1 files changed, 46 insertions, 0 deletions
diff --git a/test/CodeGen/Mips/cconv/return-hard-float.ll b/test/CodeGen/Mips/cconv/return-hard-float.ll
new file mode 100644
index 0000000..371b3a5
--- /dev/null
+++ b/test/CodeGen/Mips/cconv/return-hard-float.ll
@@ -0,0 +1,46 @@
+; RUN: llc -mtriple=mips-linux-gnu -relocation-model=static < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+; RUN: llc -mtriple=mipsel-linux-gnu -relocation-model=static < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+
+; RUN-TODO: llc -mtriple=mips64-linux-gnu -relocation-model=static -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+; RUN-TODO: llc -mtriple=mips64el-linux-gnu -relocation-model=static -mattr=-n64,+o32 < %s | FileCheck --check-prefix=ALL --check-prefix=O32 %s
+
+; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
+; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -mattr=-n64,+n32 < %s | FileCheck --check-prefix=ALL --check-prefix=N32 %s
+
+; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
+; RUN: llc -mtriple=mips64el-linux-gnu -relocation-model=static -mattr=-n64,+n64 < %s | FileCheck --check-prefix=ALL --check-prefix=N64 %s
+
+; Test the float returns for all ABI's and byte orders as specified by
+; section 5 of MD00305 (MIPS ABIs Described).
+
+; We only test Linux because other OS's use different relocations and I don't
+; know if this is correct.
+
+@float = global float zeroinitializer
+@double = global double zeroinitializer
+
+define float @retfloat() nounwind {
+entry:
+        %0 = load volatile float* @float
+        ret float %0
+}
+
+; ALL-LABEL: retfloat:
+; O32-DAG:           lui [[R1:\$[0-9]+]], %hi(float)
+; O32-DAG:           lwc1 $f0, %lo(float)([[R1]])
+; N32-DAG:           lui [[R1:\$[0-9]+]], %hi(float)
+; N32-DAG:           lwc1 $f0, %lo(float)([[R1]])
+; N64-DAG:           ld  [[R1:\$[0-9]+]], %got_disp(float)($1)
+; N64-DAG:           lwc1 $f0, 0([[R1]])
+
+define double @retdouble() nounwind {
+entry:
+        %0 = load volatile double* @double
+        ret double %0
+}
+
+; ALL-LABEL: retdouble:
+; O32-DAG:           ldc1 $f0, %lo(double)([[R1:\$[0-9]+]])
+; N32-DAG:           ldc1 $f0, %lo(double)([[R1:\$[0-9]+]])
+; N64-DAG:           ld  [[R1:\$[0-9]+]], %got_disp(double)($1)
+; N64-DAG:           ldc1 $f0, 0([[R1]])