96 lines
2.0 KiB
LLVM
96 lines
2.0 KiB
LLVM
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; RUN: opt < %s -function-attrs -S | FileCheck %s
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; TEST 1
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; CHECK: Function Attrs: norecurse nounwind readnone
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; CHECK-NEXT: define i32 @foo1()
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define i32 @foo1() {
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ret i32 1
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}
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; TEST 2
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; CHECK: Function Attrs: nounwind readnone
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; CHECK-NEXT: define i32 @scc1_foo()
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define i32 @scc1_foo() {
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%1 = call i32 @scc1_bar()
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ret i32 1
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}
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; TEST 3
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; CHECK: Function Attrs: nounwind readnone
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; CHECK-NEXT: define i32 @scc1_bar()
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define i32 @scc1_bar() {
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%1 = call i32 @scc1_foo()
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ret i32 1
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}
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; CHECK: declare i32 @non_nounwind()
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declare i32 @non_nounwind()
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; TEST 4
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; CHECK: define void @call_non_nounwind() {
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define void @call_non_nounwind(){
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tail call i32 @non_nounwind()
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ret void
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}
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; TEST 5 - throw
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; int maybe_throw(bool canThrow) {
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; if (canThrow)
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; throw;
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; else
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; return -1;
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; }
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; CHECK: define i32 @maybe_throw(i1 zeroext %0)
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define i32 @maybe_throw(i1 zeroext %0) {
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br i1 %0, label %2, label %3
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2: ; preds = %1
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tail call void @__cxa_rethrow() #1
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unreachable
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3: ; preds = %1
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ret i32 -1
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}
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declare void @__cxa_rethrow()
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; TEST 6 - catch
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; int catch_thing() {
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; try {
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; int a = doThing(true);
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; }
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; catch(...) { return -1; }
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; return 1;
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; }
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; CHECK: define i32 @catch_thing()
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define i32 @catch_thing() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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invoke void @__cxa_rethrow() #1
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to label %1 unwind label %2
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1: ; preds = %0
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unreachable
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2: ; preds = %0
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%3 = landingpad { i8*, i32 }
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catch i8* null
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%4 = extractvalue { i8*, i32 } %3, 0
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%5 = tail call i8* @__cxa_begin_catch(i8* %4) #2
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tail call void @__cxa_end_catch()
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ret i32 -1
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}
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define i32 @catch_thing_user() {
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%catch_thing_call = call i32 @catch_thing()
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ret i32 %catch_thing_call
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}
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declare i32 @__gxx_personality_v0(...)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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