[InlineFunction] Preserve calling convention when forwarding VarArgs.
Reviewers: efriedma, rnk, davide
Reviewed By: rnk, davide
Differential Revision: https://reviews.llvm.org/D41556
llvm-svn: 321943
diff --git a/llvm/test/Transforms/Inline/inline-varargs.ll b/llvm/test/Transforms/Inline/inline-varargs.ll
index b46821a..215f400 100644
--- a/llvm/test/Transforms/Inline/inline-varargs.ll
+++ b/llvm/test/Transforms/Inline/inline-varargs.ll
@@ -3,6 +3,7 @@
declare void @ext_method(i8*, i32)
declare signext i16 @vararg_fn(...) #0
+declare "cc 9" void @vararg_fn_cc9(i8* %p, ...)
define linkonce_odr void @thunk(i8* %this, ...) {
%this_adj = getelementptr i8, i8* %this, i32 4
@@ -41,6 +42,18 @@
; CHECK-LABEL: define void @test_caller_3
; CHECK: call signext i16 (...) @vararg_fn()
+define void @test_preserve_cc(i8* %p, ...) {
+ musttail call "cc 9" void (i8*, ...) @vararg_fn_cc9(i8* %p, ...)
+ ret void
+}
+
+define void @test_caller_preserve_cc(i8* %p, i8* %q) {
+ call void (i8*, ...) @test_preserve_cc(i8* %p, i8* %q)
+ ret void
+}
+; CHECK-LABEL: define void @test_caller_preserve_cc
+; CHECK: call "cc 9" void (i8*, ...) @vararg_fn_cc9(i8* %p, i8* %q)
+
define internal i32 @varg_accessed(...) {
entry:
%vargs = alloca i8*, align 8