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; RUN: opt < %s -globalopt -S | FileCheck %s
; PR36546
; Check that musttail callee preserves its calling convention
define i32 @test(i32 %a) {
; CHECK: %ca = musttail call i32 @foo(i32 %a)
%ca = musttail call i32 @foo(i32 %a)
ret i32 %ca
}
; CHECK-LABEL: define internal i32 @foo(i32 %a)
define internal i32 @foo(i32 %a) {
ret i32 %a
}
; Check that musttail caller preserves its calling convention
define i32 @test2(i32 %a) {
%ca = call i32 @foo1(i32 %a)
ret i32 %ca
}
; CHECK-LABEL: define internal i32 @foo1(i32 %a)
define internal i32 @foo1(i32 %a) {
; CHECK: %ca = musttail call i32 @foo2(i32 %a)
%ca = musttail call i32 @foo2(i32 %a)
ret i32 %ca
}
; CHECK-LABEL: define internal i32 @foo2(i32 %a)
define internal i32 @foo2(i32 %a) {
ret i32 %a
}
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