minimal-throw-catch.ll
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; REQUIRES: system-darwin
; RUN: lli -jit-kind=orc-lazy %s
;
; Sanity test eh-frame processing and registration.
source_filename = "minimal-throw-catch.cpp"
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.14.0"
@_ZTIi = external constant i8*
declare i8* @__cxa_allocate_exception(i64)
declare void @__cxa_throw(i8*, i8*, i8*)
declare i32 @__gxx_personality_v0(...)
declare i32 @llvm.eh.typeid.for(i8*)
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
define void @explode() {
entry:
%exception = tail call i8* @__cxa_allocate_exception(i64 4)
%0 = bitcast i8* %exception to i32*
store i32 42, i32* %0, align 16
tail call void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null)
unreachable
}
define i32 @main(i32 %argc, i8** %argv) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
invoke void @explode()
to label %return unwind label %lpad
lpad:
%0 = landingpad { i8*, i32 }
catch i8* bitcast (i8** @_ZTIi to i8*)
%1 = extractvalue { i8*, i32 } %0, 1
%2 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
%matches = icmp eq i32 %1, %2
br i1 %matches, label %catch, label %eh.resume
catch:
%3 = extractvalue { i8*, i32 } %0, 0
%4 = tail call i8* @__cxa_begin_catch(i8* %3)
%5 = bitcast i8* %4 to i32*
%6 = load i32, i32* %5, align 4
%cmp = icmp ne i32 %6, 42
%cond = zext i1 %cmp to i32
tail call void @__cxa_end_catch()
br label %return
return:
%retval.0 = phi i32 [ %cond, %catch ], [ 2, %entry ]
ret i32 %retval.0
eh.resume:
resume { i8*, i32 } %0
}