forked from OSchip/llvm-project
62 lines
1.8 KiB
LLVM
62 lines
1.8 KiB
LLVM
; RUN: opt -S -loop-rotate < %s | 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"
|
|
target triple = "x86_64-apple-darwin10.0.0"
|
|
|
|
; PR5319 - The "arrayidx" gep should be hoisted, not duplicated. We should
|
|
; end up with one phi node.
|
|
define void @test1() nounwind ssp {
|
|
; CHECK: @test1
|
|
entry:
|
|
%array = alloca [20 x i32], align 16
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
|
%cmp = icmp slt i32 %i.0, 100
|
|
%arrayidx = getelementptr inbounds [20 x i32]* %array, i64 0, i64 0
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: phi i32 [ 0
|
|
; CHECK-NEXT: store i32 0
|
|
|
|
for.body: ; preds = %for.cond
|
|
store i32 0, i32* %arrayidx, align 16
|
|
%inc = add nsw i32 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
%arrayidx.lcssa = phi i32* [ %arrayidx, %for.cond ]
|
|
call void @g(i32* %arrayidx.lcssa) nounwind
|
|
ret void
|
|
}
|
|
|
|
declare void @g(i32*)
|
|
|
|
; CHECK: @test2
|
|
define void @test2() nounwind ssp {
|
|
entry:
|
|
%array = alloca [20 x i32], align 16
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body, %entry
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
|
%cmp = icmp slt i32 %i.0, 100
|
|
; CHECK: call void @f
|
|
; CHECK-NOT: call void @f
|
|
call void @f() noduplicate
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%inc = add nsw i32 %i.0, 1
|
|
call void @h()
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
; CHECK: }
|
|
}
|
|
|
|
declare void @f() noduplicate
|
|
declare void @h()
|