mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-26 23:29:22 +00:00
The zeroextend IR instruction is lowered to an 'and' node with an immediate mask operand, which in turn gets legalised to a sequence of ori's & ands. This can be done more efficiently using the rldicl instruction. Patch by Tobias von Koch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162724 91177308-0d34-0410-b5e6-96231b3b80d8
12 lines
331 B
LLVM
12 lines
331 B
LLVM
; RUN: llc < %s | FileCheck %s
|
|
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
|
|
target triple = "powerpc64-unknown-linux"
|
|
|
|
define i64 @fun(i32 %arg32) nounwind {
|
|
entry:
|
|
; CHECK: rldicl {{[0-9]+}}, {{[0-9]+}}, 0, 32
|
|
%o = zext i32 %arg32 to i64
|
|
ret i64 %o
|
|
}
|
|
|