You've already forked linux-packaging-mono
63 lines
1.4 KiB
LLVM
63 lines
1.4 KiB
LLVM
|
; RUN: llc < %s -march=bpf -verify-machineinstrs | FileCheck %s
|
||
|
|
;
|
||
|
|
; Source file:
|
||
|
|
; int b, c;
|
||
|
|
; int test() {
|
||
|
|
; int a = b;
|
||
|
|
; if (a)
|
||
|
|
; a = c;
|
||
|
|
; return a;
|
||
|
|
; }
|
||
|
|
@b = common local_unnamed_addr global i32 0, align 4
|
||
|
|
@c = common local_unnamed_addr global i32 0, align 4
|
||
|
|
|
||
|
|
; Function Attrs: norecurse nounwind readonly
|
||
|
|
define i32 @test() local_unnamed_addr #0 {
|
||
|
|
entry:
|
||
|
|
%0 = load i32, i32* @b, align 4
|
||
|
|
%tobool = icmp eq i32 %0, 0
|
||
|
|
%1 = load i32, i32* @c, align 4
|
||
|
|
%. = select i1 %tobool, i32 0, i32 %1
|
||
|
|
; CHECK: r1 = b
|
||
|
|
; CHECK: r1 = *(u32 *)(r1 + 0)
|
||
|
|
; CHECK: if r1 == 0 goto
|
||
|
|
ret i32 %.
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { norecurse nounwind readonly }
|
||
|
|
|
||
|
|
; test immediate out of 32-bit range
|
||
|
|
; Source file:
|
||
|
|
|
||
|
|
; unsigned long long
|
||
|
|
; load_word(void *buf, unsigned long long off)
|
||
|
|
; asm("llvm.bpf.load.word");
|
||
|
|
;
|
||
|
|
; int
|
||
|
|
; foo(void *buf)
|
||
|
|
; {
|
||
|
|
; unsigned long long sum = 0;
|
||
|
|
;
|
||
|
|
; sum += load_word(buf, 100);
|
||
|
|
; sum += load_word(buf, 104);
|
||
|
|
;
|
||
|
|
; if (sum != 0x1ffffffffULL)
|
||
|
|
; return ~0U;
|
||
|
|
;
|
||
|
|
; return 0;
|
||
|
|
;}
|
||
|
|
|
||
|
|
; Function Attrs: nounwind readonly
|
||
|
|
define i32 @foo(i8*) local_unnamed_addr #0 {
|
||
|
|
%2 = tail call i64 @llvm.bpf.load.word(i8* %0, i64 100)
|
||
|
|
%3 = tail call i64 @llvm.bpf.load.word(i8* %0, i64 104)
|
||
|
|
%4 = add i64 %3, %2
|
||
|
|
%5 = icmp ne i64 %4, 8589934591
|
||
|
|
; CHECK: r{{[0-9]+}} = 8589934591 ll
|
||
|
|
%6 = sext i1 %5 to i32
|
||
|
|
ret i32 %6
|
||
|
|
}
|
||
|
|
|
||
|
|
; Function Attrs: nounwind readonly
|
||
|
|
declare i64 @llvm.bpf.load.word(i8*, i64) #1
|