; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 3 ; RUN: opt -passes='print' -disable-output < %s 2>&1 | FileCheck %s %s1 = type { [32000 x double], [32000 x double], [32000 x double] } define i32 @load_with_pointer_phi_no_runtime_checks(ptr %data) { ; CHECK-LABEL: 'load_with_pointer_phi_no_runtime_checks' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Memory dependences are safe ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Grouped accesses: ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] %iv.next = add nuw nsw i64 %iv, 1 %cmp5 = icmp ult i64 %iv, 15999 %arrayidx = getelementptr inbounds %s1, ptr %data, i64 0, i32 0, i64 %iv br i1 %cmp5, label %if.then, label %if.else if.then: ; preds = %loop.header %gep.1 = getelementptr inbounds %s1, ptr %data, i64 0, i32 1, i64 %iv br label %loop.latch if.else: ; preds = %loop.header %gep.2 = getelementptr inbounds %s1, ptr %data, i64 0, i32 2, i64 %iv br label %loop.latch loop.latch: ; preds = %if.else, %if.then %gep.2.sink = phi ptr [ %gep.2, %if.else ], [ %gep.1, %if.then ] %v8 = load double, ptr %gep.2.sink, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %arrayidx, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @store_with_pointer_phi_no_runtime_checks(ptr %data) { ; CHECK-LABEL: 'store_with_pointer_phi_no_runtime_checks' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Memory dependences are safe ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Grouped accesses: ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] %iv.next = add nuw nsw i64 %iv, 1 %cmp5 = icmp ult i64 %iv, 15999 %arrayidx = getelementptr inbounds %s1, ptr %data, i64 0, i32 0, i64 %iv br i1 %cmp5, label %if.then, label %if.else if.then: ; preds = %loop.header %gep.1 = getelementptr inbounds %s1, ptr %data, i64 0, i32 1, i64 %iv br label %loop.latch if.else: ; preds = %loop.header %gep.2 = getelementptr inbounds %s1, ptr %data, i64 0, i32 2, i64 %iv br label %loop.latch loop.latch: ; preds = %if.else, %if.then %gep.2.sink = phi ptr [ %gep.2, %if.else ], [ %gep.1, %if.then ] %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %gep.2.sink, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @store_with_pointer_phi_runtime_checks(ptr %A, ptr %B, ptr %C) { ; CHECK-LABEL: 'store_with_pointer_phi_runtime_checks' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Memory dependences are safe with run-time checks ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Check 0: ; CHECK-NEXT: Comparing group ([[GRP1:0x[0-9a-f]+]]): ; CHECK-NEXT: %gep.1 = getelementptr inbounds double, ptr %B, i64 %iv ; CHECK-NEXT: Against group ([[GRP2:0x[0-9a-f]+]]): ; CHECK-NEXT: %gep.2 = getelementptr inbounds double, ptr %C, i64 %iv ; CHECK-NEXT: Check 1: ; CHECK-NEXT: Comparing group ([[GRP1]]): ; CHECK-NEXT: %gep.1 = getelementptr inbounds double, ptr %B, i64 %iv ; CHECK-NEXT: Against group ([[GRP3:0x[0-9a-f]+]]): ; CHECK-NEXT: %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv ; CHECK-NEXT: Check 2: ; CHECK-NEXT: Comparing group ([[GRP2]]): ; CHECK-NEXT: %gep.2 = getelementptr inbounds double, ptr %C, i64 %iv ; CHECK-NEXT: Against group ([[GRP3]]): ; CHECK-NEXT: %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv ; CHECK-NEXT: Grouped accesses: ; CHECK-NEXT: Group [[GRP1]]: ; CHECK-NEXT: (Low: %B High: (256000 + %B)) ; CHECK-NEXT: Member: {%B,+,8}<%loop.header> ; CHECK-NEXT: Group [[GRP2]]: ; CHECK-NEXT: (Low: %C High: (256000 + %C)) ; CHECK-NEXT: Member: {%C,+,8}<%loop.header> ; CHECK-NEXT: Group [[GRP3]]: ; CHECK-NEXT: (Low: %A High: (256000 + %A)) ; CHECK-NEXT: Member: {%A,+,8}<%loop.header> ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] %iv.next = add nuw nsw i64 %iv, 1 %cmp5 = icmp ult i64 %iv, 15999 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv br i1 %cmp5, label %if.then, label %if.else if.then: ; preds = %loop.header %gep.1 = getelementptr inbounds double, ptr %B, i64 %iv br label %loop.latch if.else: ; preds = %loop.header %gep.2 = getelementptr inbounds double, ptr %C, i64 %iv br label %loop.latch loop.latch: ; preds = %if.else, %if.then %gep.2.sink = phi ptr [ %gep.2, %if.else ], [ %gep.1, %if.then ] %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %gep.2.sink, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @load_with_pointer_phi_outside_loop(ptr %A, ptr %B, ptr %C, i1 %c.0, i1 %c.1) { ; CHECK-LABEL: 'load_with_pointer_phi_outside_loop' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop ; CHECK-NEXT: Unknown data dependence. ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %v8 = load double, ptr %ptr, align 8 -> ; CHECK-NEXT: store double %mul16, ptr %arrayidx, align 8 ; CHECK-EMPTY: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Grouped accesses: ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br i1 %c.0, label %if.then, label %if.else if.then: br label %loop.ph if.else: %ptr.select = select i1 %c.1, ptr %C, ptr %B br label %loop.ph loop.ph: %ptr = phi ptr [ %A, %if.then ], [ %ptr.select, %if.else ] br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %loop.ph ], [ %iv.next, %loop.header ] %iv.next = add nuw nsw i64 %iv, 1 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv %v8 = load double, ptr %ptr, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %arrayidx, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @store_with_pointer_phi_outside_loop(ptr %A, ptr %B, ptr %C, i1 %c.0, i1 %c.1) { ; CHECK-LABEL: 'store_with_pointer_phi_outside_loop' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop ; CHECK-NEXT: Unknown data dependence. ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %v8 = load double, ptr %arrayidx, align 8 -> ; CHECK-NEXT: store double %mul16, ptr %ptr, align 8 ; CHECK-EMPTY: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Grouped accesses: ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br i1 %c.0, label %if.then, label %if.else if.then: br label %loop.ph if.else: %ptr.select = select i1 %c.1, ptr %C, ptr %B br label %loop.ph loop.ph: %ptr = phi ptr [ %A, %if.then ], [ %ptr.select, %if.else ] br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %loop.ph ], [ %iv.next, %loop.header ] %iv.next = add nuw nsw i64 %iv, 1 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %ptr, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @store_with_pointer_phi_incoming_phi(ptr %A, ptr %B, ptr %C, i1 %c.0, i1 %c.1) { ; CHECK-LABEL: 'store_with_pointer_phi_incoming_phi' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop ; CHECK-NEXT: Unknown data dependence. ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %v8 = load double, ptr %arrayidx, align 8 -> ; CHECK-NEXT: store double %mul16, ptr %ptr.2, align 8 ; CHECK-EMPTY: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Check 0: ; CHECK-NEXT: Comparing group ([[GRP4:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %C ; CHECK-NEXT: Against group ([[GRP5:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %B ; CHECK-NEXT: Check 1: ; CHECK-NEXT: Comparing group ([[GRP4]]): ; CHECK-NEXT: ptr %C ; CHECK-NEXT: Against group ([[GRP6:0x[0-9a-f]+]]): ; CHECK-NEXT: %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv ; CHECK-NEXT: ptr %A ; CHECK-NEXT: Check 2: ; CHECK-NEXT: Comparing group ([[GRP5]]): ; CHECK-NEXT: ptr %B ; CHECK-NEXT: Against group ([[GRP6]]): ; CHECK-NEXT: %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv ; CHECK-NEXT: ptr %A ; CHECK-NEXT: Grouped accesses: ; CHECK-NEXT: Group [[GRP4]]: ; CHECK-NEXT: (Low: %C High: (8 + %C)) ; CHECK-NEXT: Member: %C ; CHECK-NEXT: Group [[GRP5]]: ; CHECK-NEXT: (Low: %B High: (8 + %B)) ; CHECK-NEXT: Member: %B ; CHECK-NEXT: Group [[GRP6]]: ; CHECK-NEXT: (Low: %A High: (256000 + %A)) ; CHECK-NEXT: Member: {%A,+,8}<%loop.header> ; CHECK-NEXT: Member: %A ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; ; CHECK-EMPTY entry: br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] %iv.next = add nuw nsw i64 %iv, 1 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 br i1 %c.0, label %loop.then, label %loop.latch loop.then: br i1 %c.0, label %loop.then.2, label %loop.else.2 loop.then.2: br label %merge.2 loop.else.2: br label %merge.2 merge.2: %ptr = phi ptr [ %A, %loop.then.2 ], [ %B, %loop.else.2 ] br label %loop.latch loop.latch: %ptr.2 = phi ptr [ %ptr, %merge.2], [ %C, %loop.header ] store double %mul16, ptr %ptr.2, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } ; Test cases with pointer phis forming a cycle. define i32 @store_with_pointer_phi_incoming_phi_irreducible_cycle(ptr %A, ptr %B, ptr %C, i1 %c.0, i1 %c.1) { ; CHECK-LABEL: 'store_with_pointer_phi_incoming_phi_irreducible_cycle' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop ; CHECK-NEXT: Unknown data dependence. ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %v8 = load double, ptr %arrayidx, align 8 -> ; CHECK-NEXT: store double %mul16, ptr %ptr.3, align 8 ; CHECK-EMPTY: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Check 0: ; CHECK-NEXT: Comparing group ([[GRP7:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %C ; CHECK-NEXT: Against group ([[GRP8:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %B ; CHECK-NEXT: Check 1: ; CHECK-NEXT: Comparing group ([[GRP7]]): ; CHECK-NEXT: ptr %C ; CHECK-NEXT: Against group ([[GRP9:0x[0-9a-f]+]]): ; CHECK-NEXT: %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv ; CHECK-NEXT: ptr %A ; CHECK-NEXT: Check 2: ; CHECK-NEXT: Comparing group ([[GRP8]]): ; CHECK-NEXT: ptr %B ; CHECK-NEXT: Against group ([[GRP9]]): ; CHECK-NEXT: %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv ; CHECK-NEXT: ptr %A ; CHECK-NEXT: Grouped accesses: ; CHECK-NEXT: Group [[GRP7]]: ; CHECK-NEXT: (Low: %C High: (8 + %C)) ; CHECK-NEXT: Member: %C ; CHECK-NEXT: Group [[GRP8]]: ; CHECK-NEXT: (Low: %B High: (8 + %B)) ; CHECK-NEXT: Member: %B ; CHECK-NEXT: Group [[GRP9]]: ; CHECK-NEXT: (Low: %A High: (256000 + %A)) ; CHECK-NEXT: Member: {%A,+,8}<%loop.header> ; CHECK-NEXT: Member: %A ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; ; CHECK-EMPTY entry: br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] %iv.next = add nuw nsw i64 %iv, 1 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 br i1 %c.0, label %loop.then, label %loop.latch loop.then: br i1 %c.0, label %BB.A, label %BB.B BB.A: %ptr = phi ptr [ %A, %loop.then ], [ %ptr.2, %BB.B ] br label %BB.B BB.B: %ptr.2 = phi ptr [ %ptr, %BB.A ], [ %B, %loop.then ] br i1 %c.1, label %loop.latch, label %BB.A loop.latch: %ptr.3 = phi ptr [ %ptr.2, %BB.B ], [ %C, %loop.header ] store double %mul16, ptr %ptr.3, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @store_with_pointer_phi_outside_loop_select(ptr %A, ptr %B, ptr %C, i1 %c.0, i1 %c.1) { ; CHECK-LABEL: 'store_with_pointer_phi_outside_loop_select' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop ; CHECK-NEXT: Unknown data dependence. ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %v8 = load double, ptr %arrayidx, align 8 -> ; CHECK-NEXT: store double %mul16, ptr %ptr, align 8 ; CHECK-EMPTY: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Grouped accesses: ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br i1 %c.0, label %if.then, label %if.else if.then: br label %loop.ph if.else: %ptr.select = select i1 %c.1, ptr %C, ptr %B br label %loop.ph loop.ph: %ptr = phi ptr [ %A, %if.then ], [ %ptr.select, %if.else ] br label %loop.header loop.header: ; preds = %loop.latch, %entry %iv = phi i64 [ 0, %loop.ph ], [ %iv.next, %loop.header ] %iv.next = add nuw nsw i64 %iv, 1 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %ptr, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define i32 @store_with_pointer_phi_in_same_bb_use_other_phi(ptr %A, ptr %B, ptr %C, ptr %D, i1 %c.0, i1 %c.1) { ; CHECK-LABEL: 'store_with_pointer_phi_in_same_bb_use_other_phi' ; CHECK-NEXT: loop.header: ; CHECK-NEXT: Report: cannot identify array bounds ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Grouped accesses: ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were not found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br label %loop.header loop.header: ; preds = %loop.latch, %entry %ptr.0 = phi ptr [ %C, %entry ], [ %D, %loop.header ] %ptr.1 = phi ptr [ %B, %entry ], [ %ptr.0, %loop.header ] %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.header ] %iv.next = add nuw nsw i64 %iv, 1 %arrayidx = getelementptr inbounds double, ptr %A, i64 %iv %v8 = load double, ptr %arrayidx, align 8 %mul16 = fmul double 3.0, %v8 store double %mul16, ptr %ptr.1, align 8 %exitcond.not = icmp eq i64 %iv.next, 32000 br i1 %exitcond.not, label %exit, label %loop.header exit: ; preds = %loop.latch ret i32 10 } define void @phi_load_store_memdep_check(i1 %c, ptr %A, ptr %B, ptr %C) { ; CHECK-LABEL: 'phi_load_store_memdep_check' ; CHECK-NEXT: for.body: ; CHECK-NEXT: Report: unsafe dependent memory operations in loop. Use #pragma clang loop distribute(enable) to allow loop distribution to attempt to isolate the offending operations into a separate loop ; CHECK-NEXT: Unknown data dependence. ; CHECK-NEXT: Dependences: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %lv3 = load i16, ptr %c.sink, align 2 -> ; CHECK-NEXT: store i16 %add, ptr %c.sink, align 1 ; CHECK-EMPTY: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %lv3 = load i16, ptr %c.sink, align 2 -> ; CHECK-NEXT: store i16 %add, ptr %c.sink, align 1 ; CHECK-EMPTY: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: %lv = load i16, ptr %A, align 1 -> ; CHECK-NEXT: store i16 %lv, ptr %A, align 1 ; CHECK-EMPTY: ; CHECK-NEXT: Unknown: ; CHECK-NEXT: store i16 %lv, ptr %A, align 1 -> ; CHECK-NEXT: %lv2 = load i16, ptr %A, align 1 ; CHECK-EMPTY: ; CHECK-NEXT: Run-time memory checks: ; CHECK-NEXT: Check 0: ; CHECK-NEXT: Comparing group ([[GRP10:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %A ; CHECK-NEXT: ptr %A ; CHECK-NEXT: Against group ([[GRP11:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %C ; CHECK-NEXT: ptr %C ; CHECK-NEXT: Check 1: ; CHECK-NEXT: Comparing group ([[GRP10]]): ; CHECK-NEXT: ptr %A ; CHECK-NEXT: ptr %A ; CHECK-NEXT: Against group ([[GRP12:0x[0-9a-f]+]]): ; CHECK-NEXT: ptr %B ; CHECK-NEXT: ptr %B ; CHECK-NEXT: Check 2: ; CHECK-NEXT: Comparing group ([[GRP11]]): ; CHECK-NEXT: ptr %C ; CHECK-NEXT: ptr %C ; CHECK-NEXT: Against group ([[GRP12]]): ; CHECK-NEXT: ptr %B ; CHECK-NEXT: ptr %B ; CHECK-NEXT: Grouped accesses: ; CHECK-NEXT: Group [[GRP10]]: ; CHECK-NEXT: (Low: %A High: (2 + %A)) ; CHECK-NEXT: Member: %A ; CHECK-NEXT: Member: %A ; CHECK-NEXT: Group [[GRP11]]: ; CHECK-NEXT: (Low: %C High: (2 + %C)) ; CHECK-NEXT: Member: %C ; CHECK-NEXT: Member: %C ; CHECK-NEXT: Group [[GRP12]]: ; CHECK-NEXT: (Low: %B High: (2 + %B)) ; CHECK-NEXT: Member: %B ; CHECK-NEXT: Member: %B ; CHECK-EMPTY: ; CHECK-NEXT: Non vectorizable stores to invariant address were found in loop. ; CHECK-NEXT: SCEV assumptions: ; CHECK-EMPTY: ; CHECK-NEXT: Expressions re-written: ; entry: br label %for.body for.body: ; preds = %if.end, %entry %iv = phi i16 [ 0, %entry ], [ %iv.next, %if.end ] %lv = load i16, ptr %A, align 1 store i16 %lv, ptr %A, align 1 br i1 %c, label %if.then, label %if.end if.then: ; preds = %for.body %lv2 = load i16, ptr %A, align 1 br label %if.end if.end: ; preds = %if.then, %for.body %c.sink = phi ptr [ %B, %if.then ], [ %C, %for.body ] %lv3 = load i16, ptr %c.sink %add = add i16 %lv3, 10 store i16 %add, ptr %c.sink, align 1 %iv.next = add nuw nsw i16 %iv, 1 %tobool.not = icmp eq i16 %iv.next, 1000 br i1 %tobool.not, label %for.end.loopexit, label %for.body for.end.loopexit: ; preds = %if.end ret void }