llvm-project/llvm/test/Transforms/SCCP/apint-ipsccp1.ll

25 lines
438 B
LLVM

; RUN: opt < %s -ipsccp -S | grep -v "ret i512 undef" | \
; RUN: grep "ret i8 2"
define internal i512 @test(i1 %B) {
br i1 %B, label %BB1, label %BB2
BB1:
%Val = add i512 0, 1
br label %BB3
BB2:
br label %BB3
BB3:
%Ret = phi i512 [%Val, %BB1], [2, %BB2]
ret i512 %Ret
}
define i8 @caller()
{
%t1 = and i2 2, 1
%t11 = trunc i2 %t1 to i1
%t2 = call i512 @test(i1 %t11)
%t3 = trunc i512 %t2 to i8
ret i8 %t3
}