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clang-p2996/llvm/test/CodeGen/PowerPC/vsx_shuffle_le.ll
David Green 115c188807 [DAG][PowerPC] Combine shuffle(bitcast(X), Mask) to bitcast(shuffle(X, Mask')) 
If the mask is made up of elements that form a mask in the higher type
we can convert shuffle(bitcast into the bitcast type, simplifying the
instruction sequence. A v4i32 2,3,0,1 for example can be treated as a
1,0 v2i64 shuffle. This helps clean up some of the AArch64 concat load
combines, along with helping simplify a number of other tests.

The PowerPC combine for v16i8 splat vector loads needed some fixes to
keep it working for v16i8 vectors. This improves the handling of v2i64
shuffles to match too, hopefully improving them in general.

Differential Revision: https://reviews.llvm.org/D123801
2022-05-06 10:50:31 +01:00

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mattr=+vsx \
; RUN: -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mcpu=pwr9 -mattr=-power9-vector \
; RUN: -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mcpu=pwr9 -mattr=+vsx \
; RUN: -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s \
; RUN: --check-prefix=CHECK-P9 --implicit-check-not xxswapd
define <2 x double> @test00(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test00:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: xxspltd 34, 0, 0
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test00:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxvdsx 34, 0, 3
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 0, i32 0>
ret <2 x double> %v3
}
define <2 x double> @test01(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test01:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: xxswapd 34, 0
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test01:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 34, 0(3)
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 0, i32 1>
ret <2 x double> %v3
}
define <2 x double> @test02(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test02:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxmrgld 34, 1, 0
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test02:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxmrgld 34, 1, 0
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 0, i32 2>
ret <2 x double> %v3
}
define <2 x double> @test03(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test03:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxpermdi 34, 1, 0, 1
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test03:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxpermdi 34, 1, 0, 1
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 0, i32 3>
ret <2 x double> %v3
}
define <2 x double> @test10(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test10:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 34, 0, 3
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test10:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxvd2x 34, 0, 3
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 1, i32 0>
ret <2 x double> %v3
}
define <2 x double> @test11(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test11:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: xxspltd 34, 0, 1
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test11:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: addi 3, 3, 8
; CHECK-P9-NEXT: lxvdsx 34, 0, 3
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 1, i32 1>
ret <2 x double> %v3
}
define <2 x double> @test12(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test12:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxpermdi 34, 1, 0, 2
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test12:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxpermdi 34, 1, 0, 2
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 1, i32 2>
ret <2 x double> %v3
}
define <2 x double> @test13(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test13:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxmrghd 34, 1, 0
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test13:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxmrghd 34, 1, 0
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 1, i32 3>
ret <2 x double> %v3
}
define <2 x double> @test20(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test20:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxmrgld 34, 0, 1
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test20:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxmrgld 34, 0, 1
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 2, i32 0>
ret <2 x double> %v3
}
define <2 x double> @test21(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test21:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxpermdi 34, 0, 1, 1
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test21:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxpermdi 34, 0, 1, 1
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 2, i32 1>
ret <2 x double> %v3
}
define <2 x double> @test22(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test22:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 4
; CHECK-NEXT: xxspltd 34, 0, 0
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test22:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxvdsx 34, 0, 4
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 2, i32 2>
ret <2 x double> %v3
}
define <2 x double> @test23(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test23:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 4
; CHECK-NEXT: xxswapd 34, 0
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test23:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 34, 0(4)
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 2, i32 3>
ret <2 x double> %v3
}
define <2 x double> @test30(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test30:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxpermdi 34, 0, 1, 2
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test30:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxpermdi 34, 0, 1, 2
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 3, i32 0>
ret <2 x double> %v3
}
define <2 x double> @test31(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test31:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 3
; CHECK-NEXT: lxvd2x 1, 0, 4
; CHECK-NEXT: xxswapd 0, 0
; CHECK-NEXT: xxswapd 1, 1
; CHECK-NEXT: xxmrghd 34, 0, 1
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test31:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxv 0, 0(3)
; CHECK-P9-NEXT: lxv 1, 0(4)
; CHECK-P9-NEXT: xxmrghd 34, 0, 1
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 3, i32 1>
ret <2 x double> %v3
}
define <2 x double> @test32(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test32:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 34, 0, 4
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test32:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: lxvd2x 34, 0, 4
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 3, i32 2>
ret <2 x double> %v3
}
define <2 x double> @test33(<2 x double>* %p1, <2 x double>* %p2) {
; CHECK-LABEL: test33:
; CHECK: # %bb.0:
; CHECK-NEXT: lxvd2x 0, 0, 4
; CHECK-NEXT: xxspltd 34, 0, 1
; CHECK-NEXT: blr
;
; CHECK-P9-LABEL: test33:
; CHECK-P9: # %bb.0:
; CHECK-P9-NEXT: addi 3, 4, 8
; CHECK-P9-NEXT: lxvdsx 34, 0, 3
; CHECK-P9-NEXT: blr
%v1 = load <2 x double>, <2 x double>* %p1
%v2 = load <2 x double>, <2 x double>* %p2
%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <2 x i32> < i32 3, i32 3>
ret <2 x double> %v3
}
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