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llvm-mirror/test/CodeGen/BPF/basictest.ll
Jonas Paulsson 43ee82f217 [BPF] Return true in enableMultipleCopyHints().
Enable multiple COPY hints to eliminate more COPYs during register allocation.

Note that this is something all targets should do, see
https://reviews.llvm.org/D38128.

Review: Yonghong Song
llvm-svn: 325457
2018-02-18 10:09:54 +00:00

29 lines
597 B
LLVM

; RUN: llc < %s -march=bpfel | FileCheck %s
define i32 @test0(i32 %X) {
%tmp.1 = add i32 %X, 1
ret i32 %tmp.1
; CHECK-LABEL: test0:
; CHECK: r0 += 1
}
; CHECK-LABEL: store_imm:
; CHECK: *(u32 *)(r1 + 0) = r{{[03]}}
; CHECK: *(u32 *)(r2 + 4) = r{{[03]}}
define i32 @store_imm(i32* %a, i32* %b) {
entry:
store i32 0, i32* %a, align 4
%0 = getelementptr inbounds i32, i32* %b, i32 1
store i32 0, i32* %0, align 4
ret i32 0
}
@G = external global i8
define zeroext i8 @loadG() {
%tmp = load i8, i8* @G
ret i8 %tmp
; CHECK-LABEL: loadG:
; CHECK: r1 =
; CHECK: r0 = *(u8 *)(r1 + 0)
}