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96650a3083
The comment was misplaced, and the code didn't do what the comment indicated, namely ignoring the varargs portion when computing the local stack size of a funclet in emitEpilogue. This results in incorrect offset computations within funclets that are contained in vararg functions. Differential Revision: https://reviews.llvm.org/D55096 llvm-svn: 348222
54 lines
2.0 KiB
LLVM
54 lines
2.0 KiB
LLVM
; RUN: llc -o - %s -mtriple=aarch64-windows | FileCheck %s
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; Check that the local stack size is computed correctly for a funclet contained
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; within a varargs function. The varargs component shouldn't be included in the
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; local stack size computation.
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target datalayout = "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-unknown-windows-msvc19.11.0"
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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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$"??_R0H@8" = comdat any
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@"??_7type_info@@6B@" = external constant i8*
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@"??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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; CHECK-LABEL: ?catch$2@?0??func@@YAHHHZZ@4HA
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; CHECK: stp x29, x30, [sp, #-16]!
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; CHECK: ldp x29, x30, [sp], #16
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; Function Attrs: uwtable
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define dso_local i32 @"?func@@YAHHHZZ"(i32 %a, i32, ...) local_unnamed_addr #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%arr = alloca [10 x i32], align 4
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%a2 = alloca i32, align 4
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%1 = bitcast [10 x i32]* %arr to i8*
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%arraydecay = getelementptr inbounds [10 x i32], [10 x i32]* %arr, i64 0, i64 0
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%call = call i32 @"?init@@YAHPEAH@Z"(i32* nonnull %arraydecay)
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%call1 = invoke i32 @"?func2@@YAHXZ"()
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to label %cleanup unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%2 = catchswitch within none [label %catch] unwind to caller
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catch: ; preds = %catch.dispatch
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%3 = catchpad within %2 [%rtti.TypeDescriptor2* @"??_R0H@8", i32 0, i32* %a2]
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%4 = load i32, i32* %a2, align 4
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%add = add nsw i32 %4, 1
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catchret from %3 to label %cleanup
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cleanup: ; preds = %entry, %catch
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%retval.0 = phi i32 [ %add, %catch ], [ %call1, %entry ]
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ret i32 %retval.0
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}
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declare dso_local i32 @"?init@@YAHPEAH@Z"(i32*)
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declare dso_local i32 @"?func2@@YAHXZ"()
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declare dso_local i32 @__CxxFrameHandler3(...)
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attributes #0 = { uwtable }
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"wchar_size", i32 2}
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