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ARM: Define generic HINT instruction.

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The NOP, WFE, WFI, SEV and YIELD instructions are all hints w/
a different immediate value in bits [7,0]. Define a generic HINT
instruction and refactor NOP, WFI, WFI, SEV and YIELD to be
assembly aliases of that.

rdar://11600518

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158674 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach
2012-06-18 19:45:50 +00:00
parent 325bd661ff
commit 7e99a60857
6 changed files with 77 additions and 55 deletions
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24
test/MC/ARM/basic-arm-instructions.s
View File

@@ -2711,10 +2711,22 @@ Lforward:
wfilt
yield
yieldne
hint #5
hint #4
hint #3
hint #2
hint #1
hint #0
@ CHECK: wfe @ encoding: [0x02,0xf0,0x20,0xe3]
@ CHECK: wfehi @ encoding: [0x02,0xf0,0x20,0x83]
@ CHECK: wfi @ encoding: [0x03,0xf0,0x20,0xe3]
@ CHECK: wfilt @ encoding: [0x03,0xf0,0x20,0xb3]
@ CHECK: yield @ encoding: [0x01,0xf0,0x20,0xe3]
@ CHECK: yieldne @ encoding: [0x01,0xf0,0x20,0x13]
@ CHECK: wfe @ encoding: [0x02,0xf0,0x20,0xe3]
@ CHECK: wfehi @ encoding: [0x02,0xf0,0x20,0x83]
@ CHECK: wfi @ encoding: [0x03,0xf0,0x20,0xe3]
@ CHECK: wfilt @ encoding: [0x03,0xf0,0x20,0xb3]
@ CHECK: yield @ encoding: [0x01,0xf0,0x20,0xe3]
@ CHECK: yieldne @ encoding: [0x01,0xf0,0x20,0x13]
@ CHECK: hint #5 @ encoding: [0x05,0xf0,0x20,0xe3]
@ CHECK: sev @ encoding: [0x04,0xf0,0x20,0xe3]
@ CHECK: wfi @ encoding: [0x03,0xf0,0x20,0xe3]
@ CHECK: wfe @ encoding: [0x02,0xf0,0x20,0xe3]
@ CHECK: yield @ encoding: [0x01,0xf0,0x20,0xe3]
@ CHECK: nop @ encoding: [0x00,0xf0,0x20,0xe3]

16
test/MC/ARM/basic-thumb2-instructions.s
View File

@@ -3369,7 +3369,7 @@ _func:
@ CHECK: uxth.w r7, r8 @ encoding: [0x1f,0xfa,0x88,0xf7]
@------------------------------------------------------------------------------
@ WFE/WFI/YIELD
@ WFE/WFI/YIELD/HINT
@------------------------------------------------------------------------------
wfe
wfi
@@ -3378,6 +3378,13 @@ _func:
wfelt
wfige
yieldlt
hint #5
hint.w #5
hint.w #4
hint #3
hint #2
hint #1
hint #0
@ CHECK: wfe @ encoding: [0x20,0xbf]
@ CHECK: wfi @ encoding: [0x30,0xbf]
@@ -3386,6 +3393,13 @@ _func:
@ CHECK: wfelt @ encoding: [0x20,0xbf]
@ CHECK: wfige @ encoding: [0x30,0xbf]
@ CHECK: yieldlt @ encoding: [0x10,0xbf]
@ CHECK: hint #5 @ encoding: [0xaf,0xf3,0x05,0x80]
@ CHECK: hint #5 @ encoding: [0xaf,0xf3,0x05,0x80]
@ CHECK: sev.w @ encoding: [0xaf,0xf3,0x04,0x80]
@ CHECK: wfi.w @ encoding: [0xaf,0xf3,0x03,0x80]
@ CHECK: wfe.w @ encoding: [0xaf,0xf3,0x02,0x80]
@ CHECK: yield.w @ encoding: [0xaf,0xf3,0x01,0x80]
@ CHECK: nop.w @ encoding: [0xaf,0xf3,0x00,0x80]
@------------------------------------------------------------------------------