1 files changed, 63 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/pr36865.ll b/llvm/test/CodeGen/X86/pr36865.ll
new file mode 100644
index 00000000000..397b09f10de
--- /dev/null
+++ b/llvm/test/CodeGen/X86/pr36865.ll
@@ -0,0 +1,63 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple x86_64-unknown-linux-gnu < %s | FileCheck %s
+
+define void @main() {
+; CHECK-LABEL: main:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    subq $424, %rsp # imm = 0x1A8
+; CHECK-NEXT:    .cfi_def_cfa_offset 432
+; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rdi
+; CHECK-NEXT:    xorl %esi, %esi
+; CHECK-NEXT:    movl $400, %edx # imm = 0x190
+; CHECK-NEXT:    callq memset
+; CHECK-NEXT:    movl {{[0-9]+}}(%rsp), %eax
+; CHECK-NEXT:    movl (%rax), %ecx
+; CHECK-NEXT:    addl 0, %eax
+; CHECK-NEXT:    addl %ecx, %eax
+; CHECK-NEXT:    addl %ecx, %eax
+; CHECK-NEXT:    addl {{[0-9]+}}(%rsp), %eax
+; CHECK-NEXT:    movl %eax, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    movl {{[0-9]+}}(%rsp), %eax
+; CHECK-NEXT:    movl %eax, %ecx
+; CHECK-NEXT:    imull %eax, %ecx
+; CHECK-NEXT:    subl %ecx, %eax
+; CHECK-NEXT:    movl %eax, (%rax)
+entry:
+  %k = alloca i32, align 4
+  %m = alloca i32, align 4
+  %a = alloca [100 x i32], align 16
+  %0 = bitcast [100 x i32]* %a to i8*
+  call void @llvm.memset.p0i8.i64(i8* nonnull align 16 %0, i8 0, i64 400, i1 false)
+  %arrayidx = getelementptr inbounds [100 x i32], [100 x i32]* %a, i64 0, i64 34
+  %add = load i32, i32* %k
+  %1 = load i32, i32* null
+  %2 = load i32, i32* undef
+  %3 = load i32, i32* undef
+  %4 = load i32, i32* %arrayidx
+  %5 = load i32, i32* undef
+  %6 = load i32, i32* undef
+  %7 = load i32, i32* undef
+  %8 = load i32, i32* undef
+  %9 = load i32, i32* undef
+  %10 = load i32, i32* undef
+  %11 = load i32, i32* undef
+  %12 = load i32, i32* undef
+  %13 = load i32, i32* undef
+  %14 = load i32, i32* undef
+  %15 = load i32, i32* undef
+  %16 = load i32, i32* undef
+  %add.1 = add i32 %add, %1
+  %add.2 = add i32 %add.1, %2
+  %add.3 = add i32 %add.2, %3
+  %add.4 = add i32 %add.3, %4
+  store i32 %add.4, i32* %k
+  %17 = load i32, i32* %m
+  %mul = mul i32 %17, %17
+  %sub = sub i32 %17, %mul
+  store i32 %sub, i32* undef
+  unreachable
+}
+
+declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1) #0
+
+attributes #0 = { argmemonly nounwind }