[mips] Handle undef when extracting subregs from FP64 registers.

[oota-llvm.git] / test / CodeGen / Mips / llvm-ir / call.ll

diff --git a/test/CodeGen/Mips/llvm-ir/call.ll b/test/CodeGen/Mips/llvm-ir/call.ll
index 112ab8ee8c7fea9bfad276f038638fa3f78cac4e..6c4f08daee97d727e05994da589af7ba1337b825 100644 (file)
--- a/test/CodeGen/Mips/llvm-ir/call.ll
+++ b/test/CodeGen/Mips/llvm-ir/call.ll
@@ -6,6 +6,7 @@
 ; RUN: llc -march=mips   -mcpu=mips32r3 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
 ; RUN: llc -march=mips   -mcpu=mips32r5 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
 ; RUN: llc -march=mips   -mcpu=mips32r6 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
+; RUN: llc -march=mips   -mcpu=mips32r6 -mattr=+fp64,+nooddspreg -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=O32
 ; RUN: llc -march=mips64 -mcpu=mips4    -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
 ; RUN: llc -march=mips64 -mcpu=mips64   -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
 ; RUN: llc -march=mips64 -mcpu=mips64r2 -enable-mips-tail-calls < %s | FileCheck %s -check-prefix=ALL -check-prefix=N64
@@ -168,3 +169,16 @@ define float @tail_indirect_call_float_void(float ()* %addr) {
   %1 = tail call float %addr()
   ret float %1
 }
+
+; Check that passing undef as a double value doesn't cause machine code errors
+; for FP64.
+declare hidden void @undef_double(i32 %this, double %volume) unnamed_addr align 2
+
+define hidden void @thunk_undef_double(i32 %this, double %volume) unnamed_addr align 2 {
+; ALL-LABEL: thunk_undef_double:
+; O32: # implicit-def: A2
+; O32: # implicit-def: A3
+; ALL: jr $25
+  tail call void @undef_double(i32 undef, double undef) #8
+  ret void
+}