llvm/test/CodeGen/Hexagon/early-if-spare.ll
Krzysztof Parzyszek 42c0741b0d [Hexagon] Add an early if-conversion pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249423 91177308-0d34-0410-b5e6-96231b3b80d8
2015-10-06 15:49:14 +00:00

58 lines
2.0 KiB
LLVM

; RUN: llc -O2 -mcpu=hexagonv5 < %s | FileCheck %s
; Check if the three stores in the loop were predicated.
; CHECK: if{{.*}}memw
; CHECK: if{{.*}}memw
; CHECK: if{{.*}}memw
target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
target triple = "hexagon"
define void @fred(i32 %n, i32* %bp) nounwind {
entry:
%cmp16 = icmp eq i32 %n, 0
br i1 %cmp16, label %for.end, label %for.body.lr.ph
for.body.lr.ph: ; preds = %entry
%cmp2 = icmp ugt i32 %n, 32
br label %for.body
for.body: ; preds = %for.inc, %for.body.lr.ph
%i.017 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ]
%call = tail call i32 @foo(i32* %bp) nounwind
%call1 = tail call i32 @bar(i32* %bp) nounwind
br i1 %cmp2, label %if.then, label %if.else
if.then: ; preds = %for.body
%arrayidx = getelementptr inbounds i32, i32* %bp, i32 %i.017
store i32 %call, i32* %arrayidx, align 4, !tbaa !0
%add = add i32 %i.017, 2
%arrayidx3 = getelementptr inbounds i32, i32* %bp, i32 %add
store i32 %call1, i32* %arrayidx3, align 4, !tbaa !0
br label %for.inc
if.else: ; preds = %for.body
%or = or i32 %call1, %call
%arrayidx4 = getelementptr inbounds i32, i32* %bp, i32 %i.017
store i32 %or, i32* %arrayidx4, align 4, !tbaa !0
br label %for.inc
for.inc: ; preds = %if.then, %if.else
%inc = add i32 %i.017, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.inc
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
declare i32 @foo(i32*) nounwind
declare i32 @bar(i32*) nounwind
!0 = !{!"int", !1}
!1 = !{!"omnipotent char", !2}
!2 = !{!"Simple C/C++ TBAA"}