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; RUN: llc -march=bpfel -filetype=asm -o - %s | FileCheck -check-prefixes=CHECK %s
;
; Source:
; extern void foo(void) __attribute__((nomerge));
;
; void bar(long i) {
; if (i)
; foo();
; else
; foo();
; }
;
; Compilation flag:
; clang -target bpf -S -O2 -emit-llvm t.c -o t.ll
; The goal of the test is to check that 'nomerge' attribute
; preserves two calls to 'foo' from merging.
; CHECK: call foo
; CHECK: call foo
; Function Attrs: nounwind
define dso_local void @bar(i64 noundef %i) local_unnamed_addr #0 {
entry:
%tobool.not = icmp eq i64 %i, 0
br i1 %tobool.not, label %if.else, label %if.then
if.then: ; preds = %entry
tail call void @foo() #2
br label %if.end
if.else: ; preds = %entry
tail call void @foo() #2
br label %if.end
if.end: ; preds = %if.else, %if.then
ret void
}
declare dso_local void @foo() local_unnamed_addr #1
attributes #0 = { nounwind "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #1 = { "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #2 = { nomerge nounwind }
!llvm.module.flags = !{!0, !1}
!llvm.ident = !{!2}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 7, !"frame-pointer", i32 2}
!2 = !{!"clang version 17.0.0 (/home/eddy/work/llvm-project/clang bd66f4b1da304af8e5a890b3205ce6f3d76667ee)"}
|
