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https://github.com/c64scene-ar/llvm-6502.git
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7dedaabcae
Instead, run both EH preparation passes, and have them both ignore functions with unrecognized EH personalities. Pass delegation involved some hacky code for creating an AnalysisResolver that we don't need now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231995 91177308-0d34-0410-b5e6-96231b3b80d8
81 lines
2.0 KiB
LLVM
81 lines
2.0 KiB
LLVM
; RUN: opt -S -winehprepare -dwarfehprepare -mtriple x86_64-pc-windows-msvc < %s | FileCheck %s
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; FIXME: Add and test outlining here.
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declare void @maybe_throw()
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@_ZTIi = external constant i8*
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@g = external global i32
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declare i32 @__C_specific_handler(...)
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declare i32 @__gxx_personality_seh0(...)
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declare i32 @llvm.eh.typeid.for(i8*) readnone nounwind
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define i32 @use_seh() {
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entry:
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invoke void @maybe_throw()
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to label %cont unwind label %lpad
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cont:
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ret i32 0
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lpad:
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%ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler
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cleanup
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catch i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*)
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%ehsel = extractvalue { i8*, i32 } %ehvals, 1
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%filt_g_sel = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*))
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%matches = icmp eq i32 %ehsel, %filt_g_sel
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br i1 %matches, label %ret1, label %eh.resume
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ret1:
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ret i32 1
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eh.resume:
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resume { i8*, i32 } %ehvals
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}
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define internal i32 @filt_g(i8*, i8*) {
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%g = load i32, i32* @g
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ret i32 %g
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}
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; CHECK-LABEL: define i32 @use_seh()
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; CHECK: invoke void @maybe_throw()
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; CHECK-NEXT: to label %cont unwind label %lpad
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; CHECK: eh.resume:
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; CHECK-NEXT: unreachable
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; A MinGW64-ish EH style. It could happen if a binary uses both MSVC CRT and
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; mingw CRT and is linked with LTO.
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define i32 @use_gcc() {
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entry:
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invoke void @maybe_throw()
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to label %cont unwind label %lpad
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cont:
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ret i32 0
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lpad:
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%ehvals = landingpad { i8*, i32 } personality i32 (...)* @__gxx_personality_seh0
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cleanup
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%ehsel = extractvalue { i8*, i32 } %ehvals, 1
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%filt_g_sel = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*))
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%matches = icmp eq i32 %ehsel, %filt_g_sel
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br i1 %matches, label %ret1, label %eh.resume
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ret1:
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ret i32 1
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eh.resume:
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resume { i8*, i32 } %ehvals
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}
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; CHECK-LABEL: define i32 @use_gcc()
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; CHECK: invoke void @maybe_throw()
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; CHECK-NEXT: to label %cont unwind label %lpad
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; CHECK: eh.resume:
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; CHECK: call void @_Unwind_Resume(i8* %exn.obj)
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