| Dmitri Gribenko | b137c9e | 2012-12-30 01:28:40 +0000 | [diff] [blame] | 1 | ; RUN: opt -jump-threading -S < %s | FileCheck %s |
| Chris Lattner | d924f63 | 2010-02-11 04:40:44 +0000 | [diff] [blame] | 2 | ; rdar://7620633 |
| 3 | |
| 4 | target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| 5 | target triple = "x86_64-apple-darwin11.0" |
| 6 | |
| 7 | define void @test1(i8* %args, i32 %from_tty) nounwind optsize ssp { |
| 8 | entry: |
| 9 | %tmp = call i8* @f3(void (i8*)* null, i8* null) nounwind ; <i8*> [#uses=1] |
| 10 | %tmp1 = icmp eq i8* %args, null ; <i1> [#uses=1] |
| 11 | br i1 %tmp1, label %bb2, label %bb |
| 12 | |
| 13 | ; CHECK: entry: |
| 14 | ; CHECK-NEXT: %tmp = call i8* @f3 |
| 15 | ; CHECK-NEXT: %tmp1 = icmp eq i8* %args, null |
| 16 | ; CHECK-NEXT: br i1 %tmp1, label %bb7, label %bb |
| 17 | |
| 18 | bb: ; preds = %entry |
| 19 | %tmp2 = call noalias i8** @buildargv(i8* %args) nounwind ; <i8**> [#uses=4] |
| 20 | %tmp3 = icmp eq i8** %tmp2, null ; <i1> [#uses=1] |
| 21 | br i1 %tmp3, label %bb2, label %bb1 |
| 22 | |
| 23 | bb1: ; preds = %bb |
| 24 | call void @f2(i8** %tmp2) nounwind |
| 25 | br label %bb2 |
| 26 | |
| 27 | bb2: ; preds = %bb1, %bb, %entry |
| 28 | %argv.0 = phi i8** [ %tmp2, %bb1 ], [ %tmp2, %bb ], [ undef, %entry ] ; <i8**> [#uses=4] |
| 29 | %tmp5 = icmp eq i8* %args, null ; <i1> [#uses=1] |
| 30 | %tmp6 = icmp eq i8** %argv.0, null ; <i1> [#uses=1] |
| 31 | %tmp7 = or i1 %tmp5, %tmp6 ; <i1> [#uses=1] |
| 32 | br i1 %tmp7, label %bb7, label %bb5 |
| 33 | |
| 34 | bb5: ; preds = %bb2 |
| 35 | %tmp8 = load i8** %argv.0, align 8 ; <i8*> [#uses=1] |
| 36 | %tmp9 = icmp eq i8* %tmp8, null ; <i1> [#uses=1] |
| 37 | br i1 %tmp9, label %bb7, label %bb6 |
| 38 | |
| 39 | bb6: ; preds = %bb5 |
| 40 | %tmp10 = load i8** %argv.0, align 8 ; <i8*> [#uses=1] |
| 41 | %tmp11 = load i8* %tmp10, align 1 ; <i8> [#uses=1] |
| 42 | %tmp12 = icmp eq i8 %tmp11, 0 ; <i1> [#uses=1] |
| 43 | br i1 %tmp12, label %bb7, label %bb8 |
| 44 | |
| 45 | bb7: ; preds = %bb6, %bb5, %bb2 |
| 46 | call void @f1() nounwind optsize ssp |
| 47 | br label %bb9 |
| 48 | |
| 49 | bb8: ; preds = %bb6 |
| 50 | %tmp13 = load i8** %argv.0, align 8 ; <i8*> [#uses=1] |
| 51 | %tmp14 = call i64 @f5(i8* %tmp13) nounwind ; <i64> [#uses=0] |
| 52 | br label %bb9 |
| 53 | |
| 54 | bb9: ; preds = %bb8, %bb7 |
| 55 | call void @f4(i8* %tmp) nounwind |
| 56 | ret void |
| 57 | } |
| 58 | |
| 59 | declare noalias i8** @buildargv(i8*) |
| 60 | |
| 61 | declare void @f2(i8**) |
| 62 | |
| 63 | declare void @f4(i8*) |
| 64 | |
| 65 | declare i8* @f3(void (i8*)*, i8*) |
| 66 | |
| 67 | declare void @f1() |
| 68 | |
| 69 | declare i64 @f5(i8*) |