1 ; RUN: llc < %s -mtriple=i386-apple-darwin -join-physregs | FileCheck %s 2 ; rdar://5571034 3 4 ; This requires physreg joining, %vreg13 is live everywhere: 5 ; 304L %CL<def> = COPY %vreg13:sub_8bit; GR32_ABCD:%vreg13 6 ; 320L %vreg15<def> = COPY %vreg19; GR32:%vreg15 GR32_NOSP:%vreg19 7 ; 336L %vreg15<def> = SAR32rCL %vreg15, %EFLAGS<imp-def,dead>, %CL<imp-use,kill>; GR32:%vreg15 8 9 define void @foo(i32* nocapture %quadrant, i32* nocapture %ptr, i32 %bbSize, i32 %bbStart, i32 %shifts) nounwind ssp { 10 ; CHECK: foo: 11 entry: 12 %j.03 = add i32 %bbSize, -1 ; <i32> [#uses=2] 13 %0 = icmp sgt i32 %j.03, -1 ; <i1> [#uses=1] 14 br i1 %0, label %bb.nph, label %return 15 16 bb.nph: ; preds = %entry 17 %tmp9 = add i32 %bbStart, %bbSize ; <i32> [#uses=1] 18 %tmp10 = add i32 %tmp9, -1 ; <i32> [#uses=1] 19 br label %bb 20 21 bb: ; preds = %bb, %bb.nph 22 ; CHECK: %bb 23 ; CHECK-NOT: movb {{.*}}l, %cl 24 ; CHECK: sarl %cl 25 %indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb ] ; <i32> [#uses=3] 26 %j.06 = sub i32 %j.03, %indvar ; <i32> [#uses=1] 27 %tmp11 = sub i32 %tmp10, %indvar ; <i32> [#uses=1] 28 %scevgep = getelementptr i32* %ptr, i32 %tmp11 ; <i32*> [#uses=1] 29 %1 = load i32* %scevgep, align 4 ; <i32> [#uses=1] 30 %2 = ashr i32 %j.06, %shifts ; <i32> [#uses=1] 31 %3 = and i32 %2, 65535 ; <i32> [#uses=1] 32 %4 = getelementptr inbounds i32* %quadrant, i32 %1 ; <i32*> [#uses=1] 33 store i32 %3, i32* %4, align 4 34 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2] 35 %exitcond = icmp eq i32 %indvar.next, %bbSize ; <i1> [#uses=1] 36 br i1 %exitcond, label %return, label %bb 37 38 return: ; preds = %bb, %entry 39 ret void 40 } 41
