; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 6 ; RUN: opt < %s -disable-output "-passes=print" 2>&1 \ ; RUN: | FileCheck %s --check-prefixes=CHECK,CHECK-ALL ; RUN: opt < %s -disable-output "-passes=print" -da-enable-dependence-test=exact-siv 2>&1 \ ; RUN: | FileCheck %s --check-prefixes=CHECK,CHECK-EXACT-SIV ; a = 6148914691236517210; // 6148914691236517210 = ((2^64) - 1) / 3 + 5 ; for (i = 0; i < 10; i++) { ; if (0 <=s a*i) ; A[a*i] = 0; ; ; A[5*i + 14] = 1; ; } ; ; The dependency exists between the two stores, for example, ; ; memory access | i == 0 | i == 3 ; ---------------|--------|-------- ; A[a*i] | | A[14] ; A[5*i + 14] | A[14] | ; define void @exact_siv_no_nsw(ptr %A) { ; CHECK-LABEL: 'exact_siv_no_nsw' ; CHECK-NEXT: Src: store i8 0, ptr %gep.0, align 1 --> Dst: store i8 0, ptr %gep.0, align 1 ; CHECK-NEXT: da analyze - output [*]! ; CHECK-NEXT: Src: store i8 0, ptr %gep.0, align 1 --> Dst: store i8 1, ptr %gep.1, align 1 ; CHECK-NEXT: da analyze - output [*|<]! ; CHECK-NEXT: Src: store i8 1, ptr %gep.1, align 1 --> Dst: store i8 1, ptr %gep.1, align 1 ; CHECK-NEXT: da analyze - none! ; entry: br label %loop.header loop.header: %i = phi i64 [ 0, %entry ], [ %i.inc, %loop.latch ] %offset.0 = phi i64 [ 0, %entry ], [ %offset.0.next, %loop.latch ] %offset.1 = phi i64 [ 14, %entry ], [ %offset.1.next, %loop.latch ] %cond = icmp sge i64 %offset.0, 0 br i1 %cond, label %if.then, label %loop.latch if.then: %gep.0 = getelementptr i8, ptr %A, i64 %offset.0 store i8 0, ptr %gep.0 br label %loop.latch loop.latch: %gep.1 = getelementptr i8, ptr %A, i64 %offset.1 store i8 1, ptr %gep.1 %i.inc = add i64 %i, 1 %offset.0.next = add i64 %offset.0, 6148914691236517210 %offset.1.next = add i64 %offset.1, 5 %ec = icmp eq i64 %i.inc, 10 br i1 %ec, label %exit, label %loop.header exit: ret void } ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line: ; CHECK-ALL: {{.*}} ; CHECK-EXACT-SIV: {{.*}}