Fix encoding of 'sf' and 'sfh' instructions.

llvm-svn: 103399

1 files changed, 26 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/CellSPU/sub_ops.ll b/llvm/test/CodeGen/CellSPU/sub_ops.ll
new file mode 100644
index 00000000000..f0c40d37ce9
--- /dev/null
+++ b/llvm/test/CodeGen/CellSPU/sub_ops.ll
@@ -0,0 +1,26 @@
+; RUN: llc < %s -march=cellspu | FileCheck %s
+
+define i32 @subword( i32 %param1, i32 %param2) {
+; Check ordering of registers ret=param1-param2 -> rt=rb-ra
+; CHECK-NOT:	sf	$3, $3, $4
+; CHECK:	sf	$3, $4, $3
+	%1 = sub i32 %param1, %param2
+	ret i32 %1
+}
+
+define i16 @subhword( i16 %param1, i16 %param2) {
+; Check ordering of registers ret=param1-param2 -> rt=rb-ra
+; CHECK-NOT:	sfh	$3, $3, $4
+; CHECK:	sfh	$3, $4, $3
+	%1 = sub i16 %param1, %param2
+	ret i16 %1
+}
+
+define float @subfloat( float %param1, float %param2) {
+; Check ordering of registers ret=param1-param2 -> rt=ra-rb 
+; (yes this is reverse of i32 instruction)
+; CHECK-NOT:	fs	$3, $4, $3 
+; CHECK:	fs	$3, $3, $4
+	%1 = fsub float %param1, %param2
+	ret float %1
+}