); 13; __declspec(selectany) int gv = 42; 14; inline int foo(int x) { return bar(x) + gv; } 15; int main() { return foo(1); } 16 17$_Z3fooi = comdat any 18 19$gv = comdat any 20 21@gv = weak_odr dso_local global i32 42, comdat, align 4 22 23; Function Attrs: norecurse uwtable 24define dso_local i32 @main() #0 { 25entry: 26 %call = tail call i32 @_Z3fooi(i32 1) 27 ret i32 %call 28} 29 30; CHECK: .section .text,"xr",one_only,main 31; CHECK: main: 32; GNU: .section .text$main,"xr",one_only,main 33; GNU: main: 34; GNU32: .section .text$main,"xr",one_only,_main 35; GNU32: _main: 36 37define dso_local x86_fastcallcc i32 @fastcall(i32 %x, i32 %y) { 38 %rv = add i32 %x, %y 39 ret i32 %rv 40} 41 42; CHECK: .section .text,"xr",one_only,fastcall 43; CHECK: fastcall: 44; GNU: .section .text$fastcall,"xr",one_only,fastcall 45; GNU: fastcall: 46; GNU32: .section .text$fastcall,"xr",one_only,@fastcall@8 47; GNU32: @fastcall@8: 48 49; Function Attrs: inlinehint uwtable 50define linkonce_odr dso_local i32 @_Z3fooi(i32 %x) #1 comdat { 51entry: 52 %call = tail call i32 @_Z3bari(i32 %x) 53 %0 = load i32, i32* @gv, align 4 54 %add = add nsw i32 %0, %call 55 ret i32 %add 56} 57 58; CHECK: .section .text,"xr",discard,_Z3fooi 59; CHECK: _Z3fooi: 60; CHECK: .section .data,"dw",discard,gv 61; CHECK: gv: 62; CHECK: .long 42 63 64; GNU: .section .text$_Z3fooi,"xr",discard,_Z3fooi 65; GNU: _Z3fooi: 66; GNU: .section .data$gv,"dw",discard,gv 67; GNU: gv: 68; GNU: .long 42 69 70; GNU32: .section .text$_Z3fooi,"xr",discard,__Z3fooi 71; GNU32: __Z3fooi: 72; GNU32: .section .data$gv,"dw",discard,_gv 73; GNU32: _gv: 74; GNU32: .long 42 75 76 77define linkonce_odr dso_local i32 @_Z3fooj(i32 %x) !section_prefix !0 { 78entry: 79 %call = tail call i32 @_Z3bari(i32 %x) 80 %0 = load i32, i32* @gv, align 4 81 %add = add nsw i32 %0, %call 82 ret i32 %add 83} 84 85; Make sure the assembler puts the .xdata and .pdata in sections with the right 86; names. 87; GNUOBJ: .text$_Z3fooi 88; GNUOBJ: .xdata$_Z3fooi 89; GNUOBJ: .text$unlikely$_Z3fooj 90; GNUOBJ: .xdata$unlikely$_Z3fooj 91; GNUOBJ: .data$gv 92; GNUOBJ: .pdata$_Z3fooi 93; GNUOBJ: .pdata$unlikely$_Z3fooj 94 95declare dso_local i32 @_Z3bari(i32) 96 97attributes #0 = { norecurse uwtable } 98attributes #1 = { inlinehint uwtable } 99!0 = !{!"function_section_prefix", !"unlikely"} 100