1; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-scops -analyze -debug -S < %s 2>&1 | FileCheck %s 2 3; REQUIRES: asserts 4 5; This test case at some point crashed Polly due to a 'division by zero' 6; when trying to fold the constant dimension into outer dimension. 7; We verify that this scop is detected without crash. We also test the 8; output to undertand that the scop has been analyzed, but has also been 9; invalidated due to the zero size dimension. 10 11; CHECK: Assumed Context: 12; CHECK-NEXT: { : false } 13; CHECK-NEXT: Invalid Context: 14; CHECK-NEXT: { : false } 15; CHECK-NEXT: Arrays { 16; CHECK-NEXT: i8 MemRef_arg[*][0]; // Element size 1 17; CHECK-NEXT: } 18; CHECK-NEXT: Arrays (Bounds as pw_affs) { 19; CHECK-NEXT: i8 MemRef_arg[*][ { [] -> [(0)] } ]; // Element size 1 20; CHECK-NEXT: } 21; CHECK-NEXT: Alias Groups (0): 22; CHECK-NEXT: n/a 23; CHECK-NEXT: Statements { 24; CHECK-NEXT: Stmt_bb2 25; CHECK-NEXT: Domain := 26; CHECK-NEXT: { Stmt_bb2[] }; 27; CHECK-NEXT: Schedule := 28; CHECK-NEXT: { Stmt_bb2[] -> [] }; 29; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] 30; CHECK-NEXT: { Stmt_bb2[] -> MemRef_arg[0, 0] }; 31; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] 32; CHECK-NEXT: { Stmt_bb2[] -> MemRef_arg[o0, o1] : false }; 33; CHECK-NEXT: } 34 35target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 36 37declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i32, i1) #0 38 39define void @hoge([0 x [0 x i8]]* noalias %arg) { 40bb: 41 br label %bb1 42 43bb1: ; preds = %bb5, %bb 44 br i1 false, label %bb5, label %bb2 45 46bb2: ; preds = %bb1 47 %tmp = getelementptr [0 x [0 x i8]], [0 x [0 x i8]]* %arg, i64 0, i64 0, i64 0 48 store i8 32, i8* %tmp, align 1 49 %tmp3 = getelementptr [0 x [0 x i8]], [0 x [0 x i8]]* %arg, i64 0, i64 0, i64 0 50 %tmp4 = getelementptr i8, i8* %tmp3, i64 1 51 tail call void @llvm.memset.p0i8.i64(i8* %tmp4, i8 32, i64 0, i32 1, i1 false) 52 br label %bb5 53 54bb5: ; preds = %bb2, %bb1 55 br i1 undef, label %bb6, label %bb1 56 57bb6: ; preds = %bb5 58 ret void 59} 60