llvm-mirror/test/CodeGen/X86/shift-combine.ll
Chris Lattner 64a1a9f502 third time around: instead of disabling this completely,
only disable it if we don't know it will be obviously profitable.
Still fixme, but less so. :)

llvm-svn: 44658
2007-12-06 07:47:55 +00:00

16 lines
567 B
LLVM

; RUN: llvm-as < %s | llc | not grep shrl
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i686-apple-darwin8"
@array = weak global [4 x i32] zeroinitializer ; <[4 x i32]*> [#uses=1]
define i32 @foo(i32 %x) {
entry:
%tmp2 = lshr i32 %x, 2 ; <i32> [#uses=1]
%tmp3 = and i32 %tmp2, 3 ; <i32> [#uses=1]
%tmp4 = getelementptr [4 x i32]* @array, i32 0, i32 %tmp3 ; <i32*> [#uses=1]
%tmp5 = load i32* %tmp4, align 4 ; <i32> [#uses=1]
ret i32 %tmp5
}