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
103 lines
5.1 KiB
LLVM
103 lines
5.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -basic-aa -slp-vectorizer -S -mcpu=corei7-avx | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.8.0"
|
|
|
|
define i32 @foo(i32* nocapture %A, i32 %n) {
|
|
; CHECK-LABEL: @foo(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[CMP62:%.*]] = icmp sgt i32 [[N:%.*]], 0
|
|
; CHECK-NEXT: br i1 [[CMP62]], label [[FOR_BODY:%.*]], label [[FOR_END:%.*]]
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
|
|
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDVARS_IV]]
|
|
; CHECK-NEXT: [[TMP0:%.*]] = or i64 [[INDVARS_IV]], 1
|
|
; CHECK-NEXT: [[ARRAYIDX4:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP0]]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = or i64 [[INDVARS_IV]], 2
|
|
; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP1]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = or i64 [[INDVARS_IV]], 3
|
|
; CHECK-NEXT: [[ARRAYIDX12:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP2]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = or i64 [[INDVARS_IV]], 4
|
|
; CHECK-NEXT: [[ARRAYIDX16:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP3]]
|
|
; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[INDVARS_IV]], 5
|
|
; CHECK-NEXT: [[ARRAYIDX20:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP4]]
|
|
; CHECK-NEXT: [[TMP5:%.*]] = or i64 [[INDVARS_IV]], 6
|
|
; CHECK-NEXT: [[ARRAYIDX24:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP5]]
|
|
; CHECK-NEXT: [[TMP6:%.*]] = or i64 [[INDVARS_IV]], 7
|
|
; CHECK-NEXT: [[ARRAYIDX28:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP6]]
|
|
; CHECK-NEXT: [[TMP7:%.*]] = bitcast i32* [[ARRAYIDX]] to <8 x i32>*
|
|
; CHECK-NEXT: [[TMP8:%.*]] = load <8 x i32>, <8 x i32>* [[TMP7]], align 4
|
|
; CHECK-NEXT: [[TMP9:%.*]] = insertelement <8 x i32> poison, i32 [[N]], i32 0
|
|
; CHECK-NEXT: [[TMP10:%.*]] = insertelement <8 x i32> [[TMP9]], i32 [[N]], i32 1
|
|
; CHECK-NEXT: [[TMP11:%.*]] = insertelement <8 x i32> [[TMP10]], i32 [[N]], i32 2
|
|
; CHECK-NEXT: [[TMP12:%.*]] = insertelement <8 x i32> [[TMP11]], i32 [[N]], i32 3
|
|
; CHECK-NEXT: [[TMP13:%.*]] = insertelement <8 x i32> [[TMP12]], i32 [[N]], i32 4
|
|
; CHECK-NEXT: [[TMP14:%.*]] = insertelement <8 x i32> [[TMP13]], i32 [[N]], i32 5
|
|
; CHECK-NEXT: [[TMP15:%.*]] = insertelement <8 x i32> [[TMP14]], i32 [[N]], i32 6
|
|
; CHECK-NEXT: [[TMP16:%.*]] = insertelement <8 x i32> [[TMP15]], i32 [[N]], i32 7
|
|
; CHECK-NEXT: [[TMP17:%.*]] = add nsw <8 x i32> [[TMP8]], [[TMP16]]
|
|
; CHECK-NEXT: [[TMP18:%.*]] = bitcast i32* [[ARRAYIDX]] to <8 x i32>*
|
|
; CHECK-NEXT: store <8 x i32> [[TMP17]], <8 x i32>* [[TMP18]], align 4
|
|
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add i64 [[INDVARS_IV]], 8
|
|
; CHECK-NEXT: [[TMP19:%.*]] = trunc i64 [[INDVARS_IV_NEXT]] to i32
|
|
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[TMP19]], [[N]]
|
|
; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END]]
|
|
; CHECK: for.end:
|
|
; CHECK-NEXT: ret i32 undef
|
|
;
|
|
entry:
|
|
%cmp62 = icmp sgt i32 %n, 0
|
|
br i1 %cmp62, label %for.body, label %for.end
|
|
|
|
for.body:
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
%add1 = add nsw i32 %0, %n
|
|
store i32 %add1, i32* %arrayidx, align 4
|
|
%1 = or i64 %indvars.iv, 1
|
|
%arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %1
|
|
%2 = load i32, i32* %arrayidx4, align 4
|
|
%add5 = add nsw i32 %2, %n
|
|
store i32 %add5, i32* %arrayidx4, align 4
|
|
%3 = or i64 %indvars.iv, 2
|
|
%arrayidx8 = getelementptr inbounds i32, i32* %A, i64 %3
|
|
%4 = load i32, i32* %arrayidx8, align 4
|
|
%add9 = add nsw i32 %4, %n
|
|
store i32 %add9, i32* %arrayidx8, align 4
|
|
%5 = or i64 %indvars.iv, 3
|
|
%arrayidx12 = getelementptr inbounds i32, i32* %A, i64 %5
|
|
%6 = load i32, i32* %arrayidx12, align 4
|
|
%add13 = add nsw i32 %6, %n
|
|
store i32 %add13, i32* %arrayidx12, align 4
|
|
%7 = or i64 %indvars.iv, 4
|
|
%arrayidx16 = getelementptr inbounds i32, i32* %A, i64 %7
|
|
%8 = load i32, i32* %arrayidx16, align 4
|
|
%add17 = add nsw i32 %8, %n
|
|
store i32 %add17, i32* %arrayidx16, align 4
|
|
%9 = or i64 %indvars.iv, 5
|
|
%arrayidx20 = getelementptr inbounds i32, i32* %A, i64 %9
|
|
%10 = load i32, i32* %arrayidx20, align 4
|
|
%add21 = add nsw i32 %10, %n
|
|
store i32 %add21, i32* %arrayidx20, align 4
|
|
%11 = or i64 %indvars.iv, 6
|
|
%arrayidx24 = getelementptr inbounds i32, i32* %A, i64 %11
|
|
%12 = load i32, i32* %arrayidx24, align 4
|
|
%add25 = add nsw i32 %12, %n
|
|
store i32 %add25, i32* %arrayidx24, align 4
|
|
%13 = or i64 %indvars.iv, 7
|
|
%arrayidx28 = getelementptr inbounds i32, i32* %A, i64 %13
|
|
%14 = load i32, i32* %arrayidx28, align 4
|
|
%add29 = add nsw i32 %14, %n
|
|
store i32 %add29, i32* %arrayidx28, align 4
|
|
%indvars.iv.next = add i64 %indvars.iv, 8
|
|
%15 = trunc i64 %indvars.iv.next to i32
|
|
%cmp = icmp slt i32 %15, %n
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret i32 undef
|
|
}
|
|
|