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43ee82f217
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
46 lines
1.2 KiB
LLVM
46 lines
1.2 KiB
LLVM
; RUN: llc -march=bpfel -show-mc-encoding < %s | FileCheck %s
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define i8 @mov(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: mov:
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; CHECK: r0 = r2 # encoding: [0xbf,0x20,0x00,0x00,0x00,0x00,0x00,0x00]
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; CHECK: exit # encoding: [0x95,0x00,0x00,0x00,0x00,0x00,0x00,0x00]
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ret i8 %b
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}
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define i8 @add(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: add:
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; CHECK: r0 = r1 # encoding: [0xbf,0x10,0x00,0x00,0x00,0x00,0x00,0x00]
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; CHECK: r0 += r2 # encoding: [0x0f,0x20,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = add i8 %a, %b
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ret i8 %1
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}
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define i8 @and(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: and:
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; CHECK: r0 &= r2 # encoding: [0x5f,0x20,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = and i8 %a, %b
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ret i8 %1
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}
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define i8 @bis(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: bis:
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; CHECK: r0 |= r2 # encoding: [0x4f,0x20,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = or i8 %a, %b
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ret i8 %1
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}
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define i8 @xorand(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: xorand:
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; CHECK: r2 ^= -1 # encoding: [0xa7,0x02,0x00,0x00,0xff,0xff,0xff,0xff]
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%1 = xor i8 %b, -1
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%2 = and i8 %a, %1
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ret i8 %2
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}
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define i8 @xor(i8 %a, i8 %b) nounwind {
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; CHECK-LABEL: xor:
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; CHECK: r0 ^= r2 # encoding: [0xaf,0x20,0x00,0x00,0x00,0x00,0x00,0x00]
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%1 = xor i8 %a, %b
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ret i8 %1
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}
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