llvm/test/CodeGen/CellSPU/rotate_ops.ll
Bill Wendling 70fcb6bf58 CellSPU doesn't appear to support fully the "ISD::ROTR" operation. The DAG
combiner can now generate ROTR if the backend says that it can handle it. Cell
SPU says this, but gets an error from code gen saying that it can't select
ROTR. I'm xfailing this test until this can be fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55579 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-31 02:32:12 +00:00

166 lines
6.0 KiB
LLVM

; RUN: llvm-as -o - %s | llc -march=cellspu -f -o %t1.s
; RUN: grep rot %t1.s | count 85
; RUN: grep roth %t1.s | count 8
; RUN: grep roti.*5 %t1.s | count 1
; RUN: grep roti.*27 %t1.s | count 1
; RUN grep rothi.*5 %t1.s | count 2
; RUN grep rothi.*11 %t1.s | count 1
; RUN grep rothi.*,.3 %t1.s | count 1
; RUN: grep andhi %t1.s | count 4
; RUN: grep shlhi %t1.s | count 4
; XFAIL: *
;; FIXME: ROTR hasn't been implemented in CellSPU! It's marked as a "legal"
;; operation, but if used, the code generator complains that it can't
;; be selected.
target datalayout = "E-p:32:32:128-f64:64:128-f32:32:128-i64:32:128-i32:32:128-i16:16:128-i8:8:128-i1:8:128-a0:0:128-v128:128:128-s0:128:128"
target triple = "spu"
; Vector rotates are not currently supported in gcc or llvm assembly. These are
; not tested.
; 32-bit rotates:
define i32 @rotl32_1a(i32 %arg1, i8 %arg2) {
%tmp1 = zext i8 %arg2 to i32 ; <i32> [#uses=1]
%B = shl i32 %arg1, %tmp1 ; <i32> [#uses=1]
%arg22 = sub i8 32, %arg2 ; <i8> [#uses=1]
%tmp2 = zext i8 %arg22 to i32 ; <i32> [#uses=1]
%C = lshr i32 %arg1, %tmp2 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
define i32 @rotl32_1b(i32 %arg1, i16 %arg2) {
%tmp1 = zext i16 %arg2 to i32 ; <i32> [#uses=1]
%B = shl i32 %arg1, %tmp1 ; <i32> [#uses=1]
%arg22 = sub i16 32, %arg2 ; <i8> [#uses=1]
%tmp2 = zext i16 %arg22 to i32 ; <i32> [#uses=1]
%C = lshr i32 %arg1, %tmp2 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
define i32 @rotl32_2(i32 %arg1, i32 %arg2) {
%B = shl i32 %arg1, %arg2 ; <i32> [#uses=1]
%tmp1 = sub i32 32, %arg2 ; <i32> [#uses=1]
%C = lshr i32 %arg1, %tmp1 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
define i32 @rotl32_3(i32 %arg1, i32 %arg2) {
%tmp1 = sub i32 32, %arg2 ; <i32> [#uses=1]
%B = shl i32 %arg1, %arg2 ; <i32> [#uses=1]
%C = lshr i32 %arg1, %tmp1 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
define i32 @rotl32_4(i32 %arg1, i32 %arg2) {
%tmp1 = sub i32 32, %arg2 ; <i32> [#uses=1]
%C = lshr i32 %arg1, %tmp1 ; <i32> [#uses=1]
%B = shl i32 %arg1, %arg2 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
define i32 @rotr32_1(i32 %A, i8 %Amt) {
%tmp1 = zext i8 %Amt to i32 ; <i32> [#uses=1]
%B = lshr i32 %A, %tmp1 ; <i32> [#uses=1]
%Amt2 = sub i8 32, %Amt ; <i8> [#uses=1]
%tmp2 = zext i8 %Amt2 to i32 ; <i32> [#uses=1]
%C = shl i32 %A, %tmp2 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
define i32 @rotr32_2(i32 %A, i8 %Amt) {
%Amt2 = sub i8 32, %Amt ; <i8> [#uses=1]
%tmp1 = zext i8 %Amt to i32 ; <i32> [#uses=1]
%B = lshr i32 %A, %tmp1 ; <i32> [#uses=1]
%tmp2 = zext i8 %Amt2 to i32 ; <i32> [#uses=1]
%C = shl i32 %A, %tmp2 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
; Rotate left with immediate
define i32 @rotli32(i32 %A) {
%B = shl i32 %A, 5 ; <i32> [#uses=1]
%C = lshr i32 %A, 27 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
; Rotate right with immediate
define i32 @rotri32(i32 %A) {
%B = lshr i32 %A, 5 ; <i32> [#uses=1]
%C = shl i32 %A, 27 ; <i32> [#uses=1]
%D = or i32 %B, %C ; <i32> [#uses=1]
ret i32 %D
}
; 16-bit rotates:
define i16 @rotr16_1(i16 %arg1, i8 %arg) {
%tmp1 = zext i8 %arg to i16 ; <i16> [#uses=1]
%B = lshr i16 %arg1, %tmp1 ; <i16> [#uses=1]
%arg2 = sub i8 16, %arg ; <i8> [#uses=1]
%tmp2 = zext i8 %arg2 to i16 ; <i16> [#uses=1]
%C = shl i16 %arg1, %tmp2 ; <i16> [#uses=1]
%D = or i16 %B, %C ; <i16> [#uses=1]
ret i16 %D
}
define i16 @rotr16_2(i16 %arg1, i16 %arg) {
%B = lshr i16 %arg1, %arg ; <i16> [#uses=1]
%tmp1 = sub i16 16, %arg ; <i16> [#uses=1]
%C = shl i16 %arg1, %tmp1 ; <i16> [#uses=1]
%D = or i16 %B, %C ; <i16> [#uses=1]
ret i16 %D
}
define i16 @rotli16(i16 %A) {
%B = shl i16 %A, 5 ; <i16> [#uses=1]
%C = lshr i16 %A, 11 ; <i16> [#uses=1]
%D = or i16 %B, %C ; <i16> [#uses=1]
ret i16 %D
}
define i16 @rotri16(i16 %A) {
%B = lshr i16 %A, 5 ; <i16> [#uses=1]
%C = shl i16 %A, 11 ; <i16> [#uses=1]
%D = or i16 %B, %C ; <i16> [#uses=1]
ret i16 %D
}
define i8 @rotl8(i8 %A, i8 %Amt) {
%B = shl i8 %A, %Amt ; <i8> [#uses=1]
%Amt2 = sub i8 8, %Amt ; <i8> [#uses=1]
%C = lshr i8 %A, %Amt2 ; <i8> [#uses=1]
%D = or i8 %B, %C ; <i8> [#uses=1]
ret i8 %D
}
define i8 @rotr8(i8 %A, i8 %Amt) {
%B = lshr i8 %A, %Amt ; <i8> [#uses=1]
%Amt2 = sub i8 8, %Amt ; <i8> [#uses=1]
%C = shl i8 %A, %Amt2 ; <i8> [#uses=1]
%D = or i8 %B, %C ; <i8> [#uses=1]
ret i8 %D
}
define i8 @rotli8(i8 %A) {
%B = shl i8 %A, 5 ; <i8> [#uses=1]
%C = lshr i8 %A, 3 ; <i8> [#uses=1]
%D = or i8 %B, %C ; <i8> [#uses=1]
ret i8 %D
}
define i8 @rotri8(i8 %A) {
%B = lshr i8 %A, 5 ; <i8> [#uses=1]
%C = shl i8 %A, 3 ; <i8> [#uses=1]
%D = or i8 %B, %C ; <i8> [#uses=1]
ret i8 %D
}