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-rw-r--r--test/CodeGen/X86/absolute-bit-mask-fastisel.ll28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/X86/absolute-bit-mask-fastisel.ll b/test/CodeGen/X86/absolute-bit-mask-fastisel.ll
new file mode 100644
index 000000000000..34e92e804572
--- /dev/null
+++ b/test/CodeGen/X86/absolute-bit-mask-fastisel.ll
@@ -0,0 +1,28 @@
+; RUN: llc < %s | FileCheck %s
+; RUN: llc -relocation-model=pic < %s | FileCheck %s
+
+; Regression test for PR38200
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+@bit_mask8 = external hidden global i8, !absolute_symbol !0
+
+declare void @f()
+
+define void @foo8(i8* %ptr) noinline optnone {
+ %load = load i8, i8* %ptr
+ ; CHECK: movl $bit_mask8, %ecx
+ %and = and i8 %load, ptrtoint (i8* @bit_mask8 to i8)
+ %icmp = icmp eq i8 %and, 0
+ br i1 %icmp, label %t, label %f
+
+t:
+ call void @f()
+ ret void
+
+f:
+ ret void
+}
+
+!0 = !{i64 0, i64 256}