[llvm] 2e8a506 - [CodeGen] Add tests for X+(Y&~X) pattern (NFC)

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2022-05-02T15:24:03+02:00
New Revision: 2e8a506142c207e3c04e153a7c62786743c553c3

URL: https://github.com/llvm/llvm-project/commit/2e8a506142c207e3c04e153a7c62786743c553c3
DIFF: https://github.com/llvm/llvm-project/commit/2e8a506142c207e3c04e153a7c62786743c553c3.diff

LOG: [CodeGen] Add tests for X+(Y&~X) pattern (NFC)

Added: 
    llvm/test/CodeGen/X86/add-and-not.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/X86/add-and-not.ll b/llvm/test/CodeGen/X86/add-and-not.ll
new file mode 100644
index 0000000000000..98f9f1ae4be79
--- /dev/null
+++ b/llvm/test/CodeGen/X86/add-and-not.ll
@@ -0,0 +1,122 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
+
+declare void @use(i8)
+
+define i8 @add_and_xor(i8 %x, i8 %y) {
+; CHECK-LABEL: add_and_xor:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    notb %al
+; CHECK-NEXT:    andb %sil, %al
+; CHECK-NEXT:    addb %dil, %al
+; CHECK-NEXT:    retq
+  %xor = xor i8 %x, -1
+  %and = and i8 %xor, %y
+  %add = add i8 %and, %x
+  ret i8 %add
+}
+
+define i8 @add_and_xor_wrong_const(i8 %x, i8 %y) {
+; CHECK-LABEL: add_and_xor_wrong_const:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    xorb $-2, %al
+; CHECK-NEXT:    andb %sil, %al
+; CHECK-NEXT:    addb %dil, %al
+; CHECK-NEXT:    retq
+  %xor = xor i8 %x, -2
+  %and = and i8 %xor, %y
+  %add = add i8 %and, %x
+  ret i8 %add
+}
+
+define i8 @add_and_xor_wrong_op(i8 %x, i8 %y, i8 %z) {
+; CHECK-LABEL: add_and_xor_wrong_op:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    # kill: def $edx killed $edx def $rdx
+; CHECK-NEXT:    # kill: def $edi killed $edi def $rdi
+; CHECK-NEXT:    notb %dl
+; CHECK-NEXT:    andb %sil, %dl
+; CHECK-NEXT:    leal (%rdx,%rdi), %eax
+; CHECK-NEXT:    # kill: def $al killed $al killed $eax
+; CHECK-NEXT:    retq
+  %xor = xor i8 %z, -1
+  %and = and i8 %xor, %y
+  %add = add i8 %and, %x
+  ret i8 %add
+}
+
+define i8 @add_and_xor_commuted1(i8 %x, i8 %y) {
+; CHECK-LABEL: add_and_xor_commuted1:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    notb %al
+; CHECK-NEXT:    andb %sil, %al
+; CHECK-NEXT:    addb %dil, %al
+; CHECK-NEXT:    retq
+  %xor = xor i8 %x, -1
+  %and = and i8 %y, %xor
+  %add = add i8 %and, %x
+  ret i8 %add
+}
+
+define i8 @add_and_xor_commuted2(i8 %x, i8 %y) {
+; CHECK-LABEL: add_and_xor_commuted2:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    notb %al
+; CHECK-NEXT:    andb %sil, %al
+; CHECK-NEXT:    addb %dil, %al
+; CHECK-NEXT:    retq
+  %xor = xor i8 %x, -1
+  %and = and i8 %xor, %y
+  %add = add i8 %x, %and
+  ret i8 %add
+}
+
+define i8 @add_and_xor_commuted3(i8 %x, i8 %y) {
+; CHECK-LABEL: add_and_xor_commuted3:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    movl %edi, %eax
+; CHECK-NEXT:    notb %al
+; CHECK-NEXT:    andb %sil, %al
+; CHECK-NEXT:    addb %dil, %al
+; CHECK-NEXT:    retq
+  %xor = xor i8 %x, -1
+  %and = and i8 %y, %xor
+  %add = add i8 %x, %and
+  ret i8 %add
+}
+
+define i8 @add_and_xor_extra_use(i8 %x, i8 %y) nounwind {
+; CHECK-LABEL: add_and_xor_extra_use:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    pushq %rbp
+; CHECK-NEXT:    pushq %r14
+; CHECK-NEXT:    pushq %rbx
+; CHECK-NEXT:    movl %esi, %r14d
+; CHECK-NEXT:    movl %edi, %ebp
+; CHECK-NEXT:    movl %ebp, %eax
+; CHECK-NEXT:    notb %al
+; CHECK-NEXT:    movzbl %al, %ebx
+; CHECK-NEXT:    movl %ebx, %edi
+; CHECK-NEXT:    callq use at PLT
+; CHECK-NEXT:    andb %r14b, %bl
+; CHECK-NEXT:    movzbl %bl, %ebx
+; CHECK-NEXT:    movl %ebx, %edi
+; CHECK-NEXT:    callq use at PLT
+; CHECK-NEXT:    addb %bpl, %bl
+; CHECK-NEXT:    movl %ebx, %eax
+; CHECK-NEXT:    popq %rbx
+; CHECK-NEXT:    popq %r14
+; CHECK-NEXT:    popq %rbp
+; CHECK-NEXT:    retq
+  %xor = xor i8 %x, -1
+  call void @use(i8 %xor)
+  %and = and i8 %xor, %y
+  call void @use(i8 %and)
+  %add = add i8 %and, %x
+  ret i8 %add
+}
+