1 ; RUN: opt -codegenprepare -S < %s | FileCheck %s
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"
7 ; objectsize should fold to a constant, which causes the branch to fold to an
8 ; uncond branch. Next, we fold the control flow alltogether.
10 define i32 @test1(i8* %ptr) nounwind ssp noredzone align 2 {
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
17 ; CHECK-NOT: br label %
19 trap: ; preds = %0, %entry
20 tail call void @llvm.trap() noreturn nounwind
28 declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly
30 declare void @llvm.trap() nounwind