forked from OSchip/llvm-project
42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; RUN: opt %loadPolly -polly-codegen -S < %s
|
|
;
|
|
; The entry of this scop's simple region (entry.split => for.end) has an trivial
|
|
; PHI node. LCSSA may create such PHI nodes. This is a breakdown of this case in
|
|
; the function 'Laguerre_With_Deflation' of oggenc from LLVM's test-suite.
|
|
;
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
define void @test(i64 %n, float* noalias nonnull %A, float %a) {
|
|
entry:
|
|
br label %entry.split
|
|
|
|
; CHECK-LABEL: %polly.split_new_and_old
|
|
; CHECK-NEXT: store float %a, float* %b.phiops
|
|
|
|
; CHECK-LABEL: polly.stmt.entry.split
|
|
; CHECK-NEXT: %b.phiops.reload = load float, float* %b.phiops
|
|
|
|
entry.split:
|
|
%b = phi float [ %a, %entry ]
|
|
store float %b, float* %A, align 4
|
|
%cmp2 = icmp slt i64 %n, 5
|
|
br i1 %cmp2, label %for.cond, label %for.end
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%i.0 = phi i64 [ 0, %entry.split ], [ %add, %for.inc ]
|
|
%cmp = icmp slt i64 %i.0, %n
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%arrayidx = getelementptr inbounds float, float* %A, i64 %i.0
|
|
store float %a, float* %arrayidx, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %for.body
|
|
%add = add nuw nsw i64 %i.0, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|