4a8e6ed2f7
This patch makes SLP and LV emit operations with initial vectors set to poison constant instead of undef. This is a part of efforts for using poison vector instead of undef to represent "doesn't care" vector. The goal is to make nice shufflevector optimizations valid that is currently incorrect due to the tricky interaction between undef and poison (see https://bugs.llvm.org/show_bug.cgi?id=44185 ). Reviewed By: fhahn Differential Revision: https://reviews.llvm.org/D94061
46 lines
2.8 KiB
LLVM
46 lines
2.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -verify -slp-vectorizer -o - -S -mtriple=x86_64-apple-macosx10.13.0 | FileCheck %s
|
|
|
|
@global = local_unnamed_addr global [6 x double] zeroinitializer, align 16
|
|
|
|
define { i64, i64 } @patatino(double %arg) {
|
|
; CHECK-LABEL: @patatino(
|
|
; CHECK-NEXT: bb:
|
|
; CHECK-NEXT: [[TMP0:%.*]] = load <2 x double>, <2 x double>* bitcast ([6 x double]* @global to <2 x double>*), align 16
|
|
; CHECK-NEXT: [[TMP1:%.*]] = load <2 x double>, <2 x double>* bitcast (double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 2) to <2 x double>*), align 16
|
|
; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> poison, double [[ARG:%.*]], i32 0
|
|
; CHECK-NEXT: [[TMP3:%.*]] = insertelement <2 x double> [[TMP2]], double [[ARG]], i32 1
|
|
; CHECK-NEXT: [[TMP4:%.*]] = fmul <2 x double> [[TMP1]], [[TMP3]]
|
|
; CHECK-NEXT: [[TMP5:%.*]] = fadd <2 x double> [[TMP0]], [[TMP4]]
|
|
; CHECK-NEXT: [[TMP6:%.*]] = load <2 x double>, <2 x double>* bitcast (double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 4) to <2 x double>*), align 16
|
|
; CHECK-NEXT: [[TMP7:%.*]] = fadd <2 x double> [[TMP6]], [[TMP5]]
|
|
; CHECK-NEXT: [[TMP8:%.*]] = fptosi <2 x double> [[TMP7]] to <2 x i32>
|
|
; CHECK-NEXT: [[TMP9:%.*]] = sext <2 x i32> [[TMP8]] to <2 x i64>
|
|
; CHECK-NEXT: [[TMP10:%.*]] = extractelement <2 x i64> [[TMP9]], i32 0
|
|
; CHECK-NEXT: [[T16:%.*]] = insertvalue { i64, i64 } undef, i64 [[TMP10]], 0
|
|
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <2 x i64> [[TMP9]], i32 1
|
|
; CHECK-NEXT: [[T17:%.*]] = insertvalue { i64, i64 } [[T16]], i64 [[TMP11]], 1
|
|
; CHECK-NEXT: ret { i64, i64 } [[T17]]
|
|
;
|
|
bb:
|
|
%t = load double, double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 0), align 16
|
|
%t1 = load double, double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 2), align 16
|
|
%t2 = fmul double %t1, %arg
|
|
%t3 = fadd double %t, %t2
|
|
%t4 = load double, double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 4), align 16
|
|
%t5 = fadd double %t4, %t3
|
|
%t6 = fptosi double %t5 to i32
|
|
%t7 = sext i32 %t6 to i64
|
|
%t8 = load double, double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 1), align 8
|
|
%t9 = load double, double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 3), align 8
|
|
%t10 = fmul double %t9, %arg
|
|
%t11 = fadd double %t8, %t10
|
|
%t12 = load double, double* getelementptr inbounds ([6 x double], [6 x double]* @global, i64 0, i64 5), align 8
|
|
%t13 = fadd double %t12, %t11
|
|
%t14 = fptosi double %t13 to i32
|
|
%t15 = sext i32 %t14 to i64
|
|
%t16 = insertvalue { i64, i64 } undef, i64 %t7, 0
|
|
%t17 = insertvalue { i64, i64 } %t16, i64 %t15, 1
|
|
ret { i64, i64 } %t17
|
|
}
|