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authorDimitry Andric <dim@FreeBSD.org>2013-06-10 20:36:52 +0000
committerDimitry Andric <dim@FreeBSD.org>2013-06-10 20:36:52 +0000
commit59d6cff90eecf31cb3dd860c4e786674cfdd42eb (patch)
tree909310b2e05119d1d6efda049977042abbb58bb1 /test/CodeGen/SystemZ/asm-03.ll
parent4a16efa3e43e35f0cc9efe3a67f620f0017c3d36 (diff)
Notes
Diffstat (limited to 'test/CodeGen/SystemZ/asm-03.ll')
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diff --git a/test/CodeGen/SystemZ/asm-03.ll b/test/CodeGen/SystemZ/asm-03.ll
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index 0000000000000..a6f3f2a5cb605
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+++ b/test/CodeGen/SystemZ/asm-03.ll
@@ -0,0 +1,16 @@
+; Test the "S" asm constraint, which accepts addresses that have a base
+; and a 20-bit displacement.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+define void @f1(i64 %base) {
+; CHECK: f1:
+; CHECK: blah 0(%r2)
+; CHECK: br %r14
+ %addr = inttoptr i64 %base to i64 *
+ call void asm "blah $0", "=*S" (i64 *%addr)
+ ret void
+}
+
+; FIXME: at the moment the precise constraint is not passed down to
+; target code, so we must conservatively treat "S" as "Q".