mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-02-01 05:01:59 +01:00
75e988b98f
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
49 lines
874 B
LLVM
49 lines
874 B
LLVM
; RUN: not llc < %s -march=bpfel | FileCheck %s
|
|
|
|
define void @test() #0 {
|
|
entry:
|
|
; CHECK: test:
|
|
|
|
; CHECK: call f_i16
|
|
; CHECK: *(u16 *)(r1 + 0) = r0
|
|
%0 = call i16 @f_i16()
|
|
store volatile i16 %0, i16* @g_i16
|
|
|
|
; CHECK: call f_i32
|
|
; CHECK: *(u32 *)(r1 + 0) = r0
|
|
%1 = call i32 @f_i32()
|
|
store volatile i32 %1, i32* @g_i32
|
|
|
|
; CHECK: call f_i64
|
|
; CHECK: *(u64 *)(r1 + 0) = r0
|
|
%2 = call i64 @f_i64()
|
|
store volatile i64 %2, i64* @g_i64
|
|
|
|
ret void
|
|
}
|
|
|
|
@g_i16 = common global i16 0, align 2
|
|
@g_i32 = common global i32 0, align 2
|
|
@g_i64 = common global i64 0, align 2
|
|
|
|
define i16 @f_i16() #0 {
|
|
; CHECK: f_i16:
|
|
; CHECK: r0 = 1
|
|
; CHECK: exit
|
|
ret i16 1
|
|
}
|
|
|
|
define i32 @f_i32() #0 {
|
|
; CHECK: f_i32:
|
|
; CHECK: r0 = 16909060
|
|
; CHECK: exit
|
|
ret i32 16909060
|
|
}
|
|
|
|
define i64 @f_i64() #0 {
|
|
; CHECK: f_i64:
|
|
; CHECK: r0 = 72623859790382856 ll
|
|
; CHECK: exit
|
|
ret i64 72623859790382856
|
|
}
|