Files
clang-p2996/llvm/test/Transforms/SLPVectorizer/SystemZ/minbitwidth-trunc.ll
Alexey Bataev a988821123 [SLP]Keep the original order in the reductions.
The patch tries to keep the original order of the instruction in the
reductions. Previously, two first instructions were switched, giving
reverse order.
The first step to support of the ordered reductions.

Reviewers: RKSimon

Reviewed By: RKSimon

Pull Request: https://github.com/llvm/llvm-project/pull/98025
2024-07-09 12:26:42 -04:00

49 lines
1.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S --passes=slp-vectorizer -mtriple=s390x-unknown-linux -mcpu=z14 < %s | FileCheck %s
define void @test() {
; CHECK-LABEL: define void @test(
; CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[TMP1:%.*]] = zext i8 0 to i32
; CHECK-NEXT: [[TMP2:%.*]] = zext i8 0 to i32
; CHECK-NEXT: [[TMP3:%.*]] = insertelement <4 x i32> <i32 poison, i32 0, i32 0, i32 0>, i32 [[TMP2]], i32 0
; CHECK-NEXT: [[TMP4:%.*]] = select <4 x i1> zeroinitializer, <4 x i32> zeroinitializer, <4 x i32> [[TMP3]]
; CHECK-NEXT: [[TMP5:%.*]] = select i1 false, i32 0, i32 0
; CHECK-NEXT: [[TMP6:%.*]] = select i1 false, i32 0, i32 [[TMP1]]
; CHECK-NEXT: [[TMP7:%.*]] = select i1 false, i32 0, i32 [[TMP2]]
; CHECK-NEXT: [[TMP8:%.*]] = call i32 @llvm.vector.reduce.xor.v4i32(<4 x i32> [[TMP4]])
; CHECK-NEXT: [[OP_RDX:%.*]] = xor i32 [[TMP8]], [[TMP5]]
; CHECK-NEXT: [[OP_RDX1:%.*]] = xor i32 [[TMP6]], [[TMP7]]
; CHECK-NEXT: [[OP_RDX2:%.*]] = xor i32 [[OP_RDX]], [[OP_RDX1]]
; CHECK-NEXT: [[TMP9:%.*]] = trunc i32 [[OP_RDX2]] to i16
; CHECK-NEXT: store i16 [[TMP9]], ptr null, align 2
; CHECK-NEXT: ret void
;
%1 = zext i8 0 to i32
%.not = icmp sgt i32 0, %1
%2 = zext i8 0 to i32
%3 = select i1 %.not, i32 0, i32 0
%4 = zext i8 0 to i32
%.not.1 = icmp sgt i32 0, %4
%5 = zext i8 0 to i32
%6 = select i1 %.not.1, i32 0, i32 %5
%7 = xor i32 %6, %3
%8 = zext i8 0 to i32
%.not.2 = icmp sgt i32 0, %8
%9 = select i1 %.not.2, i32 0, i32 0
%10 = xor i32 %9, %7
%11 = zext i8 0 to i32
%.not.3 = icmp sgt i32 0, %11
%12 = select i1 %.not.3, i32 0, i32 0
%13 = xor i32 %12, %10
%14 = select i1 false, i32 0, i32 0
%15 = xor i32 %14, %13
%16 = select i1 false, i32 0, i32 %2
%17 = xor i32 %16, %15
%18 = select i1 false, i32 0, i32 %5
%19 = xor i32 %18, %17
%20 = trunc i32 %19 to i16
store i16 %20, ptr null, align 2
ret void
}