Daniel Dunbar | a572887 | 2009-12-15 20:14:24 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple i386-unknown-unknown -O3 %s -emit-llvm -o - | FileCheck %s |
Devang Patel | 51b09f2 | 2007-10-04 23:45:31 +0000 | [diff] [blame] | 2 | |
| 3 | int foo(int i) { |
| 4 | int j = 0; |
| 5 | switch (i) { |
Chris Lattner | c69a581 | 2007-11-30 17:44:57 +0000 | [diff] [blame] | 6 | case -1: |
| 7 | j = 1; break; |
Daniel Dunbar | 600d47e | 2009-11-20 17:23:39 +0000 | [diff] [blame] | 8 | case 1 : |
Devang Patel | 51b09f2 | 2007-10-04 23:45:31 +0000 | [diff] [blame] | 9 | j = 2; break; |
| 10 | case 2: |
| 11 | j = 3; break; |
| 12 | default: |
| 13 | j = 42; break; |
| 14 | } |
| 15 | j = j + 1; |
| 16 | return j; |
| 17 | } |
| 18 | |
Devang Patel | 2d79d0f | 2007-10-05 20:54:07 +0000 | [diff] [blame] | 19 | int foo2(int i) { |
| 20 | int j = 0; |
| 21 | switch (i) { |
Daniel Dunbar | 600d47e | 2009-11-20 17:23:39 +0000 | [diff] [blame] | 22 | case 1 : |
Devang Patel | 2d79d0f | 2007-10-05 20:54:07 +0000 | [diff] [blame] | 23 | j = 2; break; |
| 24 | case 2 ... 10: |
| 25 | j = 3; break; |
| 26 | default: |
| 27 | j = 42; break; |
| 28 | } |
| 29 | j = j + 1; |
| 30 | return j; |
| 31 | } |
| 32 | |
Devang Patel | c049e4f | 2007-10-08 20:57:48 +0000 | [diff] [blame] | 33 | int foo3(int i) { |
| 34 | int j = 0; |
| 35 | switch (i) { |
| 36 | default: |
| 37 | j = 42; break; |
| 38 | case 111: |
| 39 | j = 111; break; |
| 40 | case 0 ... 100: |
| 41 | j = 1; break; |
| 42 | case 222: |
| 43 | j = 222; break; |
| 44 | } |
| 45 | return j; |
| 46 | } |
| 47 | |
| 48 | |
Daniel Dunbar | 600d47e | 2009-11-20 17:23:39 +0000 | [diff] [blame] | 49 | static int foo4(int i) { |
Devang Patel | c049e4f | 2007-10-08 20:57:48 +0000 | [diff] [blame] | 50 | int j = 0; |
| 51 | switch (i) { |
| 52 | case 111: |
| 53 | j = 111; break; |
| 54 | case 0 ... 100: |
| 55 | j = 1; break; |
| 56 | case 222: |
| 57 | j = 222; break; |
| 58 | default: |
| 59 | j = 42; break; |
| 60 | case 501 ... 600: |
| 61 | j = 5; break; |
| 62 | } |
| 63 | return j; |
| 64 | } |
Chris Lattner | 1438b49 | 2007-12-01 05:27:33 +0000 | [diff] [blame] | 65 | |
Daniel Dunbar | 600d47e | 2009-11-20 17:23:39 +0000 | [diff] [blame] | 66 | // CHECK: define i32 @foo4t() |
| 67 | // CHECK: ret i32 376 |
| 68 | // CHECK: } |
| 69 | int foo4t() { |
| 70 | // 111 + 1 + 222 + 42 = 376 |
| 71 | return foo4(111) + foo4(99) + foo4(222) + foo4(601); |
| 72 | } |
| 73 | |
| 74 | // CHECK: define void @foo5() |
| 75 | // CHECK-NOT: switch |
| 76 | // CHECK: } |
Chris Lattner | 1438b49 | 2007-12-01 05:27:33 +0000 | [diff] [blame] | 77 | void foo5(){ |
| 78 | switch(0){ |
| 79 | default: |
| 80 | if (0) { |
| 81 | |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
Daniel Dunbar | 600d47e | 2009-11-20 17:23:39 +0000 | [diff] [blame] | 86 | // CHECK: define void @foo6() |
| 87 | // CHECK-NOT: switch |
| 88 | // CHECK: } |
Eli Friedman | d28a80d | 2008-05-12 16:08:04 +0000 | [diff] [blame] | 89 | void foo6(){ |
| 90 | switch(0){ |
| 91 | } |
| 92 | } |
| 93 | |
Daniel Dunbar | 600d47e | 2009-11-20 17:23:39 +0000 | [diff] [blame] | 94 | // CHECK: define void @foo7() |
| 95 | // CHECK-NOT: switch |
| 96 | // CHECK: } |
Eli Friedman | d28a80d | 2008-05-12 16:08:04 +0000 | [diff] [blame] | 97 | void foo7(){ |
| 98 | switch(0){ |
| 99 | foo7(); |
| 100 | } |
| 101 | } |
| 102 | |