forked from OSchip/llvm-project
41 lines
1.7 KiB
LLVM
41 lines
1.7 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"
|
|
|
|
; PR5837
|
|
define void @test(i32 %N, double* %G) nounwind ssp {
|
|
entry:
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body, %entry
|
|
%j.0 = phi i64 [ 1, %entry ], [ %inc, %for.body ] ; <i64> [#uses=5]
|
|
%cmp = icmp slt i64 %j.0, 1000 ; <i1> [#uses=1]
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%arrayidx = getelementptr inbounds double* %G, i64 %j.0 ; <double*> [#uses=1]
|
|
%tmp3 = load double* %arrayidx ; <double> [#uses=1]
|
|
%sub = sub i64 %j.0, 1 ; <i64> [#uses=1]
|
|
%arrayidx6 = getelementptr inbounds double* %G, i64 %sub ; <double*> [#uses=1]
|
|
%tmp7 = load double* %arrayidx6 ; <double> [#uses=1]
|
|
%add = fadd double %tmp3, %tmp7 ; <double> [#uses=1]
|
|
%arrayidx10 = getelementptr inbounds double* %G, i64 %j.0 ; <double*> [#uses=1]
|
|
store double %add, double* %arrayidx10
|
|
%inc = add nsw i64 %j.0, 1 ; <i64> [#uses=1]
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|
|
|
|
; Should only end up with one phi.
|
|
; CHECK-LABEL: define void @test(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label %for.body
|
|
; CHECK: for.body:
|
|
; CHECK-NEXT: %j.01 = phi i64
|
|
; CHECK-NOT: br
|
|
; CHECK: br i1 %cmp, label %for.body, label %for.end
|
|
; CHECK: for.end:
|
|
; CHECK-NEXT: ret void
|