diff options
Diffstat (limited to 'gcc/global.c')
| -rw-r--r-- | gcc/global.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/global.c b/gcc/global.c index 12641a60cba..ca9f4fb1a8a 100644 --- a/gcc/global.c +++ b/gcc/global.c @@ -1490,7 +1490,7 @@ build_insn_chain (void) /* We can model subregs, but not if they are wrapped in ZERO_EXTRACTS. */ if (GET_CODE (reg) == SUBREG - && !DF_REF_FLAGS_IS_SET (def, DF_REF_EXTRACT)) + && !DF_REF_FLAGS_IS_SET (def, DF_REF_ZERO_EXTRACT)) { unsigned int start = SUBREG_BYTE (reg); unsigned int last = start @@ -1503,7 +1503,7 @@ build_insn_chain (void) regno, reg); if (!DF_REF_FLAGS_IS_SET - (def, DF_REF_STRICT_LOWER_PART)) + (def, DF_REF_STRICT_LOW_PART)) { /* Expand the range to cover entire words. Bytes added here are "don't care". */ @@ -1566,7 +1566,7 @@ build_insn_chain (void) precisely so we do not need to look at the fabricated use. */ if (DF_REF_FLAGS_IS_SET (use, DF_REF_READ_WRITE) - && !DF_REF_FLAGS_IS_SET (use, DF_REF_EXTRACT) + && !DF_REF_FLAGS_IS_SET (use, DF_REF_ZERO_EXTRACT) && DF_REF_FLAGS_IS_SET (use, DF_REF_SUBREG)) continue; @@ -1585,7 +1585,8 @@ build_insn_chain (void) if (regno < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) { if (GET_CODE (reg) == SUBREG - && !DF_REF_FLAGS_IS_SET (use, DF_REF_EXTRACT)) + && !DF_REF_FLAGS_IS_SET (use, + DF_REF_SIGN_EXTRACT | DF_REF_ZERO_EXTRACT)) { unsigned int start = SUBREG_BYTE (reg); unsigned int last = start |