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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

52 lines
1.7 KiB
LLVM

; RUN: llc -mtriple=hexagon -enable-pipeliner -pipeliner-max-stages=2 < %s -pipeliner-experimental-cg=true | FileCheck %s
; Test that the generatePhi code doesn't rename a a Phi instruction that's defined
; in the same block. The bug causes a Phi to incorrectly depend on another Phi.
; CHECK: loop0(.LBB0_[[LOOP:.]],
; CHECK: .LBB0_[[LOOP]]:
; CHECK: memh([[REG0:(r[0-9]+)]]++#2:circ
; CHECK: = mem{{u?}}h([[REG0]]+#0)
; CHECK: endloop0
; Function Attrs: argmemonly nounwind
declare ptr @llvm.hexagon.circ.sthhi(ptr, i32, i32, i32) #1
; Function Attrs: nounwind optsize
define signext i16 @f0(ptr %a0, ptr %a1, i16 signext %a2, i16 signext %a3) #0 {
b0:
br label %b1
b1: ; preds = %b1, %b0
%v0 = phi ptr [ %v10, %b1 ], [ %a1, %b0 ]
%v1 = phi i32 [ %v13, %b1 ], [ 1, %b0 ]
%v2 = phi i16 [ %v12, %b1 ], [ 0, %b0 ]
%v3 = bitcast ptr %v0 to ptr
%v4 = add nsw i32 %v1, 10
%v5 = getelementptr inbounds i16, ptr %a0, i32 %v4
%v6 = load i16, ptr %v5, align 2, !tbaa !0
%v7 = sext i16 %v6 to i32
%v8 = add nsw i32 %v7, 40000
%v9 = tail call ptr @llvm.hexagon.circ.sthhi(ptr %v3, i32 %v8, i32 117441022, i32 2)
%v10 = bitcast ptr %v9 to ptr
%v11 = load i16, ptr %v10, align 2, !tbaa !0
%v12 = add i16 %v11, %v2
%v13 = add i32 %v1, 1
%v14 = icmp eq i32 %v13, 1000
br i1 %v14, label %b2, label %b1
b2: ; preds = %b1
br label %b3
b3: ; preds = %b2
ret i16 %v12
}
attributes #0 = { nounwind optsize "target-cpu"="hexagonv55" }
attributes #1 = { argmemonly nounwind }
!0 = !{!1, !1, i64 0}
!1 = !{!"short", !2}
!2 = !{!"omnipotent char", !3}
!3 = !{!"Simple C/C++ TBAA"}