derek.holloway
7502bf64a4
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64 lines
2.0 KiB
LLVM
64 lines
2.0 KiB
LLVM
; RUN: opt -S -passes=loop-rotate -verify-memoryssa < %s | FileCheck %s
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; RUN: opt -S -passes='require<target-ir>,require<assumptions>,loop(loop-rotate)' < %s | FileCheck %s
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; RUN: opt -S -passes='require<target-ir>,require<assumptions>,loop-mssa(loop-rotate)' -verify-memoryssa < %s | FileCheck %s
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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"
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target triple = "x86_64-apple-darwin10.0.0"
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; PR5319 - The "arrayidx" gep should be hoisted, not duplicated. We should
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; end up with one phi node.
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define void @test1() nounwind ssp {
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; CHECK-LABEL: @test1(
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entry:
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%array = alloca [20 x i32], align 16
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br label %for.cond
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for.cond: ; preds = %for.body, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%cmp = icmp slt i32 %i.0, 100
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br i1 %cmp, label %for.body, label %for.end
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; CHECK: for.body:
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; CHECK-NEXT: phi i32 [ 0
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; CHECK-NEXT: store i32 0
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for.body: ; preds = %for.cond
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store i32 0, ptr %array, align 16
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end: ; preds = %for.cond
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%arrayidx.lcssa = phi ptr [ %array, %for.cond ]
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call void @g(ptr %arrayidx.lcssa) nounwind
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ret void
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}
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declare void @g(ptr)
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; CHECK-LABEL: @test2(
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define void @test2() nounwind ssp {
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entry:
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%array = alloca [20 x i32], align 16
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br label %for.cond
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for.cond: ; preds = %for.body, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%cmp = icmp slt i32 %i.0, 100
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; CHECK: call void @f
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; CHECK-NOT: call void @f
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call void @f() noduplicate
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br i1 %cmp, label %for.body, label %for.end
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for.body: ; preds = %for.cond
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%inc = add nsw i32 %i.0, 1
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call void @h()
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br label %for.cond
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for.end: ; preds = %for.cond
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ret void
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; CHECK: }
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}
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declare void @f() noduplicate
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declare void @h()
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