-; RUN: opt -mtriple=x86_x64-pc-windows-msvc -S -winehprepare < %s | FileCheck %s
+; RUN: opt -mtriple=x86_64-pc-windows-msvc -S -winehprepare < %s | FileCheck %s
declare i32 @__CxxFrameHandler3(...)
+declare i32 @__C_specific_handler(...)
+declare void @ProcessCLRException(...)
declare void @f()
-declare i32 @g()
-declare void @h(i32)
-declare i1 @b()
+declare void @llvm.foo(i32) nounwind
+declare void @llvm.bar() nounwind
+declare i32 @llvm.qux() nounwind
+declare i1 @llvm.baz() nounwind
define void @test1() personality i32 (...)* @__CxxFrameHandler3 {
entry:
; %x def colors: {entry} subset of use colors; must spill
- %x = call i32 @g()
+ %x = call i32 @llvm.qux()
invoke void @f()
- to label %noreturn unwind label %catch
+ to label %noreturn unwind label %catch.switch
+catch.switch:
+ %cs = catchswitch within none [label %catch] unwind to caller
catch:
- catchpad []
- to label %noreturn unwind label %endcatch
+ %cp = catchpad within %cs []
+ br label %noreturn
noreturn:
; %x use colors: {entry, cleanup}
- call void @h(i32 %x)
+ call void @llvm.foo(i32 %x)
unreachable
-endcatch:
- catchendpad unwind to caller
}
; Need two copies of the call to @h, one under entry and one under catch.
; Currently we generate a load for each, though we shouldn't need one
; for the use in entry's copy.
; CHECK-LABEL: define void @test1(
; CHECK: entry:
-; CHECK: store i32 %x, i32* [[Slot:%[^ ]+]]
+; CHECK: %x = call i32 @llvm.qux()
; CHECK: invoke void @f()
; CHECK: to label %[[EntryCopy:[^ ]+]] unwind label %catch
+; CHECK: catch.switch:
+; CHECK: %cs = catchswitch within none [label %catch] unwind to caller
; CHECK: catch:
-; CHECK: catchpad []
-; CHECK-NEXT: to label %[[CatchCopy:[^ ]+]] unwind
-; CHECK: [[CatchCopy]]:
-; CHECK: [[LoadX2:%[^ ]+]] = load i32, i32* [[Slot]]
-; CHECK: call void @h(i32 [[LoadX2]]
+; CHECK: catchpad within %cs []
+; CHECK-NEXT: call void @llvm.foo(i32 %x)
; CHECK: [[EntryCopy]]:
-; CHECK: [[LoadX1:%[^ ]+]] = load i32, i32* [[Slot]]
-; CHECK: call void @h(i32 [[LoadX1]]
+; CHECK: call void @llvm.foo(i32 %x)
define void @test2() personality i32 (...)* @__CxxFrameHandler3 {
invoke void @f()
to label %exit unwind label %cleanup
cleanup:
- cleanuppad []
+ cleanuppad within none []
br label %exit
exit:
- call void @f()
+ call void @llvm.bar()
ret void
}
; Need two copies of %exit's call to @f -- the subsequent ret is only
; CHECK: invoke void @f()
; CHECK: to label %[[exit:[^ ]+]] unwind label %cleanup
; CHECK: cleanup:
-; CHECK: cleanuppad []
-; CHECK: call void @f()
+; CHECK: cleanuppad within none []
+; CHECK: call void @llvm.bar()
; CHECK-NEXT: unreachable
; CHECK: [[exit]]:
-; CHECK: call void @f()
+; CHECK: call void @llvm.bar()
; CHECK-NEXT: ret void
define void @test3() personality i32 (...)* @__CxxFrameHandler3 {
entry:
invoke void @f()
- to label %invoke.cont unwind label %catch
+ to label %invoke.cont unwind label %catch.switch
invoke.cont:
invoke void @f()
to label %exit unwind label %cleanup
+catch.switch:
+ %cs = catchswitch within none [label %catch] unwind to caller
catch:
- catchpad [] to label %shared unwind label %endcatch
-endcatch:
- catchendpad unwind to caller
+ catchpad within %cs []
+ br label %shared
cleanup:
- cleanuppad []
+ cleanuppad within none []
br label %shared
shared:
- call void @f()
+ call void @llvm.bar()
br label %exit
exit:
ret void
; CHECK: invoke void @f()
; CHECK: to label %[[exit:[^ ]+]] unwind
; CHECK: catch:
-; CHECK: catchpad []
-; CHECK-NEXT: to label %[[shared:[^ ]+]] unwind
-; CHECK: cleanup:
-; CHECK: cleanuppad []
-; CHECK: call void @f()
+; CHECK: catchpad within %cs []
+; CHECK-NEXT: call void @llvm.bar()
; CHECK-NEXT: unreachable
-; CHECK: [[shared]]:
-; CHECK: call void @f()
+; CHECK: cleanup:
+; CHECK: cleanuppad within none []
+; CHECK: call void @llvm.bar()
; CHECK-NEXT: unreachable
; CHECK: [[exit]]:
; CHECK: ret void
define void @test4() personality i32 (...)* @__CxxFrameHandler3 {
entry:
invoke void @f()
- to label %shared unwind label %catch
+ to label %shared unwind label %catch.switch
+catch.switch:
+ %cs = catchswitch within none [label %catch] unwind to caller
catch:
- catchpad []
- to label %shared unwind label %endcatch
-endcatch:
- catchendpad unwind to caller
+ catchpad within %cs []
+ br label %shared
shared:
- %x = call i32 @g()
- %i = call i32 @g()
+ %x = call i32 @llvm.qux()
+ %i = call i32 @llvm.qux()
%zero.trip = icmp eq i32 %i, 0
br i1 %zero.trip, label %exit, label %loop
loop:
%i.loop = phi i32 [ %i, %shared ], [ %i.dec, %loop.tail ]
- %b = call i1 @b()
+ %b = call i1 @llvm.baz()
br i1 %b, label %left, label %right
left:
- %y = call i32 @g()
+ %y = call i32 @llvm.qux()
br label %loop.tail
right:
- call void @h(i32 %x)
+ call void @llvm.foo(i32 %x)
br label %loop.tail
loop.tail:
%i.dec = sub i32 %i.loop, 1
%done = icmp eq i32 %i.dec, 0
br i1 %done, label %exit, label %loop
exit:
- call void @h(i32 %x)
+ call void @llvm.foo(i32 %x)
unreachable
}
; Make sure we can clone regions that have internal control
; from %shared to %exit.
; CHECK-LABEL: define void @test4(
; CHECK: entry:
-; CHECK: to label %[[shared_E:[^ ]+]] unwind label %catch
+; CHECK: to label %[[shared_E:[^ ]+]] unwind label %catch.switch
; CHECK: catch:
-; CHECK: to label %[[shared_C:[^ ]+]] unwind label %endcatch
-; CHECK: [[shared_C]]:
-; CHECK: [[x_C:%[^ ]+]] = call i32 @g()
-; CHECK: [[i_C:%[^ ]+]] = call i32 @g()
+; CHECK: catchpad within %cs []
+; CHECK: [[x_C:%[^ ]+]] = call i32 @llvm.qux()
+; CHECK: [[i_C:%[^ ]+]] = call i32 @llvm.qux()
; CHECK: [[zt_C:%[^ ]+]] = icmp eq i32 [[i_C]], 0
; CHECK: br i1 [[zt_C]], label %[[exit_C:[^ ]+]], label %[[loop_C:[^ ]+]]
; CHECK: [[shared_E]]:
-; CHECK: [[x_E:%[^ ]+]] = call i32 @g()
-; CHECK: [[i_E:%[^ ]+]] = call i32 @g()
+; CHECK: [[x_E:%[^ ]+]] = call i32 @llvm.qux()
+; CHECK: [[i_E:%[^ ]+]] = call i32 @llvm.qux()
; CHECK: [[zt_E:%[^ ]+]] = icmp eq i32 [[i_E]], 0
; CHECK: br i1 [[zt_E]], label %[[exit_E:[^ ]+]], label %[[loop_E:[^ ]+]]
; CHECK: [[loop_C]]:
-; CHECK: [[iloop_C:%[^ ]+]] = phi i32 [ [[i_C]], %[[shared_C]] ], [ [[idec_C:%[^ ]+]], %[[looptail_C:[^ ]+]] ]
-; CHECK: [[b_C:%[^ ]+]] = call i1 @b()
+; CHECK: [[iloop_C:%[^ ]+]] = phi i32 [ [[i_C]], %catch ], [ [[idec_C:%[^ ]+]], %[[looptail_C:[^ ]+]] ]
+; CHECK: [[b_C:%[^ ]+]] = call i1 @llvm.baz()
; CHECK: br i1 [[b_C]], label %[[left_C:[^ ]+]], label %[[right_C:[^ ]+]]
; CHECK: [[loop_E]]:
; CHECK: [[iloop_E:%[^ ]+]] = phi i32 [ [[i_E]], %[[shared_E]] ], [ [[idec_E:%[^ ]+]], %[[looptail_E:[^ ]+]] ]
-; CHECK: [[b_E:%[^ ]+]] = call i1 @b()
+; CHECK: [[b_E:%[^ ]+]] = call i1 @llvm.baz()
; CHECK: br i1 [[b_E]], label %[[left_E:[^ ]+]], label %[[right_E:[^ ]+]]
; CHECK: [[left_C]]:
-; CHECK: [[y_C:%[^ ]+]] = call i32 @g()
+; CHECK: [[y_C:%[^ ]+]] = call i32 @llvm.qux()
; CHECK: br label %[[looptail_C]]
; CHECK: [[left_E]]:
-; CHECK: [[y_E:%[^ ]+]] = call i32 @g()
+; CHECK: [[y_E:%[^ ]+]] = call i32 @llvm.qux()
; CHECK: br label %[[looptail_E]]
; CHECK: [[right_C]]:
-; CHECK: call void @h(i32 [[x_C]])
+; CHECK: call void @llvm.foo(i32 [[x_C]])
; CHECK: br label %[[looptail_C]]
; CHECK: [[right_E]]:
-; CHECK: call void @h(i32 [[x_E]])
+; CHECK: call void @llvm.foo(i32 [[x_E]])
; CHECK: br label %[[looptail_E]]
; CHECK: [[looptail_C]]:
; CHECK: [[idec_C]] = sub i32 [[iloop_C]], 1
; CHECK: [[done_E:%[^ ]+]] = icmp eq i32 [[idec_E]], 0
; CHECK: br i1 [[done_E]], label %[[exit_E]], label %[[loop_E]]
; CHECK: [[exit_C]]:
-; CHECK: call void @h(i32 [[x_C]])
+; CHECK: call void @llvm.foo(i32 [[x_C]])
; CHECK: unreachable
; CHECK: [[exit_E]]:
-; CHECK: call void @h(i32 [[x_E]])
+; CHECK: call void @llvm.foo(i32 [[x_E]])
; CHECK: unreachable
-define void @test5() personality i32 (...)* @__CxxFrameHandler3 {
+define void @test5() personality i32 (...)* @__C_specific_handler {
entry:
invoke void @f()
to label %exit unwind label %outer
outer:
- %o = cleanuppad []
- %x = call i32 @g()
- invoke void @f()
- to label %outer.ret unwind label %inner
+ %o = cleanuppad within none []
+ %x = call i32 @llvm.qux()
+ invoke void @f() [ "funclet"(token %o) ]
+ to label %outer.ret unwind label %catch.switch
+catch.switch:
+ %cs = catchswitch within %o [label %inner] unwind to caller
inner:
- %i = catchpad []
- to label %inner.catch unwind label %inner.endcatch
-inner.catch:
- catchret %i to label %outer.post-inner
-inner.endcatch:
- catchendpad unwind to caller
+ %i = catchpad within %cs []
+ catchret from %i to label %outer.post-inner
outer.post-inner:
- call void @h(i32 %x)
+ call void @llvm.foo(i32 %x)
br label %outer.ret
outer.ret:
- cleanupret %o unwind to caller
+ cleanupret from %o unwind to caller
exit:
ret void
}
; and so don't need to be spilled.
; CHECK-LABEL: define void @test5(
; CHECK: outer:
-; CHECK: %x = call i32 @g()
+; CHECK: %x = call i32 @llvm.qux()
; CHECK-NEXT: invoke void @f()
-; CHECK-NEXT: to label %outer.ret unwind label %inner
+; CHECK-NEXT: to label %outer.ret unwind label %catch.switch
; CHECK: inner:
-; CHECK: to label %inner.catch unwind label %inner.endcatch
-; CHECK: inner.catch:
-; CHECK-NEXT: catchret %i to label %outer.post-inner
+; CHECK-NEXT: %i = catchpad within %cs []
+; CHECK-NEXT: catchret from %i to label %outer.post-inner
; CHECK: outer.post-inner:
-; CHECK-NEXT: call void @h(i32 %x)
+; CHECK-NEXT: call void @llvm.foo(i32 %x)
; CHECK-NEXT: br label %outer.ret
-define void @test6() personality i32 (...)* @__CxxFrameHandler3 {
+define void @test10() personality i32 (...)* @__CxxFrameHandler3 {
entry:
invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %exit unwind label %right
-left:
- cleanuppad []
- br label %shared
-right:
- catchpad []
- to label %right.catch unwind label %right.end
-right.catch:
- br label %shared
-right.end:
- catchendpad unwind to caller
-shared:
- %x = call i32 @g()
- invoke void @f()
- to label %shared.cont unwind label %inner
-shared.cont:
- unreachable
+ to label %unreachable unwind label %inner
inner:
- %i = cleanuppad []
- call void @h(i32 %x)
- cleanupret %i unwind label %right.end
+ %cleanup = cleanuppad within none []
+ ; make sure we don't overlook this cleanupret and try to process
+ ; successor %outer as a child of inner.
+ cleanupret from %cleanup unwind label %outer
+outer:
+ %cs = catchswitch within none [label %catch.body] unwind to caller
+
+catch.body:
+ %catch = catchpad within %cs []
+ catchret from %catch to label %exit
exit:
ret void
+unreachable:
+ unreachable
}
-; %inner is a cleanup which appears both as a child of
-; %left and as a child of %right. Since statically we
-; need each funclet to have a single parent, we need to
-; clone the entire %inner funclet so we can have one
-; copy under each parent. The cleanupret in %inner
-; unwinds to the catchendpad for %right, so the copy
-; of %inner under %right should include it; the copy
-; of %inner under %left should instead have an
-; `unreachable` inserted there, but the copy under
-; %left still needs to be created because it's possible
-; the dynamic path enters %left, then enters %inner,
-; then calls @h, and that the call to @h doesn't return.
-; CHECK-LABEL: define void @test6(
-; TODO: CHECKs
-
+; CHECK-LABEL: define void @test10(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: invoke
+; CHECK-NEXT: to label %unreachable unwind label %inner
+; CHECK: inner:
+; CHECK-NEXT: %cleanup = cleanuppad within none []
+; CHECK-NEXT: cleanupret from %cleanup unwind label %outer
+; CHECK: outer:
+; CHECK-NEXT: %cs = catchswitch within none [label %catch.body] unwind to caller
+; CHECK: catch.body:
+; CHECK-NEXT: %catch = catchpad within %cs []
+; CHECK-NEXT: catchret from %catch to label %exit
+; CHECK: exit:
+; CHECK-NEXT: ret void
-define void @test7() personality i32 (...)* @__CxxFrameHandler3 {
+define void @test11() personality i32 (...)* @__C_specific_handler {
entry:
invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %unreachable unwind label %right
-left:
- cleanuppad []
- invoke void @f() to label %unreachable unwind label %inner
-right:
- catchpad []
- to label %right.catch unwind label %right.end
-right.catch:
- invoke void @f() to label %unreachable unwind label %inner
-right.end:
- catchendpad unwind to caller
-inner:
- %i = cleanuppad []
- %x = call i32 @g()
- call void @h(i32 %x)
- cleanupret %i unwind label %right.end
-unreachable:
+ to label %exit unwind label %cleanup.outer
+cleanup.outer:
+ %outer = cleanuppad within none []
+ invoke void @f() [ "funclet"(token %outer) ]
+ to label %outer.cont unwind label %cleanup.inner
+outer.cont:
+ br label %merge
+cleanup.inner:
+ %inner = cleanuppad within %outer []
+ br label %merge
+merge:
+ call void @llvm.bar()
unreachable
+exit:
+ ret void
}
-; Another case of a two-parent child (like @test6), this time
-; with the join at the entry itself instead of following a
-; non-pad join.
-; CHECK-LABEL: define void @test7(
-; TODO: CHECKs
-
+; merge.end will get cloned for outer and inner, but is implausible
+; from inner, so the call @f() in inner's copy of merge should be
+; rewritten to call @f()
+; CHECK-LABEL: define void @test11()
+; CHECK: %inner = cleanuppad within %outer []
+; CHECK-NEXT: call void @llvm.bar()
+; CHECK-NEXT: unreachable
-define void @test8() personality i32 (...)* @__CxxFrameHandler3 {
+define void @test12() personality i32 (...)* @__CxxFrameHandler3 !dbg !5 {
entry:
invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
+ to label %cont unwind label %left, !dbg !8
+cont:
invoke void @f()
- to label %unreachable unwind label %right
+ to label %exit unwind label %right
left:
- cleanuppad []
- br label %shared
+ cleanuppad within none []
+ br label %join
right:
- catchpad []
- to label %right.catch unwind label %right.end
-right.catch:
- br label %shared
-right.end:
- catchendpad unwind to caller
-shared:
- invoke void @f()
- to label %unreachable unwind label %inner
-inner:
- cleanuppad []
- invoke void @f()
- to label %unreachable unwind label %inner.child
-inner.child:
- cleanuppad []
- %x = call i32 @g()
- call void @h(i32 %x)
- unreachable
-unreachable:
+ cleanuppad within none []
+ br label %join
+join:
+ ; This call will get cloned; make sure we can handle cloning
+ ; instructions with debug metadata attached.
+ call void @llvm.bar(), !dbg !9
unreachable
+exit:
+ ret void
}
-; %inner is a two-parent child which itself has a child; need
-; to make two copies of both the %inner and %inner.child.
-; CHECK-LABEL: define void @test8(
-; TODO: CHECKs
-
-define void @test9() personality i32 (...)* @__CxxFrameHandler3 {
+; CHECK-LABEL: define void @test13()
+; CHECK: ret void
+define void @test13() personality i32 (...)* @__CxxFrameHandler3 {
entry:
- invoke void @f()
- to label %invoke.cont unwind label %left
-invoke.cont:
- invoke void @f()
- to label %unreachable unwind label %right
-left:
- cleanuppad []
- call void @h(i32 1)
- invoke void @f()
- to label %unreachable unwind label %right
-right:
- cleanuppad []
- call void @h(i32 2)
- invoke void @f()
- to label %unreachable unwind label %left
+ ret void
+
unreachable:
+ cleanuppad within none []
unreachable
}
-; This is an irreducible loop with two funclets that enter each other;
-; need to make two copies of each funclet (one a child of root, the
-; other a child of the opposite funclet), but also make sure not to
-; clone self-descendants (if we tried to do that we'd need to make an
-; infinite number of them). Presumably if optimizations ever generated
-; such a thing it would mean that one of the two cleanups was originally
-; the parent of the other, but that we'd somehow lost track in the CFG
-; of which was which along the way; generating each possibility lets
-; whichever case was correct execute correctly.
-; CHECK-LABEL: define void @test9(
-; TODO: CHECKs
-define void @test10() personality i32 (...)* @__CxxFrameHandler3 {
+define void @test14() personality void (...)* @ProcessCLRException {
entry:
invoke void @f()
- to label %unreachable unwind label %inner
-inner:
- %cleanup = cleanuppad []
- ; make sure we don't overlook this cleanupret and try to process
- ; successor %outer as a child of inner.
- cleanupret %cleanup unwind label %outer
-outer:
- %catch = catchpad [] to label %catch.body unwind label %endpad
-catch.body:
- catchret %catch to label %exit
-endpad:
- catchendpad unwind to caller
+ to label %cont unwind label %cleanup
+cont:
+ invoke void @f()
+ to label %exit unwind label %switch.outer
+cleanup:
+ %cleanpad = cleanuppad within none []
+ invoke void @f() [ "funclet" (token %cleanpad) ]
+ to label %cleanret unwind label %switch.inner
+switch.inner:
+ %cs.inner = catchswitch within %cleanpad [label %pad.inner] unwind to caller
+pad.inner:
+ %cp.inner = catchpad within %cs.inner [i32 1]
+ catchret from %cp.inner to label %join
+cleanret:
+ cleanupret from %cleanpad unwind to caller
+switch.outer:
+ %cs.outer = catchswitch within none [label %pad.outer] unwind to caller
+pad.outer:
+ %cp.outer = catchpad within %cs.outer [i32 2]
+ catchret from %cp.outer to label %join
+join:
+ %phi = phi i32 [ 1, %pad.inner ], [ 2, %pad.outer ]
+ call void @llvm.foo(i32 %phi)
+ unreachable
exit:
ret void
-unreachable:
- unreachable
}
-; CHECK-LABEL: define void @test10(
-; CHECK-NEXT: entry:
-; CHECK-NEXT: invoke
-; CHECK-NEXT: to label %unreachable unwind label %inner
-; CHECK: inner:
-; CHECK-NEXT: %cleanup = cleanuppad
-; CHECK-NEXT: cleanupret %cleanup unwind label %outer
-; CHECK: outer:
-; CHECK-NEXT: %catch = catchpad []
-; CHECK-NEXT: to label %catch.body unwind label %endpad
-; CHECK: catch.body:
-; CHECK-NEXT: catchret %catch to label %exit
-; CHECK: endpad:
-; CHECK-NEXT: catchendpad unwind to caller
-; CHECK: exit:
-; CHECK-NEXT: ret void
+; Both catchrets target %join, but the catchret from %cp.inner
+; returns to %cleanpad and the catchret from %cp.outer returns to the
+; main function, so %join needs to get cloned and one of the cleanuprets
+; needs to be updated to target the clone
+; CHECK-LABEL: define void @test14()
+; CHECK: catchret from %cp.inner to label %[[Clone1:.+]]
+; CHECK: catchret from %cp.outer to label %[[Clone2:.+]]
+; CHECK: [[Clone1]]:
+; CHECK-NEXT: call void @llvm.foo(i32 1)
+; CHECK-NEXT: unreachable
+; CHECK: [[Clone2]]:
+; CHECK-NEXT: call void @llvm.foo(i32 2)
+; CHECK-NEXT: unreachable
+
+;; Debug info (from test12)
+
+; Make sure the DISubprogram doesn't get cloned
+; CHECK-LABEL: !llvm.module.flags
+; CHECK-NOT: !DISubprogram
+; CHECK: !{{[0-9]+}} = distinct !DISubprogram(name: "test12"
+; CHECK-NOT: !DISubprogram
+!llvm.module.flags = !{!0}
+!llvm.dbg.cu = !{!1}
+
+!0 = !{i32 2, !"Debug Info Version", i32 3}
+!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "compiler", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !3, subprograms: !4)
+!2 = !DIFile(filename: "test.cpp", directory: ".")
+!3 = !{}
+!4 = !{!5}
+!5 = distinct !DISubprogram(name: "test12", scope: !2, file: !2, type: !6, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, variables: !3)
+!6 = !DISubroutineType(types: !7)
+!7 = !{null}
+!8 = !DILocation(line: 1, scope: !5)
+!9 = !DILocation(line: 2, scope: !5)