llvm-project/llvm/test/Transforms/CondProp/phisimplify3.ll

27 lines
589 B
LLVM

; RUN: llvm-as < %s | opt -condprop | llvm-dis | not grep phi
define i32 @foo(i1, i32, i32) {
prologue:
br i1 %0, label %eq, label %ne
eq: ; preds = %prologue
store i32 0, i32* inttoptr (i32 10000 to i32*)
%3 = icmp eq i32 %1, %2 ; <i1> [#uses=1]
br label %join
ne: ; preds = %prologue
%4 = icmp ne i32 %1, %2 ; <i1> [#uses=1]
br label %join
join: ; preds = %ne, %eq
%5 = phi i1 [ %3, %eq ], [ %4, %ne ] ; <i1> [#uses=1]
br i1 %5, label %yes, label %no
yes: ; preds = %join
store i32 0, i32* inttoptr (i32 20000 to i32*)
ret i32 5
no: ; preds = %join
ret i32 20
}