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llvm-mirror/test/CodeGen/PowerPC/vselect-constants.ll
Jinsong Ji 7cf75fd653 [PowerPC] Use xxleqv to set all one vector IMM(-1).
Summary:
xxspltib/vspltisb are 3 cycle PM instructions,
xxleqv is 2 cycle ALU instruction.

We should use xxleqv to set all one vectors.

Reviewers: hfinkel, nemanjai, steven.zhang

Subscribers: hiraditya, kbarton, MaskRay, shchenz, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65529

llvm-svn: 369006
2019-08-15 14:32:51 +00:00

197 lines
6.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-unknown | FileCheck %s
; First, check the generic pattern for any 2 vector constants. Then, check special cases where
; the constants are all off-by-one. Finally, check the extra special cases where the constants
; include 0 or -1.
; Each minimal select test is repeated with a more typical pattern that includes a compare to
; generate the condition value.
define <4 x i32> @sel_C1_or_C2_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_C1_or_C2_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, -16
; CHECK-NEXT: vspltisw 4, 15
; CHECK-NEXT: addis 3, 2, .LCPI0_0@toc@ha
; CHECK-NEXT: addis 4, 2, .LCPI0_1@toc@ha
; CHECK-NEXT: addi 3, 3, .LCPI0_0@toc@l
; CHECK-NEXT: addi 4, 4, .LCPI0_1@toc@l
; CHECK-NEXT: vsubuwm 3, 4, 3
; CHECK-NEXT: lvx 4, 0, 4
; CHECK-NEXT: vslw 2, 2, 3
; CHECK-NEXT: vsraw 2, 2, 3
; CHECK-NEXT: lvx 3, 0, 3
; CHECK-NEXT: xxsel 34, 36, 35, 34
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 3000, i32 1, i32 -1, i32 0>, <4 x i32> <i32 42, i32 0, i32 -2, i32 -1>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_C1_or_C2_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_C1_or_C2_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: addis 3, 2, .LCPI1_0@toc@ha
; CHECK-NEXT: addis 4, 2, .LCPI1_1@toc@ha
; CHECK-NEXT: addi 3, 3, .LCPI1_0@toc@l
; CHECK-NEXT: addi 4, 4, .LCPI1_1@toc@l
; CHECK-NEXT: lvx 3, 0, 3
; CHECK-NEXT: lvx 4, 0, 4
; CHECK-NEXT: xxsel 34, 36, 35, 34
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 3000, i32 1, i32 -1, i32 0>, <4 x i32> <i32 42, i32 0, i32 -2, i32 -1>
ret <4 x i32> %add
}
define <4 x i32> @sel_Cplus1_or_C_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_Cplus1_or_C_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, 1
; CHECK-NEXT: addis 3, 2, .LCPI2_0@toc@ha
; CHECK-NEXT: addi 3, 3, .LCPI2_0@toc@l
; CHECK-NEXT: xxland 34, 34, 35
; CHECK-NEXT: lvx 3, 0, 3
; CHECK-NEXT: vadduwm 2, 2, 3
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 43, i32 1, i32 -1, i32 0>, <4 x i32> <i32 42, i32 0, i32 -2, i32 -1>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_Cplus1_or_C_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_Cplus1_or_C_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: addis 3, 2, .LCPI3_0@toc@ha
; CHECK-NEXT: addi 3, 3, .LCPI3_0@toc@l
; CHECK-NEXT: lvx 3, 0, 3
; CHECK-NEXT: vsubuwm 2, 3, 2
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 43, i32 1, i32 -1, i32 0>, <4 x i32> <i32 42, i32 0, i32 -2, i32 -1>
ret <4 x i32> %add
}
define <4 x i32> @sel_Cminus1_or_C_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_Cminus1_or_C_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, -16
; CHECK-NEXT: vspltisw 4, 15
; CHECK-NEXT: addis 3, 2, .LCPI4_0@toc@ha
; CHECK-NEXT: addi 3, 3, .LCPI4_0@toc@l
; CHECK-NEXT: vsubuwm 3, 4, 3
; CHECK-NEXT: vslw 2, 2, 3
; CHECK-NEXT: vsraw 2, 2, 3
; CHECK-NEXT: lvx 3, 0, 3
; CHECK-NEXT: vadduwm 2, 2, 3
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 43, i32 1, i32 -1, i32 0>, <4 x i32> <i32 44, i32 2, i32 0, i32 1>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_Cminus1_or_C_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_Cminus1_or_C_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: addis 3, 2, .LCPI5_0@toc@ha
; CHECK-NEXT: addi 3, 3, .LCPI5_0@toc@l
; CHECK-NEXT: lvx 3, 0, 3
; CHECK-NEXT: vadduwm 2, 2, 3
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 43, i32 1, i32 -1, i32 0>, <4 x i32> <i32 44, i32 2, i32 0, i32 1>
ret <4 x i32> %add
}
define <4 x i32> @sel_minus1_or_0_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_minus1_or_0_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, -16
; CHECK-NEXT: vspltisw 4, 15
; CHECK-NEXT: vsubuwm 3, 4, 3
; CHECK-NEXT: vslw 2, 2, 3
; CHECK-NEXT: vsraw 2, 2, 3
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32> <i32 0, i32 0, i32 0, i32 0>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_minus1_or_0_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_minus1_or_0_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32> <i32 0, i32 0, i32 0, i32 0>
ret <4 x i32> %add
}
define <4 x i32> @sel_0_or_minus1_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_0_or_minus1_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, 1
; CHECK-NEXT: xxland 34, 34, 35
; CHECK-NEXT: xxleqv 35, 35, 35
; CHECK-NEXT: vadduwm 2, 2, 3
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_0_or_minus1_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_0_or_minus1_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: xxlnor 34, 34, 34
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>
ret <4 x i32> %add
}
define <4 x i32> @sel_1_or_0_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_1_or_0_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, 1
; CHECK-NEXT: xxland 34, 34, 35
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 1, i32 1, i32 1, i32 1>, <4 x i32> <i32 0, i32 0, i32 0, i32 0>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_1_or_0_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_1_or_0_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: vspltisw 3, 1
; CHECK-NEXT: xxland 34, 34, 35
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 1, i32 1, i32 1, i32 1>, <4 x i32> <i32 0, i32 0, i32 0, i32 0>
ret <4 x i32> %add
}
define <4 x i32> @sel_0_or_1_vec(<4 x i1> %cond) {
; CHECK-LABEL: sel_0_or_1_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vspltisw 3, 1
; CHECK-NEXT: xxlandc 34, 35, 34
; CHECK-NEXT: blr
%add = select <4 x i1> %cond, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
ret <4 x i32> %add
}
define <4 x i32> @cmp_sel_0_or_1_vec(<4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: cmp_sel_0_or_1_vec:
; CHECK: # %bb.0:
; CHECK-NEXT: vcmpequw 2, 2, 3
; CHECK-NEXT: vspltisw 3, 1
; CHECK-NEXT: xxlnor 0, 34, 34
; CHECK-NEXT: xxland 34, 0, 35
; CHECK-NEXT: blr
%cond = icmp eq <4 x i32> %x, %y
%add = select <4 x i1> %cond, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
ret <4 x i32> %add
}