[NFC] Added testcase for PR25725

diff --git a/llvm/test/CodeGen/X86/pr25725.ll b/llvm/test/CodeGen/X86/pr25725.ll
new file mode 100644 (file)
index 0000000..1b5100c
--- /dev/null
+++ b/llvm/test/CodeGen/X86/pr25725.ll
@@ -0,0 +1,35 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+
+; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=i386-pc-linux | FileCheck %s --check-prefix=X86
+
+%struct.s = type { [100 x i32] }
+
+define void @f(%struct.s* nocapture %s) #0 {
+; X64-LABEL: f:
+; X64:       # %bb.0: # %entry
+; X64-NEXT:    xorps %xmm0, %xmm0
+; X64-NEXT:    movups %xmm0, 48(%rdi)
+; X64-NEXT:    movups %xmm0, 32(%rdi)
+; X64-NEXT:    movups %xmm0, 16(%rdi)
+; X64-NEXT:    movups %xmm0, (%rdi)
+; X64-NEXT:    retq
+;
+; X86-LABEL: f:
+; X86:       # %bb.0: # %entry
+; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT:    xorps %xmm0, %xmm0
+; X86-NEXT:    movups %xmm0, 48(%eax)
+; X86-NEXT:    movups %xmm0, 32(%eax)
+; X86-NEXT:    movups %xmm0, 16(%eax)
+; X86-NEXT:    movups %xmm0, (%eax)
+; X86-NEXT:    retl
+entry:
+  %s5 = bitcast %struct.s* %s to i8*
+  call void @llvm.memset.p0i8.i32(i8* noundef nonnull align 4 dereferenceable(64) %s5, i8 0, i32 64, i1 false)
+  ret void
+}
+
+declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1 immarg)
+
+attributes #0 = { "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }