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Pop and fill don't trigger StackOverflow. (#365)

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This commit is contained in:
Dan Gohman
2018-06-28 12:47:13 -07:00
committed by GitHub
parent 7bed3426a7
commit 99b9b96eee
5 changed files with 26 additions and 31 deletions
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5
lib/codegen/meta/isa/x86/recipes.py
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@@ -584,7 +584,6 @@ pushq = TailRecipe(
popq = TailRecipe(
'popq', NullAry, size=0, ins=(), outs=GPR,
emit='''
sink.trap(TrapCode::StackOverflow, func.srclocs[inst]);
PUT_OP(bits | (out_reg0 & 7), rex1(out_reg0), sink);
''')
@@ -1329,7 +1328,6 @@ fillSib32 = TailRecipe(
'fillSib32', Unary, size=6, ins=StackGPR32, outs=GPR,
clobbers_flags=False,
emit='''
sink.trap(TrapCode::StackOverflow, func.srclocs[inst]);
let base = stk_base(in_stk0.base);
PUT_OP(bits, rex2(base, out_reg0), sink);
modrm_sib_disp32(out_reg0, sink);
@@ -1342,7 +1340,6 @@ ffillSib32 = TailRecipe(
'ffillSib32', Unary, size=6, ins=StackFPR32, outs=FPR,
clobbers_flags=False,
emit='''
sink.trap(TrapCode::StackOverflow, func.srclocs[inst]);
let base = stk_base(in_stk0.base);
PUT_OP(bits, rex2(base, out_reg0), sink);
modrm_sib_disp32(out_reg0, sink);
@@ -1355,7 +1352,6 @@ regfill32 = TailRecipe(
'regfill32', RegFill, size=6, ins=StackGPR32, outs=(),
clobbers_flags=False,
emit='''
sink.trap(TrapCode::StackOverflow, func.srclocs[inst]);
let src = StackRef::sp(src, &func.stack_slots);
let base = stk_base(src.base);
PUT_OP(bits, rex2(base, dst), sink);
@@ -1369,7 +1365,6 @@ fregfill32 = TailRecipe(
'fregfill32', RegFill, size=6, ins=StackFPR32, outs=(),
clobbers_flags=False,
emit='''
sink.trap(TrapCode::StackOverflow, func.srclocs[inst]);
let src = StackRef::sp(src, &func.stack_slots);
let base = stk_base(src.base);
PUT_OP(bits, rex2(base, dst), sink);