PPC: Mark vector FREM as Expand by default

Another bug found by llvm-stress! This fixes crashing with:
  LLVM ERROR: Cannot select: v4f32 = frem ...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185840 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 9c2856f24a42842fbf404cb89fd8b5cc26c360cf..685b082a435cfe9924767b861fbdd03a66287763 100644 (file)
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -392,6 +392,7 @@ PPCTargetLowering::PPCTargetLowering(PPCTargetMachine &TM)
       setOperationAction(ISD::UDIV, VT, Expand);
       setOperationAction(ISD::UREM, VT, Expand);
       setOperationAction(ISD::FDIV, VT, Expand);
+      setOperationAction(ISD::FREM, VT, Expand);
       setOperationAction(ISD::FNEG, VT, Expand);
       setOperationAction(ISD::FSQRT, VT, Expand);
       setOperationAction(ISD::FLOG, VT, Expand);

diff --git a/test/CodeGen/PowerPC/vector.ll b/test/CodeGen/PowerPC/vector.ll
index e4c3b0db17267b2de498716cae6fa50c54056390..859a85a14101d921dc7696207621ce46deb1b1e3 100644 (file)
--- a/test/CodeGen/PowerPC/vector.ll
+++ b/test/CodeGen/PowerPC/vector.ll
@@ -59,6 +59,14 @@ define void @test_div(%f8* %P, %f8* %Q, %f8* %S) {
         ret void
 }
 
+define void @test_rem(%f8* %P, %f8* %Q, %f8* %S) {
+        %p = load %f8* %P               ; <%f8> [#uses=1]
+        %q = load %f8* %Q               ; <%f8> [#uses=1]
+        %R = frem %f8 %p, %q            ; <%f8> [#uses=1]
+        store %f8 %R, %f8* %S
+        ret void
+}
+
 ;;; TEST VECTOR CONSTRUCTS
 
 define void @test_cst(%f4* %P, %f4* %S) {