From 028eb436546a75a434931f9bbbb073b353920a74 Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Thu, 22 Jul 2021 16:50:38 -0400
Subject: [PATCH] [x86] add tests for add X, (cmov constants); NFC

---
 llvm/test/CodeGen/X86/add-cmov.ll | 121 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 llvm/test/CodeGen/X86/add-cmov.ll

diff --git a/llvm/test/CodeGen/X86/add-cmov.ll b/llvm/test/CodeGen/X86/add-cmov.ll
new file mode 100644
index 0000000..71ddea4
--- /dev/null
+++ b/llvm/test/CodeGen/X86/add-cmov.ll
@@ -0,0 +1,121 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -verify-machineinstrs -mtriple=x86_64-- | FileCheck %s
+
+define i64 @select_consts_i64(i64 %offset, i32 %x) {
+; CHECK-LABEL: select_consts_i64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    xorl %ecx, %ecx
+; CHECK-NEXT:    testl %esi, %esi
+; CHECK-NEXT:    movl $42, %eax
+; CHECK-NEXT:    cmovneq %rcx, %rax
+; CHECK-NEXT:    addq %rdi, %rax
+; CHECK-NEXT:    retq
+  %b = icmp eq i32 %x, 0
+  %s = select i1 %b, i64 42, i64 0
+  %r = add i64 %s, %offset
+  ret i64 %r
+}
+
+define i32 @select_consts_i32(i32 %offset, i64 %x) {
+; CHECK-LABEL: select_consts_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    xorl %ecx, %ecx
+; CHECK-NEXT:    cmpq $42, %rsi
+; CHECK-NEXT:    movl $43, %eax
+; CHECK-NEXT:    cmovgel %ecx, %eax
+; CHECK-NEXT:    addl %edi, %eax
+; CHECK-NEXT:    retq
+  %b = icmp sgt i64 %x, 41
+  %s = select i1 %b, i32 0, i32 43
+  %r = add i32 %offset, %s
+  ret i32 %r
+}
+
+define i16 @select_consts_i16(i16 %offset, i1 %b) {
+; CHECK-LABEL: select_consts_i16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    xorl %ecx, %ecx
+; CHECK-NEXT:    testb $1, %sil
+; CHECK-NEXT:    movl $44, %eax
+; CHECK-NEXT:    cmovel %ecx, %eax
+; CHECK-NEXT:    addl %edi, %eax
+; CHECK-NEXT:    # kill: def $ax killed $ax killed $eax
+; CHECK-NEXT:    retq
+  %s = select i1 %b, i16 44, i16 0
+  %r = add i16 %s, %offset
+  ret i16 %r
+}
+
+define i8 @select_consts_i8(i8 %offset, i1 %b) {
+; CHECK-LABEL: select_consts_i8:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    xorl %ecx, %ecx
+; CHECK-NEXT:    testb $1, %sil
+; CHECK-NEXT:    movl $45, %eax
+; CHECK-NEXT:    cmovnel %ecx, %eax
+; CHECK-NEXT:    addb %dil, %al
+; CHECK-NEXT:    # kill: def $al killed $al killed $eax
+; CHECK-NEXT:    retq
+  %s = select i1 %b, i8 0, i8 45
+  %r = add i8 %offset, %s
+  ret i8 %r
+}
+
+define i32 @select_consts_use_i32(i32 %offset, i64 %x, i32* %p) {
+; CHECK-LABEL: select_consts_use_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    xorl %ecx, %ecx
+; CHECK-NEXT:    cmpq $42, %rsi
+; CHECK-NEXT:    movl $43, %eax
+; CHECK-NEXT:    cmovgel %ecx, %eax
+; CHECK-NEXT:    movl %eax, (%rdx)
+; CHECK-NEXT:    addl %edi, %eax
+; CHECK-NEXT:    retq
+  %b = icmp sgt i64 %x, 41
+  %s = select i1 %b, i32 0, i32 43
+  store i32 %s, i32* %p
+  %r = add i32 %offset, %s
+  ret i32 %r
+}
+
+define i32 @select_40_43_i32(i32 %offset, i64 %x) {
+; CHECK-LABEL: select_40_43_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
+; CHECK-NEXT:    xorl %eax, %eax
+; CHECK-NEXT:    cmpq $42, %rsi
+; CHECK-NEXT:    setl %al
+; CHECK-NEXT:    leal (%rax,%rax,2), %eax
+; CHECK-NEXT:    leal 40(%rdi,%rax), %eax
+; CHECK-NEXT:    retq
+  %b = icmp sgt i64 %x, 41
+  %s = select i1 %b, i32 40, i32 43
+  %r = add i32 %offset, %s
+  ret i32 %r
+}
+
+define i32 @select_0_1_i32(i32 %offset, i64 %x) {
+; CHECK-LABEL: select_0_1_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    cmpq $42, %rsi
+; CHECK-NEXT:    adcl $0, %eax
+; CHECK-NEXT:    retq
+  %b = icmp ugt i64 %x, 41
+  %s = select i1 %b, i32 0, i32 1
+  %r = add i32 %offset, %s
+  ret i32 %r
+}
+
+define i32 @select_1_0_i32(i32 %offset, i64 %x) {
+; CHECK-LABEL: select_1_0_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    cmpq $42, %rsi
+; CHECK-NEXT:    sbbl $-1, %eax
+; CHECK-NEXT:    retq
+  %b = icmp ugt i64 %x, 41
+  %s = select i1 %b, i32 1, i32 0
+  %r = add i32 %offset, %s
+  ret i32 %r
+}
-- 
2.7.4