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https://github.com/c64scene-ar/llvm-6502.git
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b89304eb7c
The SLP vectorizer should propagate IR-level optimization hints/flags (nsw, nuw, exact, fast-math) when converting scalar instructions into vectors. But this isn't a simple copy - we need to take the intersection (the logical 'and') of the sets of flags on the scalars. The solution is further complicated because we can have non-uniform (non-SIMD) vector ops after: http://reviews.llvm.org/D4015 http://llvm.org/viewvc/llvm-project?view=revision&revision=211339 The vast majority of changed files are existing tests that were not propagating IR flags, but I've also added a new test file for focused testing of IR flag possibilities. Differential Revision: http://reviews.llvm.org/D5172 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217051 91177308-0d34-0410-b5e6-96231b3b80d8
79 lines
3.0 KiB
LLVM
79 lines
3.0 KiB
LLVM
; RUN: opt < %s -basicaa -slp-vectorizer -S -mtriple=i386-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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;CHECK-LABEL: @foo
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;CHECK: load <4 x i32>
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;CHECK: load <4 x i32>
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;CHECK: %[[S1:.+]] = add nsw <4 x i32>
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;CHECK-DAG: store <4 x i32> %[[S1]]
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;CHECK-DAG: %[[A1:.+]] = add nsw i32
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;CHECK-DAG: %[[A2:.+]] = add nsw i32 %[[A1]]
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;CHECK-DAG: %[[A3:.+]] = add nsw i32 %[[A2]]
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;CHECK-DAG: %[[A4:.+]] = add nsw i32 %[[A3]]
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;CHECK: ret i32 %[[A4]]
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define i32 @foo(i32* nocapture readonly %diff) #0 {
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entry:
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%m2 = alloca [8 x [8 x i32]], align 16
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%0 = bitcast [8 x [8 x i32]]* %m2 to i8*
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br label %for.body
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%a.088 = phi i32 [ 0, %entry ], [ %add52, %for.body ]
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%1 = shl i64 %indvars.iv, 3
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%arrayidx = getelementptr inbounds i32* %diff, i64 %1
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%2 = load i32* %arrayidx, align 4
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%3 = or i64 %1, 4
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%arrayidx2 = getelementptr inbounds i32* %diff, i64 %3
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%4 = load i32* %arrayidx2, align 4
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%add3 = add nsw i32 %4, %2
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%arrayidx6 = getelementptr inbounds [8 x [8 x i32]]* %m2, i64 0, i64 %indvars.iv, i64 0
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store i32 %add3, i32* %arrayidx6, align 16
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%add10 = add nsw i32 %add3, %a.088
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%5 = or i64 %1, 1
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%arrayidx13 = getelementptr inbounds i32* %diff, i64 %5
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%6 = load i32* %arrayidx13, align 4
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%7 = or i64 %1, 5
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%arrayidx16 = getelementptr inbounds i32* %diff, i64 %7
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%8 = load i32* %arrayidx16, align 4
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%add17 = add nsw i32 %8, %6
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%arrayidx20 = getelementptr inbounds [8 x [8 x i32]]* %m2, i64 0, i64 %indvars.iv, i64 1
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store i32 %add17, i32* %arrayidx20, align 4
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%add24 = add nsw i32 %add10, %add17
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%9 = or i64 %1, 2
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%arrayidx27 = getelementptr inbounds i32* %diff, i64 %9
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%10 = load i32* %arrayidx27, align 4
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%11 = or i64 %1, 6
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%arrayidx30 = getelementptr inbounds i32* %diff, i64 %11
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%12 = load i32* %arrayidx30, align 4
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%add31 = add nsw i32 %12, %10
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%arrayidx34 = getelementptr inbounds [8 x [8 x i32]]* %m2, i64 0, i64 %indvars.iv, i64 2
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store i32 %add31, i32* %arrayidx34, align 8
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%add38 = add nsw i32 %add24, %add31
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%13 = or i64 %1, 3
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%arrayidx41 = getelementptr inbounds i32* %diff, i64 %13
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%14 = load i32* %arrayidx41, align 4
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%15 = or i64 %1, 7
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%arrayidx44 = getelementptr inbounds i32* %diff, i64 %15
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%16 = load i32* %arrayidx44, align 4
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%add45 = add nsw i32 %16, %14
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%arrayidx48 = getelementptr inbounds [8 x [8 x i32]]* %m2, i64 0, i64 %indvars.iv, i64 3
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store i32 %add45, i32* %arrayidx48, align 4
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%add52 = add nsw i32 %add38, %add45
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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, 8
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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%arraydecay = getelementptr inbounds [8 x [8 x i32]]* %m2, i64 0, i64 0
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call void @ff([8 x i32]* %arraydecay) #1
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ret i32 %add52
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}
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declare void @ff([8 x i32]*) #2
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