| ; REQUIRES: x86_64-linux |
| ; RUN: opt < %s -codegenprepare -mtriple=x86_64 -S -o %t |
| ; RUN: FileCheck %s < %t --check-prefix=IR |
| ; RUN: llc -mtriple=x86_64-- -stop-after=finalize-isel %t -o - | FileCheck %s --check-prefix=MIR |
| |
| define internal i32 @arc_compare() { |
| entry: |
| %0 = load i64, i64* undef, align 8 |
| br i1 undef, label %return, label %if.end |
| |
| if.end: ; preds = %entry |
| ;; Check pseudo probes are next to each other at the beginning of this block. |
| ; IR-label: if.end |
| ; IR: call void @llvm.pseudoprobe(i64 5116412291814990879, i64 1, i32 0, i64 -1) |
| ; IR: call void @llvm.pseudoprobe(i64 5116412291814990879, i64 3, i32 0, i64 -1) |
| call void @llvm.pseudoprobe(i64 5116412291814990879, i64 1, i32 0, i64 -1) |
| %1 = load i16, i16* undef, align 8 |
| call void @llvm.pseudoprobe(i64 5116412291814990879, i64 3, i32 0, i64 -1) |
| %2 = and i16 %1, 16 |
| %3 = icmp eq i16 %2, 0 |
| ;; Check the load-and-cmp sequence is fold into a test instruction. |
| ; MIR-label: bb.1.if.end |
| ; MIR: %[[#REG:]]:gr64 = IMPLICIT_DEF |
| ; MIR: TEST8mi killed %[[#REG]], 1, $noreg, 0, $noreg, 16 |
| ; MIR: JCC_1 |
| br i1 %3, label %return, label %if.end6 |
| |
| if.end6: ; preds = %if.end |
| call void @llvm.pseudoprobe(i64 5116412291814990879, i64 5, i32 0, i64 -1) |
| br label %return |
| |
| return: ; preds = %if.end6, %if.end, %entry |
| ret i32 undef |
| } |
| |
| ; Function Attrs: inaccessiblememonly nounwind willreturn |
| declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0 |
| |
| attributes #0 = { inaccessiblememonly nounwind willreturn } |
