Files
clang-p2996/llvm/test/Transforms/SimplifyCFG/PR9946.ll
Roman Lebedev 4be8707e64 [SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
Still boring, simply drop all edges to successors of DomBlock,
and add an edge to to BB instead.
2020-12-20 00:18:33 +03:00

19 lines
584 B
LLVM

; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -disable-output < %s
@foo = external constant i32
define i32 @f() {
entry:
br i1 icmp eq (i64 and (i64 ptrtoint (i32* @foo to i64), i64 15), i64 0), label %if.end, label %if.then
if.then: ; preds = %entry
br label %return
if.end: ; preds = %entry
br label %return
return: ; preds = %if.end, %if.then
%storemerge = phi i32 [ 1, %if.end ], [ 0, %if.then ]
ret i32 %storemerge
}