llvm-project/llvm/test/CodeGen/BPF/rodata_6.ll

26 lines
684 B
LLVM

; RUN: llc -march=bpf < %s | FileCheck %s
;
; Source code:
; struct t1 { int a; };
; struct t1 data = { .a = 3 };
; int foo(void) {
; return data.a + 20;
; }
; Compilation flag:
; clang -target bpf -O2 -S -emit-llvm test.c
%struct.t1 = type { i32 }
@data = dso_local local_unnamed_addr global %struct.t1 { i32 3 }, align 4
; Function Attrs: norecurse nounwind readonly
define dso_local i32 @foo() local_unnamed_addr {
entry:
%0 = load i32, i32* getelementptr inbounds (%struct.t1, %struct.t1* @data, i64 0, i32 0), align 4
%add = add nsw i32 %0, 20
; CHECK: [[REG1:r[0-9]+]] = data ll
; CHECK: r0 = *(u32 *)([[REG1]] + 0)
; CHECK: r0 += 20
ret i32 %add
}