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llvm-mirror/test/Transforms/LoopStrengthReduce/funclet.ll
David Majnemer 49dcd13916 [IR] Remove terminatepad 
It turns out that terminatepad gives little benefit over a cleanuppad
which calls the termination function.  This is not sufficient to
implement fully generic filters but MSVC doesn't support them which
makes terminatepad a little over-designed.

Depends on D15478.

Differential Revision: http://reviews.llvm.org/D15479

llvm-svn: 255522
2015-12-14 18:34:23 +00:00

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6.4 KiB
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; RUN: opt < %s -loop-reduce -S | FileCheck %s
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i686-pc-windows-msvc"
declare i32 @_except_handler3(...)
declare i32 @__CxxFrameHandler3(...)
declare void @external(i32*)
declare void @reserve()
define void @f() personality i32 (...)* @_except_handler3 {
entry:
br label %throw
throw: ; preds = %throw, %entry
%tmp96 = getelementptr inbounds i8, i8* undef, i32 1
invoke void @reserve()
to label %throw unwind label %pad
pad: ; preds = %throw
%phi2 = phi i8* [ %tmp96, %throw ]
%cs = catchswitch within none [label %unreachable] unwind label %blah2
unreachable:
catchpad within %cs []
unreachable
blah2:
%cleanuppadi4.i.i.i = cleanuppad within none []
br label %loop_body
loop_body: ; preds = %iter, %pad
%tmp99 = phi i8* [ %tmp101, %iter ], [ %phi2, %blah2 ]
%tmp100 = icmp eq i8* %tmp99, undef
br i1 %tmp100, label %unwind_out, label %iter
iter: ; preds = %loop_body
%tmp101 = getelementptr inbounds i8, i8* %tmp99, i32 1
br i1 undef, label %unwind_out, label %loop_body
unwind_out: ; preds = %iter, %loop_body
cleanupret from %cleanuppadi4.i.i.i unwind to caller
}
; CHECK-LABEL: define void @f(
; CHECK: cleanuppad within none []
; CHECK-NEXT: ptrtoint i8* %phi2 to i32
define void @g() personality i32 (...)* @_except_handler3 {
entry:
br label %throw
throw: ; preds = %throw, %entry
%tmp96 = getelementptr inbounds i8, i8* undef, i32 1
invoke void @reserve()
to label %throw unwind label %pad
pad:
%phi2 = phi i8* [ %tmp96, %throw ]
%cs = catchswitch within none [label %unreachable, label %blah] unwind to caller
unreachable:
catchpad within %cs []
unreachable
blah:
%catchpad = catchpad within %cs []
br label %loop_body
unwind_out:
catchret from %catchpad to label %leave
leave:
ret void
loop_body: ; preds = %iter, %pad
%tmp99 = phi i8* [ %tmp101, %iter ], [ %phi2, %blah ]
%tmp100 = icmp eq i8* %tmp99, undef
br i1 %tmp100, label %unwind_out, label %iter
iter: ; preds = %loop_body
%tmp101 = getelementptr inbounds i8, i8* %tmp99, i32 1
br i1 undef, label %unwind_out, label %loop_body
}
; CHECK-LABEL: define void @g(
; CHECK: blah:
; CHECK-NEXT: catchpad within %cs []
; CHECK-NEXT: ptrtoint i8* %phi2 to i32
define void @h() personality i32 (...)* @_except_handler3 {
entry:
br label %throw
throw: ; preds = %throw, %entry
%tmp96 = getelementptr inbounds i8, i8* undef, i32 1
invoke void @reserve()
to label %throw unwind label %pad
pad:
%cs = catchswitch within none [label %unreachable, label %blug] unwind to caller
unreachable:
catchpad within %cs []
unreachable
blug:
%phi2 = phi i8* [ %tmp96, %pad ]
%catchpad = catchpad within %cs []
br label %loop_body
unwind_out:
catchret from %catchpad to label %leave
leave:
ret void
loop_body: ; preds = %iter, %pad
%tmp99 = phi i8* [ %tmp101, %iter ], [ %phi2, %blug ]
%tmp100 = icmp eq i8* %tmp99, undef
br i1 %tmp100, label %unwind_out, label %iter
iter: ; preds = %loop_body
%tmp101 = getelementptr inbounds i8, i8* %tmp99, i32 1
br i1 undef, label %unwind_out, label %loop_body
}
; CHECK-LABEL: define void @h(
; CHECK: blug:
; CHECK: catchpad within %cs []
; CHECK-NEXT: ptrtoint i8* %phi2 to i32
define void @i() personality i32 (...)* @_except_handler3 {
entry:
br label %throw
throw: ; preds = %throw, %entry
%tmp96 = getelementptr inbounds i8, i8* undef, i32 1
invoke void @reserve()
to label %throw unwind label %catchpad
catchpad: ; preds = %throw
%phi2 = phi i8* [ %tmp96, %throw ]
%cs = catchswitch within none [label %cp_body] unwind label %cleanuppad
cp_body:
catchpad within %cs []
br label %loop_head
cleanuppad:
cleanuppad within none []
br label %loop_head
loop_head:
br label %loop_body
loop_body: ; preds = %iter, %catchpad
%tmp99 = phi i8* [ %tmp101, %iter ], [ %phi2, %loop_head ]
%tmp100 = icmp eq i8* %tmp99, undef
br i1 %tmp100, label %unwind_out, label %iter
iter: ; preds = %loop_body
%tmp101 = getelementptr inbounds i8, i8* %tmp99, i32 1
br i1 undef, label %unwind_out, label %loop_body
unwind_out: ; preds = %iter, %loop_body
unreachable
}
; CHECK-LABEL: define void @i(
; CHECK: ptrtoint i8* %phi2 to i32
define void @test1(i32* %b, i32* %c) personality i32 (...)* @__CxxFrameHandler3 {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%d.0 = phi i32* [ %b, %entry ], [ %incdec.ptr, %for.inc ]
invoke void @external(i32* %d.0)
to label %for.inc unwind label %catch.dispatch
for.inc: ; preds = %for.cond
%incdec.ptr = getelementptr inbounds i32, i32* %d.0, i32 1
br label %for.cond
catch.dispatch: ; preds = %for.cond
%cs = catchswitch within none [label %catch] unwind label %catch.dispatch.2
catch: ; preds = %catch.dispatch
%0 = catchpad within %cs [i8* null, i32 64, i8* null]
catchret from %0 to label %try.cont
try.cont: ; preds = %catch
invoke void @external(i32* %c)
to label %try.cont.7 unwind label %catch.dispatch.2
catch.dispatch.2: ; preds = %try.cont, %catchendblock
%e.0 = phi i32* [ %c, %try.cont ], [ %b, %catch.dispatch ]
%cs2 = catchswitch within none [label %catch.4] unwind to caller
catch.4: ; preds = %catch.dispatch.2
catchpad within %cs2 [i8* null, i32 64, i8* null]
unreachable
try.cont.7: ; preds = %try.cont
ret void
}
; CHECK-LABEL: define void @test1(
; CHECK: for.cond:
; CHECK: %d.0 = phi i32* [ %b, %entry ], [ %incdec.ptr, %for.inc ]
; CHECK: catch.dispatch.2:
; CHECK: %e.0 = phi i32* [ %c, %try.cont ], [ %b, %catch.dispatch ]
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