From: Hal Finkel <hfinkel@anl.gov>
Date: Tue, 1 Apr 2014 19:24:27 +0000 (+0000)
Subject: [PowerPC] Add some missing VSX bitcast patterns
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4a6c0afc523716ab6d290ee5eb1b050948a489a7;p=oota-llvm.git

[PowerPC] Add some missing VSX bitcast patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205352 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCInstrVSX.td b/lib/Target/PowerPC/PPCInstrVSX.td
index baf07cbe7bb..9cc919ebe38 100644
--- a/lib/Target/PowerPC/PPCInstrVSX.td
+++ b/lib/Target/PowerPC/PPCInstrVSX.td
@@ -758,6 +758,8 @@ def : Pat<(fma (fneg v4f32:$A), v4f32:$C, v4f32:$B),
 def : Pat<(fma v4f32:$A, (fneg v4f32:$C), v4f32:$B),
           (XVNMSUBASP $B, $C, $A)>;
 
+def : Pat<(v2f64 (bitconvert v4f32:$A)),
+          (COPY_TO_REGCLASS $A, VSRC)>;
 def : Pat<(v2f64 (bitconvert v4i32:$A)),
           (COPY_TO_REGCLASS $A, VSRC)>;
 def : Pat<(v2f64 (bitconvert v8i16:$A)),
@@ -765,6 +767,8 @@ def : Pat<(v2f64 (bitconvert v8i16:$A)),
 def : Pat<(v2f64 (bitconvert v16i8:$A)),
           (COPY_TO_REGCLASS $A, VSRC)>;
 
+def : Pat<(v4f32 (bitconvert v2f64:$A)),
+          (COPY_TO_REGCLASS $A, VRRC)>;
 def : Pat<(v4i32 (bitconvert v2f64:$A)),
           (COPY_TO_REGCLASS $A, VRRC)>;
 def : Pat<(v8i16 (bitconvert v2f64:$A)),
@@ -772,6 +776,8 @@ def : Pat<(v8i16 (bitconvert v2f64:$A)),
 def : Pat<(v16i8 (bitconvert v2f64:$A)),
           (COPY_TO_REGCLASS $A, VRRC)>;
 
+def : Pat<(v2i64 (bitconvert v4f32:$A)),
+          (COPY_TO_REGCLASS $A, VSRC)>;
 def : Pat<(v2i64 (bitconvert v4i32:$A)),
           (COPY_TO_REGCLASS $A, VSRC)>;
 def : Pat<(v2i64 (bitconvert v8i16:$A)),
@@ -779,6 +785,8 @@ def : Pat<(v2i64 (bitconvert v8i16:$A)),
 def : Pat<(v2i64 (bitconvert v16i8:$A)),
           (COPY_TO_REGCLASS $A, VSRC)>;
 
+def : Pat<(v4f32 (bitconvert v2i64:$A)),
+          (COPY_TO_REGCLASS $A, VRRC)>;
 def : Pat<(v4i32 (bitconvert v2i64:$A)),
           (COPY_TO_REGCLASS $A, VRRC)>;
 def : Pat<(v8i16 (bitconvert v2i64:$A)),
diff --git a/test/CodeGen/PowerPC/vsx.ll b/test/CodeGen/PowerPC/vsx.ll
index 9c37fe6d40d..f5ac577a75d 100644
--- a/test/CodeGen/PowerPC/vsx.ll
+++ b/test/CodeGen/PowerPC/vsx.ll
@@ -641,3 +641,11 @@ define <2 x i32> @test80(i32 %v) {
 ; CHECK: blr
 }
 
+define <2 x double> @test81(<4 x float> %b) {
+  %w = bitcast <4 x float> %b to <2 x double>
+  ret <2 x double> %w
+
+; CHECK-LABEL: @test81
+; CHECK: blr
+}
+