[Mesa-dev] [PATCH] R600/SI: Add a pattern for i32 anyext

[Tom Stellard]

From: Tom Stellard <thomas.stellard at amd.com>

---
 lib/Target/R600/SIInstructions.td |  7 +++++--
 test/CodeGen/R600/anyext.ll       | 14 ++++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 test/CodeGen/R600/anyext.ll

diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index ac9b073..9da05c3 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -1840,11 +1840,14 @@ def : Pat <
   (V_CNDMASK_B32_e64 (i32 0), (i32 -1), $src0)
 >;
 
-def : Pat <
-  (i32 (zext i1:$src0)),
+class Ext32Pat <SDNode ext> : Pat <
+  (i32 (ext i1:$src0)),
   (V_CNDMASK_B32_e64 (i32 0), (i32 1), $src0)
 >;
 
+def : Ext32Pat <zext>;
+def : Ext32Pat <anyext>;
+
 // 1. Offset as 8bit DWORD immediate
 def : Pat <
   (SIload_constant i128:$sbase, IMM8bitDWORD:$offset),
diff --git a/test/CodeGen/R600/anyext.ll b/test/CodeGen/R600/anyext.ll
new file mode 100644
index 0000000..bbe5d0a
--- /dev/null
+++ b/test/CodeGen/R600/anyext.ll
@@ -0,0 +1,14 @@
+; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck %s
+
+; CHECK-LABEL: @anyext_i1_i32
+; CHECK: V_CNDMASK_B32_e64
+define void @anyext_i1_i32(i32 addrspace(1)* %out, i32 %cond) {
+entry:
+  %0 = icmp eq i32 %cond, 0
+  %1 = zext i1 %0 to i8
+  %2 = xor i8 %1, -1
+  %3 = and i8 %2, 1
+  %4 = zext i8 %3 to i32
+  store i32 %4, i32 addrspace(1)* %out
+  ret void
+}
-- 
1.8.1.5