1; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s 2; 3; This caused the code generation to generate invalid code as the same BBMap was 4; used for the whole non-affine region. When %add is synthesized for the 5; incoming value of subregion_if first, the code for it was generated into 6; subregion_if, but reused for the incoming value of subregion_exit, although it 7; is not dominated by subregion_if. 8; 9; CHECK-LABEL: polly.stmt.subregion_entry: 10; CHECK: %[[R0:[0-9]*]] = add i32 %n, -2 11; 12; CHECK-LABEL: polly.stmt.subregion_if: 13; CHECK: %[[R1:[0-9]*]] = add i32 %n, -2 14; 15; CHECK-LABEL: polly.stmt.subregion_exit.region_exiting: 16; CHECK: %polly.retval = phi i32 [ %[[R1]], %polly.stmt.subregion_if ], [ %[[R0]], %polly.stmt.subregion_entry ] 17 18define i32 @func(i32 %n){ 19entry: 20 br label %subregion_entry 21 22subregion_entry: 23 %add = add nsw i32 %n, -2 24 %cmp = fcmp ogt float undef, undef 25 br i1 %cmp, label %subregion_if, label %subregion_exit 26 27subregion_if: 28 br label %subregion_exit 29 30subregion_exit: 31 %retval = phi i32 [ %add, %subregion_if ], [ %add, %subregion_entry ] 32 ret i32 %retval 33} 34