37 lines
1.3 KiB
LLVM
37 lines
1.3 KiB
LLVM
; RUN: opt -disable-output -licm -enable-new-pm=0 -print-memoryssa -enable-mssa-loop-dependency=true < %s 2>&1 | FileCheck %s
|
|
; RUN: opt -disable-output -passes='loop-mssa(licm),print<memoryssa>' < %s 2>&1 | FileCheck %s
|
|
@v_274 = external dso_local global i64, align 1
|
|
@v_295 = external dso_local global i16, align 1
|
|
@v_335 = external dso_local global i32, align 1
|
|
|
|
; CHECK-LABEL: @main()
|
|
; CHECK-NOT: 5 = MemoryPhi(
|
|
; CHECK-NOT: 6 = MemoryPhi(
|
|
; CHECK: 4 = MemoryPhi(
|
|
; CHECK-NOT: 7 = MemoryPhi(
|
|
define dso_local void @main() {
|
|
entry:
|
|
store i32 undef, i32* @v_335, align 1
|
|
br i1 undef, label %gate, label %exit
|
|
|
|
nopredentry1: ; No predecessors!
|
|
br label %preinfiniteloop
|
|
|
|
nopredentry2: ; No predecessors!
|
|
br label %gate
|
|
|
|
gate: ; preds = %nopredentry2, %entry
|
|
br i1 undef, label %preinfiniteloop, label %exit
|
|
|
|
preinfiniteloop: ; preds = %gate, %nopredentry1
|
|
br label %infiniteloop
|
|
|
|
infiniteloop: ; preds = %infiniteloop, %preinfiniteloop
|
|
store i16 undef, i16* @v_295, align 1
|
|
br label %infiniteloop
|
|
|
|
exit: ; preds = %gate, %entry
|
|
store i64 undef, i64* @v_274, align 1
|
|
ret void
|
|
}
|