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Disallow YIELD and other allocated nop hints in pre-ARMv6 architectures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155983 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -258,16 +258,20 @@ def tNOP : T1pI<(outs), (ins), NoItinerary, "nop", "", []>,
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Requires<[IsThumb2]>;
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def tYIELD : T1pI<(outs), (ins), NoItinerary, "yield", "", []>,
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T1SystemEncoding<0x10>; // A8.6.410
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T1SystemEncoding<0x10>, // A8.6.410
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Requires<[IsThumb2]>;
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def tWFE : T1pI<(outs), (ins), NoItinerary, "wfe", "", []>,
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T1SystemEncoding<0x20>; // A8.6.408
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T1SystemEncoding<0x20>, // A8.6.408
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Requires<[IsThumb2]>;
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def tWFI : T1pI<(outs), (ins), NoItinerary, "wfi", "", []>,
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T1SystemEncoding<0x30>; // A8.6.409
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T1SystemEncoding<0x30>, // A8.6.409
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Requires<[IsThumb2]>;
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def tSEV : T1pI<(outs), (ins), NoItinerary, "sev", "", []>,
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T1SystemEncoding<0x40>; // A8.6.157
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T1SystemEncoding<0x40>, // A8.6.157
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Requires<[IsThumb2]>;
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// The imm operand $val can be used by a debugger to store more information
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// about the breakpoint.
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@ -635,13 +635,3 @@ _func:
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@ CHECK: uxth r1, r4 @ encoding: [0xa1,0xb2]
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@------------------------------------------------------------------------------
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@ WFE/WFI/YIELD
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@------------------------------------------------------------------------------
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wfe
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wfi
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yield
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@ CHECK: wfe @ encoding: [0x20,0xbf]
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@ CHECK: wfi @ encoding: [0x30,0xbf]
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@ CHECK: yield @ encoding: [0x10,0xbf]
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@ -138,3 +138,21 @@ error: invalid operand for instruction
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@ CHECK-ERRORS: error: source register must be the same as destination
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@ CHECK-ERRORS: add r2, sp, ip
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@ CHECK-ERRORS: ^
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@------------------------------------------------------------------------------
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@ WFE/WFI/YIELD - are not supported pre v6T2
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@------------------------------------------------------------------------------
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wfe
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wfi
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yield
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@ CHECK-ERRORS: error: instruction requires: thumb2
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@ CHECK-ERRORS: wfe
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@ CHECK-ERRORS: ^
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@ CHECK-ERRORS: error: instruction requires: thumb2
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@ CHECK-ERRORS: wfi
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@ CHECK-ERRORS: ^
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@ CHECK-ERRORS: error: instruction requires: thumb2
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@ CHECK-ERRORS: yield
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@ CHECK-ERRORS: ^
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@ -44,13 +44,6 @@
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nop
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@ CHECK: nop @ encoding: [0xc0,0x46]
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wfe
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wfi
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yield
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@ CHECK: wfe @ encoding: [0x20,0xbf]
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@ CHECK: wfi @ encoding: [0x30,0xbf]
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@ CHECK: yield @ encoding: [0x10,0xbf]
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cpsie aif
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@ CHECK: cpsie aif @ encoding: [0x67,0xb6]
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@ -516,15 +516,3 @@
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0xd7 0xb2
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0xa1 0xb2
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#------------------------------------------------------------------------------
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# WFE/WFI/YIELD
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#------------------------------------------------------------------------------
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# CHECK: wfe
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# CHECK: wfi
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# CHECK: yield
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0x20 0xbf
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0x30 0xbf
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0x10 0xbf
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