mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 16:31:16 +00:00
448a1a0734
Fix cases where the Value itself is used, and not the constant value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206214 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
2.2 KiB
LLVM
68 lines
2.2 KiB
LLVM
; RUN: opt -S -instcombine < %s | FileCheck %s
|
|
|
|
; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL
|
|
; CHECK: mul <4 x i32> %in, <i32 0, i32 -32, i32 0, i32 -32>
|
|
; CHECK-NEXT: ret
|
|
define <4 x i32> @test_FoldShiftByConstant_CreateSHL(<4 x i32> %in) {
|
|
%mul.i = mul <4 x i32> %in, <i32 0, i32 -1, i32 0, i32 -1>
|
|
%vshl_n = shl <4 x i32> %mul.i, <i32 5, i32 5, i32 5, i32 5>
|
|
ret <4 x i32> %vshl_n
|
|
}
|
|
|
|
; CHECK-LABEL: @test_FoldShiftByConstant_CreateSHL2
|
|
; CHECK: mul <8 x i16> %in, <i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32, i16 0, i16 -32>
|
|
; CHECK-NEXT: ret
|
|
define <8 x i16> @test_FoldShiftByConstant_CreateSHL2(<8 x i16> %in) {
|
|
%mul.i = mul <8 x i16> %in, <i16 0, i16 -1, i16 0, i16 -1, i16 0, i16 -1, i16 0, i16 -1>
|
|
%vshl_n = shl <8 x i16> %mul.i, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
|
|
ret <8 x i16> %vshl_n
|
|
}
|
|
|
|
; CHECK-LABEL: @test_FoldShiftByConstant_CreateAnd
|
|
; CHECK: mul <16 x i8> %in0, <i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33, i8 33>
|
|
; CHECK-NEXT: and <16 x i8> %vsra_n2, <i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32, i8 -32>
|
|
; CHECK-NEXT: ret
|
|
define <16 x i8> @test_FoldShiftByConstant_CreateAnd(<16 x i8> %in0) {
|
|
%vsra_n = ashr <16 x i8> %in0, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
|
|
%tmp = add <16 x i8> %in0, %vsra_n
|
|
%vshl_n = shl <16 x i8> %tmp, <i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5, i8 5>
|
|
ret <16 x i8> %vshl_n
|
|
}
|
|
|
|
|
|
define i32 @bar(i32 %x, i32 %y) {
|
|
%a = lshr i32 %x, 4
|
|
%b = add i32 %a, %y
|
|
%c = shl i32 %b, 4
|
|
ret i32 %c
|
|
}
|
|
|
|
define <2 x i32> @bar_v2i32(<2 x i32> %x, <2 x i32> %y) {
|
|
%a = lshr <2 x i32> %x, <i32 5, i32 5>
|
|
%b = add <2 x i32> %a, %y
|
|
%c = shl <2 x i32> %b, <i32 5, i32 5>
|
|
ret <2 x i32> %c
|
|
}
|
|
|
|
|
|
|
|
|
|
define i32 @foo(i32 %x, i32 %y) {
|
|
%a = lshr i32 %x, 4
|
|
%b = and i32 %a, 8
|
|
%c = add i32 %b, %y
|
|
%d = shl i32 %c, 4
|
|
ret i32 %d
|
|
}
|
|
|
|
define <2 x i32> @foo_v2i32(<2 x i32> %x, <2 x i32> %y) {
|
|
%a = lshr <2 x i32> %x, <i32 4, i32 4>
|
|
%b = and <2 x i32> %a, <i32 8, i32 8>
|
|
%c = add <2 x i32> %b, %y
|
|
%d = shl <2 x i32> %c, <i32 4, i32 4>
|
|
ret <2 x i32> %d
|
|
}
|
|
|
|
|
|
|