llvm/test/Transforms/SLPVectorizer/catchswitch.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: %if x86-registered-target %{ opt -passes=slp-vectorizer -S -mtriple=x86_64-pc-windows-msvc19.29.30145 < %s | FileCheck %s %}
; RUN: %if aarch64-registered-target %{ opt -passes=slp-vectorizer -S -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s %}

; This used to crash in SLP vectorization when attempting to set the
; IRBuilder's insertion point to the end of a catchswitch block, which
; is invalid.  Only phis and the catchswitch may be present, so we must
; avoid trying to insert shuffles into such a block.

%typeA = type { ptr, ptr, [20 x i8] }
@globalA = external global %typeA

declare i32 @__CxxFrameHandler3(...)
declare void @funcA()

define void @important_func() personality ptr @__CxxFrameHandler3 {
; CHECK-LABEL: @important_func(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[LABELB:%.*]]
; CHECK:       labelB:
; CHECK-NEXT:    invoke void @funcA()
; CHECK-NEXT:    to label [[LABELC:%.*]] unwind label [[LABELD:%.*]]
; CHECK:       labelC:
; CHECK-NEXT:    invoke void @funcA()
; CHECK-NEXT:    to label [[LABELE:%.*]] unwind label [[LABELF:%.*]]
; CHECK:       labelD:
; CHECK-NEXT:    [[TMP0:%.*]] = cleanuppad within none []
; CHECK-NEXT:    unreachable
; CHECK:       labelE:
; CHECK-NEXT:    [[TMP1:%.*]] = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 1
; CHECK-NEXT:    [[F:%.*]] = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 2
; CHECK-NEXT:    invoke void @funcA()
; CHECK-NEXT:    to label [[LABELG:%.*]] unwind label [[CATCH_DISPATCH:%.*]]
; CHECK:       labelF:
; CHECK-NEXT:    [[TMP2:%.*]] = cleanuppad within none []
; CHECK-NEXT:    cleanupret from [[TMP2]] unwind to caller
; CHECK:       labelG:
; CHECK-NEXT:    [[G:%.*]] = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 0
; CHECK-NEXT:    [[H:%.*]] = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 3
; CHECK-NEXT:    invoke void @funcA()
; CHECK-NEXT:    to label [[LABELH:%.*]] unwind label [[CATCH_DISPATCH]]
; CHECK:       labelH:
; CHECK-NEXT:    unreachable
; CHECK:       catch.dispatch:
; CHECK-NEXT:    [[TMP3:%.*]] = phi float [ [[G]], [[LABELG]] ], [ [[TMP1]], [[LABELE]] ]
; CHECK-NEXT:    [[TMP4:%.*]] = phi float [ [[H]], [[LABELG]] ], [ [[F]], [[LABELE]] ]
; CHECK-NEXT:    [[TMP5:%.*]] = catchswitch within none [label %catch] unwind to caller
; CHECK:       catch:
; CHECK-NEXT:    [[TMP6:%.*]] = catchpad within [[TMP5]] [ptr @globalA, i32 8, ptr null]
; CHECK-NEXT:    unreachable
;
entry:
  br label %labelB

labelB:
  invoke void @funcA()
  to label %labelC unwind label %labelD

labelC:
  invoke void @funcA()
  to label %labelE unwind label %labelF

labelD:
  %0 = cleanuppad within none []
  unreachable

labelE:
  %1 = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 1
  %f = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 2
  invoke void @funcA()
  to label %labelG unwind label %catch.dispatch

labelF:
  %2 = cleanuppad within none []
  cleanupret from %2 unwind to caller

labelG:
  %g = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 0
  %h = extractelement <4 x float> <float +inf, float +inf, float +inf, float -inf>, i64 3
  invoke void @funcA()
  to label %labelH unwind label %catch.dispatch

labelH:
  unreachable

catch.dispatch:
  %3 = phi float [ %g, %labelG ], [ %1, %labelE ]
  %4 = phi float [ %h, %labelG ], [ %f, %labelE ]
  %5 = catchswitch within none [label %catch] unwind to caller

catch:
  %6 = catchpad within %5 [ptr @globalA, i32 8, ptr null]
  unreachable
}