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, i1 false, 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 ; CHECK-LABEL: @test_objectsize_null_flag(
29 define i64 @test_objectsize_null_flag(i8* %ptr) {
32 %0 = tail call i64 @llvm.objectsize.i64(i8* null, i1 false, i1 true, i1 false)
36 ; CHECK-LABEL: @test_objectsize_null_flag_min(
37 define i64 @test_objectsize_null_flag_min(i8* %ptr) {
40 %0 = tail call i64 @llvm.objectsize.i64(i8* null, i1 true, i1 true, i1 false)
44 ; Test foldable null pointers because we evaluate them with non-exact modes in
46 ; CHECK-LABEL: @test_objectsize_null_flag_noas0(
47 define i64 @test_objectsize_null_flag_noas0() {
50 %0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 false,
55 ; CHECK-LABEL: @test_objectsize_null_flag_min_noas0(
56 define i64 @test_objectsize_null_flag_min_noas0() {
59 %0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 true,
64 ; CHECK-LABEL: @test_objectsize_null_known_flag_noas0
65 define i64 @test_objectsize_null_known_flag_noas0() {
68 %0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 false,
73 ; CHECK-LABEL: @test_objectsize_null_known_flag_min_noas0
74 define i64 @test_objectsize_null_known_flag_min_noas0() {
77 %0 = tail call i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)* null, i1 true,
83 declare i64 @llvm.objectsize.i64(i8*, i1, i1, i1) nounwind readonly
84 declare i64 @llvm.objectsize.i64.p1i8(i8 addrspace(1)*, i1, i1, i1) nounwind readonly
86 declare void @llvm.trap() nounwind