Ranges test

Author: davemgreen

llvm/test/CodeGen/AArch64/GlobalISel/legalize-load-range.mir

@@ -0,0 +1,46 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple=aarch64 -run-pass=legalizer -global-isel -o - %s | FileCheck %s
+
+--- |
+  target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32"
+  target triple = "aarch64"
+
+  define <3 x i16> @range_v3i16(ptr %a_ptr, ptr %b_ptr) {
+    %a = load <3 x i16>, ptr %a_ptr, align 8, !range !0, !noundef !1
+    %b = load <3 x i16>, ptr %b_ptr, align 8, !range !2, !noundef !1
+    %result = add <3 x i16> %a, %b
+    ret <3 x i16> %result
+  }
+
+  !0 = !{i16 16, i16 17}
+  !1 = !{}
+  !2 = !{i16 32, i16 33}
+...
+---
+name:            range_v3i16
+body:             |
+  bb.1 (%ir-block.0):
+    liveins: $x0, $x1
+    ; Make sure we drop the range metadata when widening an aligned load.
+
+    ; CHECK-LABEL: name: range_v3i16
+    ; CHECK: liveins: $x0, $x1
+    ; CHECK-NEXT: {{  $}}
+    ; CHECK-NEXT: [[COPY:%[0-9]+]]:_(p0) = COPY $x0
+    ; CHECK-NEXT: [[COPY1:%[0-9]+]]:_(p0) = COPY $x1
+    ; CHECK-NEXT: [[LOAD:%[0-9]+]]:_(<4 x s16>) = G_LOAD [[COPY]](p0) :: (load (<4 x s16>) from %ir.a_ptr)
+    ; CHECK-NEXT: [[LOAD1:%[0-9]+]]:_(<4 x s16>) = G_LOAD [[COPY1]](p0) :: (load (<4 x s16>) from %ir.b_ptr)
+    ; CHECK-NEXT: [[ADD:%[0-9]+]]:_(<4 x s16>) = G_ADD [[LOAD]], [[LOAD1]]
+    ; CHECK-NEXT: $d0 = COPY [[ADD]](<4 x s16>)
+    ; CHECK-NEXT: RET_ReallyLR implicit $d0
+    %0:_(p0) = COPY $x0
+    %1:_(p0) = COPY $x1
+    %2:_(<3 x s16>) = G_LOAD %0(p0) :: (load (<3 x s16>) from %ir.a_ptr, align 8, !range !0)
+    %3:_(<3 x s16>) = G_LOAD %1(p0) :: (load (<3 x s16>) from %ir.b_ptr, align 8, !range !2)
+    %4:_(<3 x s16>) = G_ADD %2, %3
+    %5:_(s16), %6:_(s16), %7:_(s16) = G_UNMERGE_VALUES %4(<3 x s16>)
+    %8:_(s16) = G_IMPLICIT_DEF
+    %9:_(<4 x s16>) = G_BUILD_VECTOR %5(s16), %6(s16), %7(s16), %8(s16)
+    $d0 = COPY %9(<4 x s16>)
+    RET_ReallyLR implicit $d0
+...