Hexagon: Use multiclass for gp-relative instructions.

Remove noV4T gp-relative instructions.

llvm-svn: 178246

1 files changed, 33 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/Hexagon/gp-rel.ll b/llvm/test/CodeGen/Hexagon/gp-rel.ll
new file mode 100644
index 00000000000..561869e8ef3
--- /dev/null
+++ b/llvm/test/CodeGen/Hexagon/gp-rel.ll
@@ -0,0 +1,33 @@
+; RUN: llc -march=hexagon -mcpu=hexagonv4 < %s | FileCheck %s
+; Check that gp-relative instructions are being generated.
+
+@a = common global i32 0, align 4
+@b = common global i32 0, align 4
+@c = common global i32 0, align 4
+
+define i32 @foo(i32 %p) #0 {
+entry:
+; CHECK: r{{[0-9]+}}{{ *}}={{ *}}memw(#a)
+; CHECK: r{{[0-9]+}}{{ *}}={{ *}}memw(#b)
+; CHECK: if{{ *}}(p{{[0-3]}}) memw(##c){{ *}}={{ *}}r{{[0-9]+}}
+  %0 = load i32* @a, align 4
+  %1 = load i32* @b, align 4
+  %add = add nsw i32 %1, %0
+  %cmp = icmp eq i32 %0, %1
+  br i1 %cmp, label %if.then, label %entry.if.end_crit_edge
+
+entry.if.end_crit_edge:
+  %.pre = load i32* @c, align 4
+  br label %if.end
+
+if.then:
+  %add1 = add nsw i32 %add, %0
+  store i32 %add1, i32* @c, align 4
+  br label %if.end
+
+if.end:
+  %2 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %add1, %if.then ]
+  %cmp2 = icmp eq i32 %add, %2
+  %sel1 = select i1 %cmp2, i32 %2, i32 %1
+  ret i32 %sel1
+}