mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
fe3595555a
can safely use the NSW bit on the Add. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85164 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
430 B
LLVM
15 lines
430 B
LLVM
; RUN: opt < %s -instcombine -S | grep {add nsw i32}
|
|
; RUN: opt < %s -instcombine -S | grep sext | count 1
|
|
|
|
; Should only have one sext and the add should be i32 instead of i64.
|
|
|
|
define i64 @test1(i32 %A) {
|
|
%B = ashr i32 %A, 7 ; <i32> [#uses=1]
|
|
%C = ashr i32 %A, 9 ; <i32> [#uses=1]
|
|
%D = sext i32 %B to i64 ; <i64> [#uses=1]
|
|
%E = sext i32 %C to i64 ; <i64> [#uses=1]
|
|
%F = add i64 %D, %E ; <i64> [#uses=1]
|
|
ret i64 %F
|
|
}
|
|
|