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TheRock/compiler/amd-llvm/llvm/test/CodeGen/Hexagon/hwloop-preh.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

45 lines
1.8 KiB
LLVM

; RUN: llc -mtriple=hexagon -disable-machine-licm -hwloop-spec-preheader=1 < %s | FileCheck %s
; CHECK: loop0
target triple = "hexagon"
define i32 @foo(i32 %x, i32 %n, ptr nocapture %A, ptr nocapture %B) #0 {
entry:
%cmp = icmp sgt i32 %x, 0
br i1 %cmp, label %for.cond.preheader, label %return
for.cond.preheader: ; preds = %entry
%cmp16 = icmp sgt i32 %n, 0
br i1 %cmp16, label %for.body.preheader, label %return
for.body.preheader: ; preds = %for.cond.preheader
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%arrayidx.phi = phi ptr [ %arrayidx.inc, %for.body ], [ %B, %for.body.preheader ]
%arrayidx2.phi = phi ptr [ %arrayidx2.inc, %for.body ], [ %A, %for.body.preheader ]
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%0 = load i32, ptr %arrayidx.phi, align 4, !tbaa !0
%1 = load i32, ptr %arrayidx2.phi, align 4, !tbaa !0
%add = add nsw i32 %1, %0
store i32 %add, ptr %arrayidx2.phi, align 4, !tbaa !0
%inc = add nsw i32 %i.07, 1
%exitcond = icmp eq i32 %inc, %n
%arrayidx.inc = getelementptr i32, ptr %arrayidx.phi, i32 1
%arrayidx2.inc = getelementptr i32, ptr %arrayidx2.phi, i32 1
br i1 %exitcond, label %return.loopexit, label %for.body
return.loopexit: ; preds = %for.body
br label %return
return: ; preds = %return.loopexit, %for.cond.preheader, %entry
%retval.0 = phi i32 [ 2, %entry ], [ 0, %for.cond.preheader ], [ 0, %return.loopexit ]
ret i32 %retval.0
}
!0 = !{!"int", !1}
!1 = !{!"omnipotent char", !2}
!2 = !{!"Simple C/C++ TBAA"}
attributes #0 = { nounwind "target-cpu"="hexagonv60" "target-features"="-hvx" }