1 files changed, 59 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/ppc64le-smallarg.ll b/test/CodeGen/PowerPC/ppc64le-smallarg.ll
new file mode 100644
index 0000000..fcb1e92
--- /dev/null
+++ b/test/CodeGen/PowerPC/ppc64le-smallarg.ll
@@ -0,0 +1,59 @@
+; Verify that small structures and float arguments are passed in the
+; least significant part of a stack slot doubleword.
+
+; RUN: llc < %s | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-n32:64"
+target triple = "powerpc64le-unknown-linux-gnu"
+
+%struct.large_arg = type { [8 x i64] }
+%struct.small_arg = type { i16, i8 }
+
+@gl = common global %struct.large_arg zeroinitializer, align 8
+@gs = common global %struct.small_arg zeroinitializer, align 2
+@gf = common global float 0.000000e+00, align 4
+
+define void @callee1(%struct.small_arg* noalias nocapture sret %agg.result, %struct.large_arg* byval nocapture readnone %pad, %struct.small_arg* byval nocapture readonly %x) {
+entry:
+  %0 = bitcast %struct.small_arg* %x to i32*
+  %1 = bitcast %struct.small_arg* %agg.result to i32*
+  %2 = load i32* %0, align 2
+  store i32 %2, i32* %1, align 2
+  ret void
+}
+; CHECK: @callee1
+; CHECK: lwz {{[0-9]+}}, 120(1)
+; CHECK: blr
+
+define void @caller1() {
+entry:
+  %tmp = alloca %struct.small_arg, align 2
+  call void @test1(%struct.small_arg* sret %tmp, %struct.large_arg* byval @gl, %struct.small_arg* byval @gs)
+  ret void
+}
+; CHECK: @caller1
+; CHECK: stw {{[0-9]+}}, 120(1)
+; CHECK: bl test1
+
+declare void @test1(%struct.small_arg* sret, %struct.large_arg* byval, %struct.small_arg* byval)
+
+define float @callee2(float %pad1, float %pad2, float %pad3, float %pad4, float %pad5, float %pad6, float %pad7, float %pad8, float %pad9, float %pad10, float %pad11, float %pad12, float %pad13, float %x) {
+entry:
+  ret float %x
+}
+; CHECK: @callee2
+; CHECK: lfs {{[0-9]+}}, 152(1)
+; CHECK: blr
+
+define void @caller2() {
+entry:
+  %0 = load float* @gf, align 4
+  %call = tail call float @test2(float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float %0)
+  ret void
+}
+; CHECK: @caller2
+; CHECK: stfs {{[0-9]+}}, 152(1)
+; CHECK: bl test2
+
+declare float @test2(float, float, float, float, float, float, float, float, float, float, float, float, float, float)
+