Files
clang-p2996/llvm/test/CodeGen/X86/x32-function_pointer-2.ll
Harald van Dijk cdac34bd47 [X86] Zero-extend pointers to i64 for x86_64
For LP64 mode, this has no effect as pointers are already 64 bits.
For ILP32 mode (x32), this extension is specified by the ABI.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D91338
2020-11-30 18:51:23 +00:00

22 lines
509 B
LLVM

; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -fast-isel | FileCheck %s
; Test call function pointer with function argument
;
; void bar (void * h, void (*foo) (void *))
; {
; foo (h);
; foo (h);
; }
define void @bar(i8* %h, void (i8*)* nocapture %foo) nounwind {
entry:
tail call void %foo(i8* %h) nounwind
; CHECK: mov{{l|q}} %{{e|r}}si,
; CHECK: callq *%r
tail call void %foo(i8* %h) nounwind
; CHECK: jmpq *%r
ret void
}