[llvm] cb47e25 - [X86] Add test coverage for D137388

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2023-03-14T15:26:39Z
New Revision: cb47e254e52244548cebfa4d9848f1f10dee7cf2

URL: https://github.com/llvm/llvm-project/commit/cb47e254e52244548cebfa4d9848f1f10dee7cf2
DIFF: https://github.com/llvm/llvm-project/commit/cb47e254e52244548cebfa4d9848f1f10dee7cf2.diff

LOG: [X86] Add test coverage for D137388

Issue #58914 reported an example of the TwoAddressInstruction crash that was fixed (without test case) in D137388

Added: 
    llvm/test/CodeGen/X86/pr58914.mir

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/X86/pr58914.mir b/llvm/test/CodeGen/X86/pr58914.mir
new file mode 100644
index 000000000000..f1cafc99d550
--- /dev/null
+++ b/llvm/test/CodeGen/X86/pr58914.mir
@@ -0,0 +1,36 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 2
+# RUN: llc -x mir < %s -mtriple=x86_64-unknown-unknown -mcpu=skylake-avx512 -O1 -run-pass=livevars,twoaddressinstruction | FileCheck %s
+
+---
+name: PR58914
+tracksRegLiveness: true
+stack:
+  - { id: 0, offset: 0, size: 768 }
+body:             |
+  ; CHECK-LABEL: name: PR58914
+  ; CHECK: bb.0:
+  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
+  ; CHECK-NEXT:   liveins: $rcx, $ymm0
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gr64_nosp = COPY killed $rcx
+  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:vr256x = COPY killed $ymm0
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT: bb.1:
+  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
+  ; CHECK-NEXT: {{  $}}
+  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:vk16wm = COPY $rsp
+  ; CHECK-NEXT:   [[VBLENDMPDZ256rmk:%[0-9]+]]:vr256x = VBLENDMPDZ256rmk killed [[COPY2]], [[COPY1]], %stack.0, 8, [[COPY]], 0, $noreg
+  ; CHECK-NEXT:   RET killed [[VBLENDMPDZ256rmk]]
+  bb.0:
+    successors: %bb.1(0x7c000000)
+    liveins: $rcx, $ymm0
+    %0:gr64_nosp = COPY $rcx
+    %1:vr256x = COPY $ymm0
+
+  bb.1:
+    successors: %bb.1(0x7c000000)
+    %2:vk16wm = COPY $rsp
+    %3:vr256x = VMOVUPDZ256rmk %1, killed %2, %stack.0, 8, %0, 0, $noreg
+    RET %3
+
+...