mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
90b554b54f
In r256814, we managed to remove catchpads which were trivially redudant because they were the same SSA value. We can do better using the same algorithm but with a smarter datastructure by hashing the SSA values within the catchpad and comparing them structurally. llvm-svn: 256815
168 lines
4.4 KiB
LLVM
168 lines
4.4 KiB
LLVM
; RUN: opt -S -simplifycfg < %s | FileCheck %s
|
|
|
|
declare void @Personality()
|
|
declare void @f()
|
|
|
|
; CHECK-LABEL: define void @test1()
|
|
define void @test1() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
; CHECK: call void @f()
|
|
invoke void @f()
|
|
to label %exit unwind label %unreachable.unwind
|
|
exit:
|
|
ret void
|
|
unreachable.unwind:
|
|
cleanuppad within none []
|
|
unreachable
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test2()
|
|
define void @test2() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %catch.pad
|
|
catch.pad:
|
|
%cs1 = catchswitch within none [label %catch.body] unwind label %unreachable.unwind
|
|
; CHECK: catch.pad:
|
|
; CHECK-NEXT: catchswitch within none [label %catch.body] unwind to caller
|
|
catch.body:
|
|
; CHECK: catch.body:
|
|
; CHECK-NEXT: catchpad within %cs1
|
|
; CHECK-NEXT: call void @f()
|
|
; CHECK-NEXT: unreachable
|
|
%catch = catchpad within %cs1 []
|
|
call void @f()
|
|
catchret from %catch to label %unreachable
|
|
exit:
|
|
ret void
|
|
unreachable.unwind:
|
|
cleanuppad within none []
|
|
unreachable
|
|
unreachable:
|
|
unreachable
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test3()
|
|
define void @test3() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %cleanup.pad
|
|
cleanup.pad:
|
|
; CHECK: %cleanup = cleanuppad within none []
|
|
; CHECK-NEXT: call void @f()
|
|
; CHECK-NEXT: unreachable
|
|
%cleanup = cleanuppad within none []
|
|
invoke void @f()
|
|
to label %cleanup.ret unwind label %unreachable.unwind
|
|
cleanup.ret:
|
|
; This cleanupret should be rewritten to unreachable,
|
|
; and merged into the pred block.
|
|
cleanupret from %cleanup unwind label %unreachable.unwind
|
|
exit:
|
|
ret void
|
|
unreachable.unwind:
|
|
cleanuppad within none []
|
|
unreachable
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test5()
|
|
define void @test5() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %catch.pad
|
|
|
|
catch.pad:
|
|
%cs1 = catchswitch within none [label %catch.body] unwind to caller
|
|
|
|
catch.body:
|
|
%catch = catchpad within %cs1 []
|
|
catchret from %catch to label %exit
|
|
|
|
exit:
|
|
unreachable
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test6()
|
|
define void @test6() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %catch.pad
|
|
|
|
catch.pad:
|
|
%cs1 = catchswitch within none [label %catch.body, label %catch.body] unwind to caller
|
|
; CHECK: catchswitch within none [label %catch.body] unwind to caller
|
|
|
|
catch.body:
|
|
%catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
|
|
catchret from %catch to label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test7()
|
|
define void @test7() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %catch.pad
|
|
|
|
catch.pad:
|
|
%cs1 = catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
|
|
; CHECK: catchswitch within none [label %catch.body] unwind to caller
|
|
|
|
catch.body:
|
|
%catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
|
|
catchret from %catch to label %exit
|
|
|
|
catch.body2:
|
|
%catch2 = catchpad within %cs1 [i8* null, i32 0, i8* null]
|
|
catchret from %catch2 to label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test8()
|
|
define void @test8() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %catch.pad
|
|
|
|
catch.pad:
|
|
%cs1 = catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
|
|
; CHECK: catchswitch within none [label %catch.body] unwind to caller
|
|
|
|
catch.body2:
|
|
%catch2 = catchpad within %cs1 [i8* null, i32 0, i8* null]
|
|
catchret from %catch2 to label %exit
|
|
|
|
catch.body:
|
|
%catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
|
|
catchret from %catch to label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: define void @test9()
|
|
define void @test9() personality i8* bitcast (void ()* @Personality to i8*) {
|
|
entry:
|
|
invoke void @f()
|
|
to label %exit unwind label %catch.pad
|
|
|
|
catch.pad:
|
|
%cs1 = catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
|
|
; CHECK: catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
|
|
|
|
catch.body:
|
|
%catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
|
|
catchret from %catch to label %exit
|
|
|
|
catch.body2:
|
|
%catch2 = catchpad within %cs1 [i8* null, i32 64, i8* null]
|
|
catchret from %catch2 to label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|