[PowerPC][NFC] Add tests for variadic functions on PPC64

diff --git a/llvm/test/CodeGen/PowerPC/ppc64-varargs.ll b/llvm/test/CodeGen/PowerPC/ppc64-varargs.ll
new file mode 100644 (file)
index 0000000..56816ae
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/ppc64-varargs.ll
@@ -0,0 +1,76 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -ppc-asm-full-reg-names -verify-machineinstrs -mtriple=powerpc64 \
+; RUN:   < %s | FileCheck --check-prefix=BE %s
+; RUN: llc -ppc-asm-full-reg-names -verify-machineinstrs -mtriple=powerpc64le \
+; RUN:   < %s | FileCheck --check-prefix=LE %s
+
+define i32 @f(...) nounwind {
+; BE-LABEL: f:
+; BE:       # %bb.0: # %entry
+; BE-NEXT:    mr r11, r3
+; BE-NEXT:    li r3, 0
+; BE-NEXT:    std r11, 48(r1)
+; BE-NEXT:    std r4, 56(r1)
+; BE-NEXT:    std r5, 64(r1)
+; BE-NEXT:    std r6, 72(r1)
+; BE-NEXT:    std r7, 80(r1)
+; BE-NEXT:    std r8, 88(r1)
+; BE-NEXT:    std r9, 96(r1)
+; BE-NEXT:    std r10, 104(r1)
+; BE-NEXT:    blr
+;
+; LE-LABEL: f:
+; LE:       # %bb.0: # %entry
+; LE-NEXT:    std r3, 32(r1)
+; LE-NEXT:    li r3, 0
+; LE-NEXT:    std r4, 40(r1)
+; LE-NEXT:    std r5, 48(r1)
+; LE-NEXT:    std r6, 56(r1)
+; LE-NEXT:    std r7, 64(r1)
+; LE-NEXT:    std r8, 72(r1)
+; LE-NEXT:    std r9, 80(r1)
+; LE-NEXT:    std r10, 88(r1)
+; LE-NEXT:    blr
+entry:
+  ret i32 0
+}
+
+define i32 @f1(...) nounwind {
+; BE-LABEL: f1:
+; BE:       # %bb.0: # %entry
+; BE-NEXT:    mr r11, r3
+; BE-NEXT:    addi r12, r1, 48
+; BE-NEXT:    li r3, 0
+; BE-NEXT:    std r11, 48(r1)
+; BE-NEXT:    std r4, 56(r1)
+; BE-NEXT:    std r5, 64(r1)
+; BE-NEXT:    std r6, 72(r1)
+; BE-NEXT:    std r7, 80(r1)
+; BE-NEXT:    std r8, 88(r1)
+; BE-NEXT:    std r9, 96(r1)
+; BE-NEXT:    std r10, 104(r1)
+; BE-NEXT:    std r12, -8(r1)
+; BE-NEXT:    blr
+;
+; LE-LABEL: f1:
+; LE:       # %bb.0: # %entry
+; LE-NEXT:    std r3, 32(r1)
+; LE-NEXT:    std r4, 40(r1)
+; LE-NEXT:    addi r4, r1, 32
+; LE-NEXT:    li r3, 0
+; LE-NEXT:    std r5, 48(r1)
+; LE-NEXT:    std r6, 56(r1)
+; LE-NEXT:    std r7, 64(r1)
+; LE-NEXT:    std r8, 72(r1)
+; LE-NEXT:    std r9, 80(r1)
+; LE-NEXT:    std r10, 88(r1)
+; LE-NEXT:    std r4, -8(r1)
+; LE-NEXT:    blr
+entry:
+  %va = alloca i8*, align 8
+  %va.cast = bitcast i8** %va to i8*
+  call void @llvm.va_start(i8* %va.cast)
+  ret i32 0
+}
+
+declare void @llvm.va_start(i8*) nounwind