forked from OSchip/llvm-project
38 lines
648 B
LLVM
38 lines
648 B
LLVM
; RUN: opt < %s -analyze -scalar-evolution | grep {(trunc i} | not grep ext
|
|
|
|
define i16 @test1(i8 %x) {
|
|
%A = sext i8 %x to i32
|
|
%B = trunc i32 %A to i16
|
|
ret i16 %B
|
|
}
|
|
|
|
define i8 @test2(i16 %x) {
|
|
%A = sext i16 %x to i32
|
|
%B = trunc i32 %A to i8
|
|
ret i8 %B
|
|
}
|
|
|
|
define i16 @test3(i16 %x) {
|
|
%A = sext i16 %x to i32
|
|
%B = trunc i32 %A to i16
|
|
ret i16 %B
|
|
}
|
|
|
|
define i16 @test4(i8 %x) {
|
|
%A = zext i8 %x to i32
|
|
%B = trunc i32 %A to i16
|
|
ret i16 %B
|
|
}
|
|
|
|
define i8 @test5(i16 %x) {
|
|
%A = zext i16 %x to i32
|
|
%B = trunc i32 %A to i8
|
|
ret i8 %B
|
|
}
|
|
|
|
define i16 @test6(i16 %x) {
|
|
%A = zext i16 %x to i32
|
|
%B = trunc i32 %A to i16
|
|
ret i16 %B
|
|
}
|