| ; RUN: opt -codegenprepare %s -S -o - | FileCheck %s | |
| 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" | |
| target triple = "x86_64-apple-darwin10.0.0" | |
| ; CHECK: @test1 | |
| ; objectsize should fold to a constant, which causes the branch to fold to an | |
| ; uncond branch. | |
| ; rdar://8785296 | |
| define i32 @test1(i8* %ptr) nounwind ssp noredzone align 2 { | |
| entry: | |
| %0 = tail call i64 @llvm.objectsize.i64(i8* %ptr, i1 false) | |
| %1 = icmp ugt i64 %0, 3 | |
| br i1 %1, label %T, label %trap | |
| ; CHECK: entry: | |
| ; CHECK-NEXT: br label %T | |
| trap: ; preds = %0, %entry | |
| tail call void @llvm.trap() noreturn nounwind | |
| unreachable | |
| T: | |
| ; CHECK: ret i32 4 | |
| ret i32 4 | |
| } | |
| declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly | |
| declare void @llvm.trap() nounwind |