| JF Bastien | f5aa1ca | 2015-08-28 16:49:09 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -mergefunc < %s | FileCheck %s |
| 2 | |
| 3 | ; We should not merge these two functions, because the blocks are different. |
| 4 | ; This tests the handling of block addresses from different functions. |
| 5 | ; ModuleID = '<stdin>' |
| 6 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 7 | target triple = "x86_64-unknown-linux-gnu" |
| 8 | |
| 9 | |
| 10 | define internal i8* @Afunc(i32* %P) { |
| 11 | ; CHECK-LABEL: @Afunc |
| 12 | ; CHECK-NEXT: store |
| 13 | ; CHECK-NEXT: store |
| 14 | ; CHECK-NEXT: ret |
| 15 | store i32 1, i32* %P |
| 16 | store i32 3, i32* %P |
| 17 | ret i8* blockaddress(@_Z1fi, %if.then) |
| 18 | } |
| 19 | |
| 20 | define internal i8* @Bfunc(i32* %P) { |
| 21 | ; CHECK-LABEL: @Bfunc |
| 22 | ; CHECK-NEXT: store |
| 23 | ; CHECK-NEXT: store |
| 24 | ; CHECK-NEXT: ret |
| 25 | store i32 1, i32* %P |
| 26 | store i32 3, i32* %P |
| 27 | ret i8* blockaddress(@_Z1fi, %if.then.2) |
| 28 | } |
| 29 | |
| 30 | |
| 31 | ; Function Attrs: nounwind uwtable |
| 32 | define i32 @_Z1fi(i32 %i) #0 { |
| 33 | entry: |
| 34 | %retval = alloca i32, align 4 |
| 35 | %i.addr = alloca i32, align 4 |
| 36 | store i32 %i, i32* %i.addr, align 4 |
| 37 | %0 = load i32, i32* %i.addr, align 4 |
| 38 | %cmp = icmp eq i32 %0, 1 |
| 39 | br i1 %cmp, label %if.then, label %if.end |
| 40 | |
| 41 | if.then: |
| 42 | store i32 3, i32* %retval |
| 43 | br label %return |
| 44 | |
| 45 | if.end: |
| 46 | %1 = load i32, i32* %i.addr, align 4 |
| 47 | %cmp1 = icmp eq i32 %1, 3 |
| 48 | br i1 %cmp1, label %if.then.2, label %if.end.3 |
| 49 | |
| 50 | if.then.2: |
| 51 | store i32 56, i32* %retval |
| 52 | br label %return |
| 53 | |
| 54 | if.end.3: |
| 55 | store i32 0, i32* %retval |
| 56 | br label %return |
| 57 | |
| 58 | return: |
| 59 | %2 = load i32, i32* %retval |
| 60 | ret i32 %2 |
| 61 | } |