| ; Test objectsize bounds checking that won't verify until after -instcombine. |
| ; RUN: opt < %s -disable-verify -instcombine -S | opt -S | FileCheck %s |
| ; We need target data to get the sizes of the arrays and structures. |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" |
| |
| declare i32 @llvm.objectsize.i32.p0i8(i8*, i1) nounwind readonly |
| |
| ; CHECK-LABEL: @PR13390( |
| define i32 @PR13390(i1 %bool, i8* %a) { |
| entry: |
| %cond = or i1 %bool, true |
| br i1 %cond, label %return, label %xpto |
| |
| xpto: |
| %select = select i1 %bool, i8* %select, i8* %a |
| %select2 = select i1 %bool, i8* %a, i8* %select2 |
| %0 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %select, i1 true) |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %select2, i1 true) |
| %2 = add i32 %0, %1 |
| ; CHECK: ret i32 undef |
| ret i32 %2 |
| |
| return: |
| ret i32 42 |
| } |
| |
| define i32 @PR13390_logical(i1 %bool, i8* %a) { |
| entry: |
| %cond = select i1 %bool, i1 true, i1 true |
| br i1 %cond, label %return, label %xpto |
| |
| xpto: |
| %select = select i1 %bool, i8* %select, i8* %a |
| %select2 = select i1 %bool, i8* %a, i8* %select2 |
| %0 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %select, i1 true) |
| %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %select2, i1 true) |
| %2 = add i32 %0, %1 |
| ; CHECK: ret i32 undef |
| ret i32 %2 |
| |
| return: |
| ret i32 42 |
| } |
| |
| ; CHECK-LABEL: @PR13621( |
| define i32 @PR13621(i1 %bool) nounwind { |
| entry: |
| %cond = or i1 %bool, true |
| br i1 %cond, label %return, label %xpto |
| |
| ; technically reachable, but this malformed IR may appear as a result of constant propagation |
| xpto: |
| %gep2 = getelementptr i8, i8* %gep, i32 1 |
| %gep = getelementptr i8, i8* %gep2, i32 1 |
| %o = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 true) |
| ; CHECK: ret i32 undef |
| ret i32 %o |
| |
| return: |
| ret i32 7 |
| } |
| |
| define i32 @PR13621_logical(i1 %bool) nounwind { |
| entry: |
| %cond = select i1 %bool, i1 true, i1 true |
| br i1 %cond, label %return, label %xpto |
| |
| ; technically reachable, but this malformed IR may appear as a result of constant propagation |
| xpto: |
| %gep2 = getelementptr i8, i8* %gep, i32 1 |
| %gep = getelementptr i8, i8* %gep2, i32 1 |
| %o = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 true) |
| ; CHECK: ret i32 undef |
| ret i32 %o |
| |
| return: |
| ret i32 7 |
| } |