| Chris Lattner | 94e8e0c | 2011-01-15 07:25:29 +0000 | [diff] [blame] | 1 | ; RUN: opt -codegenprepare %s -S -o - | FileCheck %s |
| 2 | |
| 3 | 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" |
| 4 | target triple = "x86_64-apple-darwin10.0.0" |
| 5 | |
| 6 | ; CHECK: @test1 |
| Chris Lattner | eeba3f5 | 2011-01-15 07:36:13 +0000 | [diff] [blame] | 7 | ; objectsize should fold to a constant, which causes the branch to fold to an |
| 8 | ; uncond branch. |
| 9 | ; rdar://8785296 |
| Chris Lattner | 94e8e0c | 2011-01-15 07:25:29 +0000 | [diff] [blame] | 10 | define i32 @test1(i8* %ptr) nounwind ssp noredzone align 2 { |
| 11 | entry: |
| 12 | %0 = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) |
| 13 | %1 = icmp ugt i64 %0, 3 |
| 14 | br i1 %1, label %T, label %trap |
| 15 | |
| Chris Lattner | 6ccb5ef | 2011-01-15 07:51:19 +0000 | [diff] [blame] | 16 | ; CHECK: entry: |
| Cameron Zwarich | 899eaa3 | 2011-03-11 21:52:04 +0000 | [diff] [blame] | 17 | ; CHECK-NEXT: br label %T |
| Chris Lattner | 6ccb5ef | 2011-01-15 07:51:19 +0000 | [diff] [blame] | 18 | |
| Chris Lattner | 94e8e0c | 2011-01-15 07:25:29 +0000 | [diff] [blame] | 19 | trap: ; preds = %0, %entry |
| 20 | tail call void @llvm.trap() noreturn nounwind |
| 21 | unreachable |
| 22 | |
| 23 | T: |
| Cameron Zwarich | 899eaa3 | 2011-03-11 21:52:04 +0000 | [diff] [blame] | 24 | ; CHECK: ret i32 4 |
| Chris Lattner | 94e8e0c | 2011-01-15 07:25:29 +0000 | [diff] [blame] | 25 | ret i32 4 |
| 26 | } |
| 27 | |
| 28 | declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly |
| 29 | |
| 30 | declare void @llvm.trap() nounwind |