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| author | Yonghong Song <yhs@fb.com> | 2017-09-11 23:43:35 +0000 |
|---|---|---|
| committer | Yonghong Song <yhs@fb.com> | 2017-09-11 23:43:35 +0000 |
| commit | be9c00347fa7dcfb78f9f3a6c6c61a00a9071d31 (patch) | |
| tree | 2803940d7947fbaa96faf1b40254362b90118cd1 /llvm/test/CodeGen/BPF/cc_args.ll | |
| parent | 424aac368782c99537ab36cdf2f803d9ceebd8a5 (diff) | |
| download | bcm5719-llvm-be9c00347fa7dcfb78f9f3a6c6c61a00a9071d31.tar.gz bcm5719-llvm-be9c00347fa7dcfb78f9f3a6c6c61a00a9071d31.zip | |
bpf: add " ll" in the LD_IMM64 asmstring
This partially revert previous fix in commit f5858045aa0b
("bpf: proper print imm64 expression in inst printer").
In that commit, the original suffix "ll" is removed from
LD_IMM64 asmstring. In the customer print method, the "ll"
suffix is printed if the rhs is an immediate. For example,
"r2 = 5ll" => "r2 = 5ll", and "r3 = varll" => "r3 = var".
This has an issue though for assembler. Since assembler
relies on asmstring to do pattern matching, it will not
be able to distiguish between "mov r2, 5" and
"ld_imm64 r2, 5" since both asmstring is "r2 = 5".
In such cases, the assembler uses 64bit load for all
"r = <val>" asm insts.
This patch adds back " ll" suffix for ld_imm64 with one
additional space for "#reg = #global_var" case.
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
llvm-svn: 312978
Diffstat (limited to 'llvm/test/CodeGen/BPF/cc_args.ll')
| -rw-r--r-- | llvm/test/CodeGen/BPF/cc_args.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/BPF/cc_args.ll b/llvm/test/CodeGen/BPF/cc_args.ll index a2ac03f0da1..6a0a07ae8e8 100644 --- a/llvm/test/CodeGen/BPF/cc_args.ll +++ b/llvm/test/CodeGen/BPF/cc_args.ll @@ -12,7 +12,7 @@ entry: ; CHECK: call f_i32 call void @f_i32(i32 12345678) -; CHECK: r1 = 72623859790382856ll # encoding: [0x18,0x01,0x00,0x00,0x08,0x07,0x06,0x05,0x00,0x00,0x00,0x00,0x04,0x03,0x02,0x01] +; CHECK: r1 = 72623859790382856 ll # encoding: [0x18,0x01,0x00,0x00,0x08,0x07,0x06,0x05,0x00,0x00,0x00,0x00,0x04,0x03,0x02,0x01] ; CHECK: call f_i64 call void @f_i64(i64 72623859790382856) @@ -28,7 +28,7 @@ entry: call void @f_i16_i32_i16(i16 2, i32 3, i16 4) ; CHECK: r1 = 5 -; CHECK: r2 = 7262385979038285ll +; CHECK: r2 = 7262385979038285 ll ; CHECK: r3 = 6 ; CHECK: call f_i16_i64_i16 call void @f_i16_i64_i16(i16 5, i64 7262385979038285, i16 6) |
