Files
clang-p2996/llvm/test/Transforms/SLPVectorizer/X86/partail.ll
Alexey Bataev a0086add2e [SLP]Improve gathering of scalar elements.
1. Better sorting of scalars to be gathered. Trying to insert
   constants/arguments/instructions-out-of-loop at first and only then
   the instructions which are inside the loop. It improves hoisting of
   invariant insertelements instructions.
2. Better detection of shuffle candidates in gathering function.
3. The cost of insertelement for constants is 0.

Part of D57059.

Differential Revision: https://reviews.llvm.org/D103458
2021-06-09 05:23:21 -07:00

77 lines
4.0 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -slp-vectorizer -S -mtriple=x86_64-unknown-linux-gnu -mcpu=bdver2 < %s | FileCheck %s
; Function Attrs: nounwind uwtable
define void @get_block(i32 %y_pos) local_unnamed_addr #0 {
; CHECK-LABEL: @get_block(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LAND_LHS_TRUE:%.*]]
; CHECK: land.lhs.true:
; CHECK-NEXT: br i1 undef, label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: unreachable
; CHECK: if.end:
; CHECK-NEXT: [[SUB14:%.*]] = sub nsw i32 [[Y_POS:%.*]], undef
; CHECK-NEXT: [[SHR15:%.*]] = ashr i32 [[SUB14]], 2
; CHECK-NEXT: [[TMP0:%.*]] = insertelement <4 x i32> poison, i32 [[SHR15]], i32 0
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x i32> [[TMP0]], i32 [[SUB14]], i32 1
; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP1]], <4 x i32> poison, <4 x i32> <i32 0, i32 1, i32 1, i32 1>
; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt <4 x i32> [[SHUFFLE]], <i32 0, i32 -1, i32 -5, i32 -9>
; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> [[TMP2]], <4 x i32> [[TMP0]], <4 x i32> zeroinitializer
; CHECK-NEXT: [[TMP4:%.*]] = icmp slt <4 x i32> [[TMP3]], poison
; CHECK-NEXT: [[TMP5:%.*]] = select <4 x i1> [[TMP4]], <4 x i32> [[TMP3]], <4 x i32> poison
; CHECK-NEXT: [[TMP6:%.*]] = sext <4 x i32> [[TMP5]] to <4 x i64>
; CHECK-NEXT: [[TMP7:%.*]] = trunc <4 x i64> [[TMP6]] to <4 x i32>
; CHECK-NEXT: [[TMP8:%.*]] = extractelement <4 x i32> [[TMP7]], i32 0
; CHECK-NEXT: [[TMP9:%.*]] = sext i32 [[TMP8]] to i64
; CHECK-NEXT: [[ARRAYIDX31:%.*]] = getelementptr inbounds i16*, i16** undef, i64 [[TMP9]]
; CHECK-NEXT: [[TMP10:%.*]] = extractelement <4 x i32> [[TMP7]], i32 1
; CHECK-NEXT: [[TMP11:%.*]] = sext i32 [[TMP10]] to i64
; CHECK-NEXT: [[ARRAYIDX31_1:%.*]] = getelementptr inbounds i16*, i16** undef, i64 [[TMP11]]
; CHECK-NEXT: [[TMP12:%.*]] = extractelement <4 x i32> [[TMP7]], i32 2
; CHECK-NEXT: [[TMP13:%.*]] = sext i32 [[TMP12]] to i64
; CHECK-NEXT: [[ARRAYIDX31_2:%.*]] = getelementptr inbounds i16*, i16** undef, i64 [[TMP13]]
; CHECK-NEXT: [[TMP14:%.*]] = extractelement <4 x i32> [[TMP7]], i32 3
; CHECK-NEXT: [[TMP15:%.*]] = sext i32 [[TMP14]] to i64
; CHECK-NEXT: [[ARRAYIDX31_3:%.*]] = getelementptr inbounds i16*, i16** undef, i64 [[TMP15]]
; CHECK-NEXT: unreachable
;
entry:
br label %land.lhs.true
land.lhs.true: ; preds = %entry
br i1 undef, label %if.then, label %if.end
if.then: ; preds = %land.lhs.true
unreachable
if.end: ; preds = %land.lhs.true
%sub14 = sub nsw i32 %y_pos, undef
%shr15 = ashr i32 %sub14, 2
%cmp.i.i = icmp sgt i32 %shr15, 0
%cond.i.i = select i1 %cmp.i.i, i32 %shr15, i32 0
%cmp.i4.i = icmp slt i32 %cond.i.i, undef
%cond.i5.i = select i1 %cmp.i4.i, i32 %cond.i.i, i32 undef
%idxprom30 = sext i32 %cond.i5.i to i64
%arrayidx31 = getelementptr inbounds i16*, i16** undef, i64 %idxprom30
%cmp.i.i.1 = icmp sgt i32 %sub14, -1
%cond.i.i.1 = select i1 %cmp.i.i.1, i32 undef, i32 0
%cmp.i4.i.1 = icmp slt i32 %cond.i.i.1, undef
%cond.i5.i.1 = select i1 %cmp.i4.i.1, i32 %cond.i.i.1, i32 undef
%idxprom30.1 = sext i32 %cond.i5.i.1 to i64
%arrayidx31.1 = getelementptr inbounds i16*, i16** undef, i64 %idxprom30.1
%cmp.i.i.2 = icmp sgt i32 %sub14, -5
%cond.i.i.2 = select i1 %cmp.i.i.2, i32 undef, i32 0
%cmp.i4.i.2 = icmp slt i32 %cond.i.i.2, undef
%cond.i5.i.2 = select i1 %cmp.i4.i.2, i32 %cond.i.i.2, i32 undef
%idxprom30.2 = sext i32 %cond.i5.i.2 to i64
%arrayidx31.2 = getelementptr inbounds i16*, i16** undef, i64 %idxprom30.2
%cmp.i.i.3 = icmp sgt i32 %sub14, -9
%cond.i.i.3 = select i1 %cmp.i.i.3, i32 undef, i32 0
%cmp.i4.i.3 = icmp slt i32 %cond.i.i.3, undef
%cond.i5.i.3 = select i1 %cmp.i4.i.3, i32 %cond.i.i.3, i32 undef
%idxprom30.3 = sext i32 %cond.i5.i.3 to i64
%arrayidx31.3 = getelementptr inbounds i16*, i16** undef, i64 %idxprom30.3
unreachable
}