From 5f402dadeebe61d82bc809d2017cae46af2cd131 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Mon, 15 Apr 2024 00:59:32 -0700
Subject: decl: Support variadic functions with no other parameters

---
 test/varargs+aarch64.qbe     | 10 ++++++++++
 test/varargs+riscv64.qbe     | 11 +++++++++++
 test/varargs+x86_64-sysv.c   |  8 ++++++++
 test/varargs+x86_64-sysv.qbe | 10 ++++++++++
 4 files changed, 39 insertions(+)

(limited to 'test')

diff --git a/test/varargs+aarch64.qbe b/test/varargs+aarch64.qbe
index 5b6e830..c444c85 100644
--- a/test/varargs+aarch64.qbe
+++ b/test/varargs+aarch64.qbe
@@ -45,3 +45,13 @@ function $f3(w %.1, ...) {
 @while_join.9
 	ret
 }
+export
+function $f4(...) {
+@start.10
+	%.1 =l alloc8 32
+@body.11
+	vastart %.1
+	%.2 =d vaarg %.1
+	%.3 =w vaarg %.1
+	ret
+}
diff --git a/test/varargs+riscv64.qbe b/test/varargs+riscv64.qbe
index 48638bb..1b0851e 100644
--- a/test/varargs+riscv64.qbe
+++ b/test/varargs+riscv64.qbe
@@ -49,3 +49,14 @@ function $f3(w %.1, ...) {
 	%.10 =l loadl %.3
 	ret
 }
+export
+function $f4(...) {
+@start.10
+	%.1 =l alloc8 8
+@body.11
+	vastart %.1
+	%.2 =d vaarg %.1
+	%.3 =w vaarg %.1
+	%.4 =l loadl %.1
+	ret
+}
diff --git a/test/varargs+x86_64-sysv.c b/test/varargs+x86_64-sysv.c
index 71bf1d3..dfa1b98 100644
--- a/test/varargs+x86_64-sysv.c
+++ b/test/varargs+x86_64-sysv.c
@@ -24,3 +24,11 @@ void f3(int n, ...) {
 	}
 	__builtin_va_end(ap);
 }
+
+void f4(...) {
+	__builtin_va_list ap;
+	__builtin_va_start(ap);
+	__builtin_va_arg(ap, double);
+	__builtin_va_arg(ap, int);
+	__builtin_va_end(ap);
+}
diff --git a/test/varargs+x86_64-sysv.qbe b/test/varargs+x86_64-sysv.qbe
index 46904b6..4fa8e7b 100644
--- a/test/varargs+x86_64-sysv.qbe
+++ b/test/varargs+x86_64-sysv.qbe
@@ -47,3 +47,13 @@ function $f3(w %.1, ...) {
 @while_join.9
 	ret
 }
+export
+function $f4(...) {
+@start.10
+	%.1 =l alloc8 24
+@body.11
+	vastart %.1
+	%.2 =d vaarg %.1
+	%.3 =w vaarg %.1
+	ret
+}
-- 
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