| Preston Gurd | a01daac | 2013-01-08 18:27:24 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -O1 -mcpu=atom -mtriple=i686-linux | FileCheck %s |
| 2 | |
| 3 | declare void @external_function(...) |
| 4 | |
| 5 | define i32 @test_return_val(i32 %a) nounwind { |
| 6 | ; CHECK: test_return_val |
| 7 | ; CHECK: movl |
| 8 | ; CHECK: nop |
| 9 | ; CHECK: nop |
| 10 | ; CHECK: nop |
| 11 | ; CHECK: nop |
| 12 | ; CHECK: nop |
| 13 | ; CHECK: nop |
| 14 | ; CHECK: ret |
| 15 | ret i32 %a |
| 16 | } |
| 17 | |
| 18 | define i32 @test_optsize(i32 %a) nounwind optsize { |
| 19 | ; CHECK: test_optsize |
| 20 | ; CHECK: movl |
| 21 | ; CHECK-NEXT: ret |
| 22 | ret i32 %a |
| 23 | } |
| 24 | |
| Preston Gurd | 99c6990 | 2013-01-11 22:06:56 +0000 | [diff] [blame] | 25 | define i32 @test_minsize(i32 %a) nounwind minsize { |
| 26 | ; CHECK: test_minsize |
| 27 | ; CHECK: movl |
| 28 | ; CHECK-NEXT: ret |
| 29 | ret i32 %a |
| 30 | } |
| 31 | |
| Preston Gurd | a01daac | 2013-01-08 18:27:24 +0000 | [diff] [blame] | 32 | define i32 @test_add(i32 %a, i32 %b) nounwind { |
| 33 | ; CHECK: test_add |
| 34 | ; CHECK: addl |
| 35 | ; CHECK: nop |
| 36 | ; CHECK: nop |
| 37 | ; CHECK: nop |
| 38 | ; CHECK: nop |
| 39 | ; CHECK: ret |
| 40 | %result = add i32 %a, %b |
| 41 | ret i32 %result |
| 42 | } |
| 43 | |
| 44 | define i32 @test_multiple_ret(i32 %a, i32 %b, i1 %c) nounwind { |
| 45 | ; CHECK: @test_multiple_ret |
| 46 | ; CHECK: je |
| 47 | |
| 48 | ; CHECK: nop |
| 49 | ; CHECK: nop |
| 50 | ; CHECK: ret |
| 51 | |
| 52 | ; CHECK: nop |
| 53 | ; CHECK: nop |
| 54 | ; CHECK: ret |
| 55 | |
| 56 | br i1 %c, label %bb1, label %bb2 |
| 57 | |
| 58 | bb1: |
| 59 | ret i32 %a |
| 60 | |
| 61 | bb2: |
| 62 | ret i32 %b |
| 63 | } |
| 64 | |
| 65 | define void @test_call_others(i32 %x) nounwind |
| 66 | { |
| 67 | ; CHECK: test_call_others |
| 68 | ; CHECK: je |
| 69 | %tobool = icmp eq i32 %x, 0 |
| 70 | br i1 %tobool, label %if.end, label %true.case |
| 71 | |
| 72 | ; CHECK: jmp external_function |
| 73 | true.case: |
| 74 | tail call void bitcast (void (...)* @external_function to void ()*)() nounwind |
| 75 | br label %if.end |
| 76 | |
| 77 | ; CHECK: nop |
| 78 | ; CHECK: nop |
| 79 | ; CHECK: nop |
| 80 | ; CHECK: nop |
| 81 | ; CHECK: ret |
| 82 | if.end: |
| 83 | ret void |
| 84 | |
| 85 | } |
| Preston Gurd | 99c6990 | 2013-01-11 22:06:56 +0000 | [diff] [blame] | 86 | |
| 87 | define void @test_branch_to_same_bb(i32 %x, i32 %y) nounwind { |
| 88 | ; CHECK: @test_branch_to_same_bb |
| 89 | %cmp = icmp sgt i32 %x, 0 |
| 90 | br i1 %cmp, label %while.cond, label %while.end |
| 91 | |
| 92 | while.cond: |
| 93 | br label %while.cond |
| 94 | |
| 95 | ; CHECK: nop |
| 96 | ; CHECK: nop |
| 97 | ; CHECK: nop |
| 98 | ; CHECK: nop |
| 99 | ; CHECK: ret |
| 100 | while.end: |
| 101 | ret void |
| 102 | } |
| 103 | |