79997a24d7
For instructions in uniform set, they will not have vector versions so add them to VecValuesToIgnore. For induction vars, those only used in uniform instructions or consecutive ptrs instructions have already been added to VecValuesToIgnore above. For those induction vars which are only used in uniform instructions or non-consecutive/non-gather scatter ptr instructions, the related phi and update will also be added into VecValuesToIgnore set. The change will make the vector RegUsages estimation less conservative. Differential Revision: https://reviews.llvm.org/D20474 The recommit fixed the testcase global_alias.ll. llvm-svn: 275936
52 lines
2.3 KiB
LLVM
52 lines
2.3 KiB
LLVM
; RUN: opt < %s -mcpu=pwr7 -mattr=+vsx -loop-vectorize -instcombine -S | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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%struct.GlobalData = type { [32000 x float], [3 x i32], [4 x i8], [32000 x float], [5 x i32], [12 x i8], [32000 x float], [7 x i32], [4 x i8], [32000 x float], [11 x i32], [4 x i8], [32000 x float], [13 x i32], [12 x i8], [256 x [256 x float]], [17 x i32], [12 x i8], [256 x [256 x float]], [19 x i32], [4 x i8], [256 x [256 x float]], [23 x i32], [4 x i8], [256 x [256 x float]] }
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@global_data = external global %struct.GlobalData, align 16
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@ntimes = external hidden unnamed_addr global i32, align 4
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define signext i32 @s173() #0 {
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entry:
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%0 = load i32, i32* @ntimes, align 4
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%cmp21 = icmp sgt i32 %0, 0
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br i1 %cmp21, label %for.cond1.preheader, label %for.end12
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for.cond1.preheader: ; preds = %for.end, %entry
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%nl.022 = phi i32 [ %inc11, %for.end ], [ 0, %entry ]
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br label %for.body3
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for.body3: ; preds = %for.body3, %for.cond1.preheader
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%indvars.iv = phi i64 [ 0, %for.cond1.preheader ], [ %indvars.iv.next, %for.body3 ]
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%arrayidx = getelementptr inbounds %struct.GlobalData, %struct.GlobalData* @global_data, i64 0, i32 0, i64 %indvars.iv
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%1 = load float, float* %arrayidx, align 4
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%arrayidx5 = getelementptr inbounds %struct.GlobalData, %struct.GlobalData* @global_data, i64 0, i32 3, i64 %indvars.iv
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%2 = load float, float* %arrayidx5, align 4
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%add = fadd float %1, %2
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%3 = add nsw i64 %indvars.iv, 16000
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%arrayidx8 = getelementptr inbounds %struct.GlobalData, %struct.GlobalData* @global_data, i64 0, i32 0, i64 %3
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store float %add, float* %arrayidx8, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 16000
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br i1 %exitcond, label %for.end, label %for.body3
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for.end: ; preds = %for.body3
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%inc11 = add nsw i32 %nl.022, 1
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%4 = load i32, i32* @ntimes, align 4
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%mul = mul nsw i32 %4, 10
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%cmp = icmp slt i32 %inc11, %mul
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br i1 %cmp, label %for.cond1.preheader, label %for.end12
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for.end12: ; preds = %for.end, %entry
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ret i32 0
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; CHECK-LABEL: @s173
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; CHECK: load <4 x float>, <4 x float>*
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; CHECK: add i64 %index, 16000
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; CHECK: ret i32 0
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}
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attributes #0 = { nounwind }
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