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; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -fast-isel | FileCheck %s
; Test calling function pointer passed in struct
; The fuction argument `h' in
; struct foo {
; void (*f) (void);
; int i;
; };
; void
; bar (struct foo h)
; {
; h.f ();
; }
; is passed in the 64-bit %rdi register. The `f' field is in the lower 32
; bits of %rdi register and the `i' field is in the upper 32 bits of %rdi
; register. We need to zero-extend %edi to %rdi before branching via %rdi.
define void @bar(i64 %h.coerce) nounwind {
entry:
%h.sroa.0.0.extract.trunc = trunc i64 %h.coerce to i32
%0 = inttoptr i32 %h.sroa.0.0.extract.trunc to void ()*
; CHECK: movl %edi, %e[[REG:.*]]
tail call void %0() nounwind
; CHECK: jmpq *%r[[REG]]
ret void
}
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