1 files changed, 59 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pr32256.ll b/test/CodeGen/X86/pr32256.ll
new file mode 100644
index 0000000000000..cb26c13e53eb2
--- /dev/null
+++ b/test/CodeGen/X86/pr32256.ll
@@ -0,0 +1,59 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -fast-isel -mtriple=i686-unknown-unknown -O0 -mcpu=skx | FileCheck %s
+
+@c = external global i8, align 1
+
+; Function Attrs: noinline nounwind
+define void @_Z1av() {
+; CHECK-LABEL: _Z1av:
+; CHECK:       # BB#0: # %entry
+; CHECK-NEXT:    subl $6, %esp
+; CHECK-NEXT:  .Lcfi0:
+; CHECK-NEXT:    .cfi_def_cfa_offset 10
+; CHECK-NEXT:    xorl %eax, %eax
+; CHECK-NEXT:    kmovd %eax, %k0
+; CHECK-NEXT:    movb c, %cl
+; CHECK-NEXT:    # implicit-def: %EAX
+; CHECK-NEXT:    movb %cl, %al
+; CHECK-NEXT:    andl $1, %eax
+; CHECK-NEXT:    kmovd %eax, %k1
+; CHECK-NEXT:    kmovq %k1, %k2
+; CHECK-NEXT:    kxnorw %k0, %k0, %k3
+; CHECK-NEXT:    kshiftrw $15, %k3, %k3
+; CHECK-NEXT:    kxorw %k3, %k1, %k1
+; CHECK-NEXT:    kmovd %k1, %eax
+; CHECK-NEXT:    movb %al, %cl
+; CHECK-NEXT:    testb $1, %cl
+; CHECK-NEXT:    kmovw %k2, {{[0-9]+}}(%esp) # 2-byte Spill
+; CHECK-NEXT:    kmovw %k0, (%esp) # 2-byte Spill
+; CHECK-NEXT:    jne .LBB0_1
+; CHECK-NEXT:    jmp .LBB0_2
+; CHECK-NEXT:  .LBB0_1: # %land.rhs
+; CHECK-NEXT:    xorl %eax, %eax
+; CHECK-NEXT:    kmovd %eax, %k0
+; CHECK-NEXT:    kmovw %k0, (%esp) # 2-byte Spill
+; CHECK-NEXT:    jmp .LBB0_2
+; CHECK-NEXT:  .LBB0_2: # %land.end
+; CHECK-NEXT:    kmovw (%esp), %k0 # 2-byte Reload
+; CHECK-NEXT:    kmovd %k0, %eax
+; CHECK-NEXT:    movb %al, %cl
+; CHECK-NEXT:    andb $1, %cl
+; CHECK-NEXT:    movb %cl, {{[0-9]+}}(%esp)
+; CHECK-NEXT:    addl $6, %esp
+; CHECK-NEXT:    retl
+entry:
+  %b = alloca i8, align 1
+  %0 = load i8, i8* @c, align 1
+  %tobool = trunc i8 %0 to i1
+  %lnot = xor i1 %tobool, true
+  br i1 %lnot, label %land.rhs, label %land.end
+
+land.rhs:                                         ; preds = %entry
+  br label %land.end
+
+land.end:                                         ; preds = %land.rhs, %entry
+  %1 = phi i1 [ false, %entry ], [ false, %land.rhs ]
+  %conv = zext i1 %1 to i8
+  store i8 %conv, i8* %b, align 1
+  ret void
+}