1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2 ; RUN: opt < %s -instcombine -S | FileCheck %s 3 4 @g = global i32 0 5 6 ; PR30486 7 define i32 @single_case() { 8 ; CHECK-LABEL: @single_case( 9 ; CHECK-NEXT: switch i32 ptrtoint (i32* @g to i32), label %x [ 10 ; CHECK-NEXT: ] 11 ; CHECK: x: 12 ; CHECK-NEXT: ret i32 0 13 ; 14 switch i32 add (i32 ptrtoint (i32* @g to i32), i32 -1), label %x [] 15 x: 16 ret i32 0 17 } 18 19 define i32 @multiple_cases() { 20 ; CHECK-LABEL: @multiple_cases( 21 ; CHECK-NEXT: switch i32 ptrtoint (i32* @g to i32), label %x [ 22 ; CHECK-NEXT: i32 2, label %one 23 ; CHECK-NEXT: i32 3, label %two 24 ; CHECK-NEXT: ] 25 ; CHECK: x: 26 ; CHECK-NEXT: ret i32 0 27 ; CHECK: one: 28 ; CHECK-NEXT: ret i32 1 29 ; CHECK: two: 30 ; CHECK-NEXT: ret i32 2 31 ; 32 switch i32 add (i32 ptrtoint (i32* @g to i32), i32 -1), label %x [ 33 i32 1, label %one 34 i32 2, label %two 35 ] 36 x: 37 ret i32 0 38 39 one: 40 ret i32 1 41 42 two: 43 ret i32 2 44 } 45
