Mercurial > hg > CbC > CbC_gcc
diff gcc/combine-stack-adj.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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--- a/gcc/combine-stack-adj.c Thu Oct 25 07:37:49 2018 +0900 +++ b/gcc/combine-stack-adj.c Thu Feb 13 11:34:05 2020 +0900 @@ -1,5 +1,5 @@ /* Combine stack adjustments. - Copyright (C) 1987-2018 Free Software Foundation, Inc. + Copyright (C) 1987-2020 Free Software Foundation, Inc. This file is part of GCC. @@ -133,7 +133,6 @@ && SET_SRC (this_rtx) == SET_DEST (this_rtx)) ; else if (GET_CODE (this_rtx) != CLOBBER - && GET_CODE (this_rtx) != CLOBBER_HIGH && GET_CODE (this_rtx) != USE) return NULL_RTX; } @@ -540,7 +539,7 @@ Also we need to be careful to not move stack pointer such that we create stack accesses outside the allocated area. We can combine an allocation into the first insn, - or a deallocation into the second insn. We can not + or a deallocation into the second insn. We cannot combine an allocation followed by a deallocation. The only somewhat frequent occurrence of the later is when