Pre-commit test cases

Author: dianqk

llvm/test/CodeGen/LoongArch/register-coalescer-crash-pr79718.mir

@@ -0,0 +1,128 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
+# RUN: llc -o - %s -mtriple=loongarch64 \
+# RUN:  -run-pass=register-coalescer -join-liveintervals=1 -join-splitedges=0 2>&1 | FileCheck %s
+
+---
+name:            foo
+tracksRegLiveness: true
+body:             |
+  bb.0:
+    liveins: $r4, $r5, $r6, $r7, $r8
+
+    %22:gpr = COPY killed $r8
+    %21:gpr = COPY killed $r7
+    %20:gpr = COPY killed $r6
+    %19:gpr = COPY killed $r5
+    %18:gpr = COPY killed $r4
+    %29:gpr = COPY $r0
+    %27:gpr = COPY killed %29
+    %30:gpr = ANDI killed %19, 1
+    %41:gpr = ORI $r0, 1
+    %35:gpr = ANDI killed %20, 1
+    %36:gpr = ANDI killed %21, 1
+    %39:gpr = ANDI killed %22, 1
+    %43:gpr = COPY %27
+    %44:gpr = COPY killed %27
+    %45:gpr = IMPLICIT_DEF
+
+  bb.1:
+    %2:gpr = COPY killed %45
+    %1:gpr = COPY killed %44
+    %0:gpr = COPY killed %43
+    %46:gpr = COPY %0
+    %47:gpr = COPY %1
+    %48:gpr = COPY killed %1
+    %49:gpr = COPY killed %2
+
+  bb.2:
+    successors: %bb.3, %bb.4
+
+    %6:gpr = COPY killed %49
+    %5:gpr = COPY killed %48
+    %4:gpr = COPY killed %47
+    %3:gpr = COPY killed %46
+    BEQZ %30, %bb.4
+
+  bb.3:
+    %51:gpr = COPY killed %4
+    %52:gpr = COPY killed %5
+    PseudoBR %bb.9
+
+  bb.4:
+    %50:gpr = COPY killed %5
+
+  bb.5:
+    successors: %bb.7(0x7c000000), %bb.6(0x04000000)
+
+    %7:gpr = COPY killed %50
+    dead %33:gpr = LD_D $r0, 8
+    dead %34:gpr = LD_D $r0, 0
+    BNEZ %35, %bb.7
+
+  bb.6:
+    %32:gpr = COPY $r0
+    %31:gpr = COPY killed %32
+    %53:gpr = COPY killed %31
+    %54:gpr = COPY killed %6
+    PseudoBR %bb.11
+
+  bb.7:
+    successors: %bb.8(0x7c000000), %bb.10(0x04000000)
+
+    BEQZ %36, %bb.10
+    PseudoBR %bb.8
+
+  bb.8:
+    successors: %bb.9(0x04000000), %bb.5(0x7c000000)
+
+    %8:gpr = ADDI_D killed %7, 1
+    %50:gpr = COPY %8
+    %51:gpr = COPY %8
+    %52:gpr = COPY killed %8
+    BEQZ %39, %bb.5
+    PseudoBR %bb.9
+
+  bb.9:
+    %10:gpr = COPY killed %52
+    %9:gpr = COPY killed %51
+    %40:gpr = COPY $r0
+    ST_B killed %40, %18, 0
+    %55:gpr = COPY killed %3
+    %56:gpr = COPY killed %9
+    %57:gpr = COPY killed %10
+    %58:gpr = COPY killed %6
+    PseudoBR %bb.12
+
+  bb.10:
+    %42:gpr = ADDI_D killed %7, 1
+    %53:gpr = COPY %41
+    %54:gpr = COPY killed %42
+
+  bb.11:
+    %13:gpr = COPY killed %54
+    %12:gpr = COPY killed %53
+    %38:gpr = COPY $r0
+    ST_D killed %38, %18, 0
+    %55:gpr = COPY %13
+    %56:gpr = COPY %12
+    %57:gpr = COPY killed %12
+    %58:gpr = COPY killed %13
+
+  bb.12:
+    successors: %bb.2(0x7c000000), %bb.1(0x04000000)
+
+    %17:gpr = COPY killed %58
+    %16:gpr = COPY killed %57
+    %15:gpr = COPY killed %56
+    %14:gpr = COPY killed %55
+    %43:gpr = COPY %14
+    %44:gpr = COPY %15
+    %45:gpr = COPY %17
+    %46:gpr = COPY killed %14
+    %47:gpr = COPY killed %15
+    %48:gpr = COPY killed %16
+    %49:gpr = COPY killed %17
+    BEQ %0, %41, %bb.2
+    PseudoBR %bb.1
+
+...