| Joseph Tremoulet | 09af67a | 2015-09-27 01:47:46 +0000 | [diff] [blame^] | 1 | ; RUN: opt -S -simplifycfg < %s | FileCheck %s |
| 2 | |
| 3 | declare void @Personality() |
| 4 | declare void @f() |
| 5 | |
| 6 | ; CHECK-LABEL: define void @test1() |
| 7 | define void @test1() personality i8* bitcast (void ()* @Personality to i8*) { |
| 8 | entry: |
| 9 | ; CHECK: call void @f() |
| 10 | invoke void @f() |
| 11 | to label %exit unwind label %unreachable.unwind |
| 12 | exit: |
| 13 | ret void |
| 14 | unreachable.unwind: |
| 15 | cleanuppad [] |
| 16 | unreachable |
| 17 | } |
| 18 | |
| 19 | ; CHECK-LABEL: define void @test2() |
| 20 | define void @test2() personality i8* bitcast (void ()* @Personality to i8*) { |
| 21 | entry: |
| 22 | invoke void @f() |
| 23 | to label %exit unwind label %catch.pad |
| 24 | catch.pad: |
| 25 | ; CHECK: catchpad [] |
| 26 | ; CHECK-NEXT: to label %catch.body unwind label %catch.end |
| 27 | %catch = catchpad [] |
| 28 | to label %catch.body unwind label %catch.end |
| 29 | catch.body: |
| 30 | ; CHECK: catch.body: |
| 31 | ; CHECK-NEXT: call void @f() |
| 32 | ; CHECK-NEXT: unreachable |
| 33 | call void @f() |
| 34 | catchret %catch to label %unreachable |
| 35 | catch.end: |
| 36 | ; CHECK: catch.end: |
| 37 | ; CHECK-NEXT: catchendpad unwind to caller |
| 38 | catchendpad unwind label %unreachable.unwind |
| 39 | exit: |
| 40 | ret void |
| 41 | unreachable.unwind: |
| 42 | cleanuppad [] |
| 43 | unreachable |
| 44 | unreachable: |
| 45 | unreachable |
| 46 | } |
| 47 | |
| 48 | ; CHECK-LABEL: define void @test3() |
| 49 | define void @test3() personality i8* bitcast (void ()* @Personality to i8*) { |
| 50 | entry: |
| 51 | invoke void @f() |
| 52 | to label %exit unwind label %cleanup.pad |
| 53 | cleanup.pad: |
| 54 | ; CHECK: %cleanup = cleanuppad [] |
| 55 | ; CHECK-NEXT: call void @f() |
| 56 | ; CHECK-NEXT: unreachable |
| 57 | %cleanup = cleanuppad [] |
| 58 | invoke void @f() |
| 59 | to label %cleanup.ret unwind label %cleanup.end |
| 60 | cleanup.ret: |
| 61 | ; This cleanupret should be rewritten to unreachable, |
| 62 | ; and merged into the pred block. |
| 63 | cleanupret %cleanup unwind label %unreachable.unwind |
| 64 | cleanup.end: |
| 65 | ; This cleanupendpad should be rewritten to unreachable, |
| 66 | ; causing the invoke to be rewritten to a call. |
| 67 | cleanupendpad %cleanup unwind label %unreachable.unwind |
| 68 | exit: |
| 69 | ret void |
| 70 | unreachable.unwind: |
| 71 | cleanuppad [] |
| 72 | unreachable |
| 73 | } |
| 74 | |
| 75 | ; CHECK-LABEL: define void @test4() |
| 76 | define void @test4() personality i8* bitcast (void ()* @Personality to i8*) { |
| 77 | entry: |
| 78 | invoke void @f() |
| 79 | to label %exit unwind label %terminate.pad |
| 80 | terminate.pad: |
| 81 | ; CHECK: terminatepad [] unwind to caller |
| 82 | terminatepad [] unwind label %unreachable.unwind |
| 83 | exit: |
| 84 | ret void |
| 85 | unreachable.unwind: |
| 86 | cleanuppad [] |
| 87 | unreachable |
| 88 | } |