forked from OSchip/llvm-project
76 lines
2.0 KiB
LLVM
76 lines
2.0 KiB
LLVM
|
; RUN: opt < %s -simplifycfg -S | FileCheck %s
|
||
|
|
||
|
declare void @bar()
|
||
|
|
||
|
; This testcase checks to see if the simplifycfg pass is converting invoke
|
||
|
; instructions to call instructions if the handler just rethrows the exception.
|
||
|
define i32 @test1() personality i32 (...)* @__gxx_personality_v0 {
|
||
|
; CHECK-LABEL: @test1(
|
||
|
; CHECK-NEXT: call void @bar()
|
||
|
; CHECK-NEXT: ret i32 0
|
||
|
invoke void @bar( )
|
||
|
to label %1 unwind label %Rethrow
|
||
|
ret i32 0
|
||
|
Rethrow:
|
||
|
%exn = landingpad {i8*, i32}
|
||
|
catch i8* null
|
||
|
resume { i8*, i32 } %exn
|
||
|
}
|
||
|
|
||
|
define i32 @test2() personality i32 (...)* @__gxx_personality_v0 {
|
||
|
; CHECK-LABEL: @test2(
|
||
|
; CHECK-NEXT: call void @bar() [ "foo"(i32 100) ]
|
||
|
; CHECK-NEXT: ret i32 0
|
||
|
invoke void @bar( ) [ "foo"(i32 100) ]
|
||
|
to label %1 unwind label %Rethrow
|
||
|
ret i32 0
|
||
|
Rethrow:
|
||
|
%exn = landingpad {i8*, i32}
|
||
|
catch i8* null
|
||
|
resume { i8*, i32 } %exn
|
||
|
}
|
||
|
|
||
|
declare i64 @dummy1()
|
||
|
declare i64 @dummy2()
|
||
|
|
||
|
; This testcase checks to see if simplifycfg pass can convert two invoke
|
||
|
; instructions to call instructions if they share a common trivial unwind
|
||
|
; block.
|
||
|
define i64 @test3(i1 %cond) personality i32 (...)* @__gxx_personality_v0 {
|
||
|
entry:
|
||
|
; CHECK-LABEL: @test3(
|
||
|
; CHECK: %call1 = call i64 @dummy1()
|
||
|
; CHECK: %call2 = call i64 @dummy2()
|
||
|
; CHECK-NOT: resume { i8*, i32 } %lp
|
||
|
br i1 %cond, label %br1, label %br2
|
||
|
|
||
|
br1:
|
||
|
%call1 = invoke i64 @dummy1()
|
||
|
to label %invoke.cont unwind label %lpad1
|
||
|
|
||
|
br2:
|
||
|
%call2 = invoke i64 @dummy2()
|
||
|
to label %invoke.cont unwind label %lpad2
|
||
|
|
||
|
invoke.cont:
|
||
|
%c = phi i64 [%call1, %br1], [%call2, %br2]
|
||
|
ret i64 %c
|
||
|
|
||
|
|
||
|
lpad1:
|
||
|
%0 = landingpad { i8*, i32 }
|
||
|
cleanup
|
||
|
br label %rethrow
|
||
|
|
||
|
rethrow:
|
||
|
%lp = phi { i8*, i32 } [%0, %lpad1], [%1, %lpad2]
|
||
|
resume { i8*, i32 } %lp
|
||
|
|
||
|
lpad2:
|
||
|
%1 = landingpad { i8*, i32 }
|
||
|
cleanup
|
||
|
br label %rethrow
|
||
|
}
|
||
|
|
||
|
declare i32 @__gxx_personality_v0(...)
|