mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-22 09:29:31 +00:00
f2f6ce65b7
input filename so that opt doesn't print the input filename in the output so that grep lines in the tests don't unintentionally match strings in the input filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
781 B
LLVM
39 lines
781 B
LLVM
; RUN: opt < %s -instcombine -S > %t
|
|
; RUN: not grep zext %t
|
|
; RUN: not grep sext %t
|
|
|
|
; Instcombine should be able to eliminate all of these ext casts.
|
|
|
|
declare void @use(i32)
|
|
|
|
define i64 @foo(i64 %a) {
|
|
%b = trunc i64 %a to i32
|
|
%c = and i32 %b, 15
|
|
%d = zext i32 %c to i64
|
|
call void @use(i32 %b)
|
|
ret i64 %d
|
|
}
|
|
define i64 @bar(i64 %a) {
|
|
%b = trunc i64 %a to i32
|
|
%c = shl i32 %b, 4
|
|
%q = ashr i32 %c, 4
|
|
%d = sext i32 %q to i64
|
|
call void @use(i32 %b)
|
|
ret i64 %d
|
|
}
|
|
define i64 @goo(i64 %a) {
|
|
%b = trunc i64 %a to i32
|
|
%c = and i32 %b, 8
|
|
%d = zext i32 %c to i64
|
|
call void @use(i32 %b)
|
|
ret i64 %d
|
|
}
|
|
define i64 @hoo(i64 %a) {
|
|
%b = trunc i64 %a to i32
|
|
%c = and i32 %b, 8
|
|
%x = xor i32 %c, 8
|
|
%d = zext i32 %x to i64
|
|
call void @use(i32 %b)
|
|
ret i64 %d
|
|
}
|