82 lines
2.5 KiB
LLVM
82 lines
2.5 KiB
LLVM
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; RUN: llc -mtriple=x86_64-w64-windows-gnu < %s | FileCheck %s --check-prefix=GNU
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; RUN: llc -mtriple=x86_64-w64-windows-gnu < %s -filetype=obj | llvm-objdump - --headers | FileCheck %s --check-prefix=GNUOBJ
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; When doing GCC style comdats for MinGW, the .xdata sections don't have a normal comdat
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; symbol attached, which requires a bit of adjustments for the assembler output.
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; Generated with this C++ source:
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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) { try { return bar(x) + gv; } catch (...) { return 0; } }
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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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; GNU: main:
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; Function Attrs: inlinehint uwtable
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define linkonce_odr dso_local i32 @_Z3fooi(i32 %x) #1 comdat personality i8* bitcast (i32 (...)* @__gxx_personality_seh0 to i8*) {
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entry:
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%call = invoke i32 @_Z3bari(i32 %x)
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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%0 = load i32, i32* @gv, align 4
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%add = add nsw i32 %0, %call
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br label %return
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lpad: ; preds = %entry
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%1 = landingpad { i8*, i32 }
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catch i8* null
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%2 = extractvalue { i8*, i32 } %1, 0
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%3 = tail call i8* @__cxa_begin_catch(i8* %2) #3
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tail call void @__cxa_end_catch()
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br label %return
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return: ; preds = %lpad, %invoke.cont
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%retval.0 = phi i32 [ %add, %invoke.cont ], [ 0, %lpad ]
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ret i32 %retval.0
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}
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; The .xdata section below doesn't have the usual comdat symbol attached, which requires
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; a different syntax for the assembly output.
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; GNU: .section .text$_Z3fooi,"xr",discard,_Z3fooi
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; GNU: _Z3fooi:
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; GNU: .section .xdata$_Z3fooi,"dr"
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; GNU: .linkonce discard
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; GNU: GCC_except_table1:
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; GNU: .section .data$gv,"dw",discard,gv
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; GNU: gv:
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; GNU: .long 42
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; Make sure the assembler puts the .xdata and .pdata in sections with the right
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; names.
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; GNUOBJ: .text$_Z3fooi
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; GNUOBJ: .xdata$_Z3fooi
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; GNUOBJ: .data$gv
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; GNUOBJ: .pdata$_Z3fooi
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declare dso_local i32 @_Z3bari(i32)
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declare dso_local i32 @__gxx_personality_seh0(...)
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declare dso_local i8* @__cxa_begin_catch(i8*) local_unnamed_addr
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declare dso_local void @__cxa_end_catch() local_unnamed_addr
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attributes #0 = { norecurse uwtable }
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attributes #1 = { inlinehint uwtable }
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attributes #3 = { nounwind }
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