1 files changed, 51 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pr27591.ll b/test/CodeGen/X86/pr27591.ll
new file mode 100644
index 000000000000..11f5de4956a4
--- /dev/null
+++ b/test/CodeGen/X86/pr27591.ll
@@ -0,0 +1,51 @@
+; RUN: llc -o - -O0 < %s | FileCheck %s
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @test1(i32 %x) #0 {
+; CHECK-LABEL: test1:
+; CHECK:       # BB#0: # %entry
+; CHECK-NEXT:    pushq %rax
+; CHECK-NEXT:    testl %edi, %edi
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    movb %al, %cl
+; CHECK-NEXT:    kmovw %ecx, %k0
+; CHECK-NEXT:    kmovb %k0, %eax
+; CHECK-NEXT:    andb $1, %al
+; CHECK-NEXT:    movzbl %al, %edi
+; CHECK-NEXT:    callq callee1
+; CHECK-NEXT:    popq %rax
+; CHECK-NEXT:    retq
+entry:
+  %tobool = icmp ne i32 %x, 0
+  call void @callee1(i1 zeroext %tobool)
+  ret void
+}
+
+define void @test2(i32 %x) #0 {
+; CHECK-LABEL: test2:
+; CHECK:       # BB#0: # %entry
+; CHECK-NEXT:    pushq %rax
+; CHECK-NEXT:    testl %edi, %edi
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    movb %al, %cl
+; CHECK-NEXT:    kmovw %ecx, %k0
+; CHECK-NEXT:    kmovw %k0, %ecx
+; CHECK-NEXT:    movb %cl, %al
+; CHECK-NEXT:    xorl %edi, %edi
+; CHECK-NEXT:    testb %al, %al
+; CHECK-NEXT:    movl $-1, %edx
+; CHECK-NEXT:    cmovnel %edx, %edi
+; CHECK-NEXT:    callq callee2
+; CHECK-NEXT:    popq %rax
+; CHECK-NEXT:    retq
+entry:
+  %tobool = icmp ne i32 %x, 0
+  call void @callee2(i1 signext %tobool)
+  ret void
+}
+
+declare void @callee1(i1 zeroext)
+declare void @callee2(i1 signext)
+
+attributes #0 = { nounwind "target-cpu"="skylake-avx512" }