diff options
Diffstat (limited to 'gcc/config/i386/i386.c')
| -rw-r--r-- | gcc/config/i386/i386.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index bb4c22d914d..2c71e1e88d4 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -521,6 +521,7 @@ const int x86_sse_typeless_stores = m_ATHLON_K8; const int x86_sse_load0_by_pxor = m_PPRO | m_PENT4; const int x86_use_ffreep = m_ATHLON_K8; const int x86_rep_movl_optimal = m_386 | m_PENT | m_PPRO | m_K6; +const int x86_inter_unit_moves = ~(m_ATHLON_K8); /* In case the average insn count for single function invocation is lower than this constant, emit fast (but longer) prologue and @@ -14386,10 +14387,10 @@ ix86_secondary_memory_needed (class1, class2, mode, strict) return 1; } return (FLOAT_CLASS_P (class1) != FLOAT_CLASS_P (class2) - || (SSE_CLASS_P (class1) != SSE_CLASS_P (class2) - && (mode) != SImode) - || (MMX_CLASS_P (class1) != MMX_CLASS_P (class2) - && (mode) != SImode)); + || ((SSE_CLASS_P (class1) != SSE_CLASS_P (class2) + || MMX_CLASS_P (class1) != MMX_CLASS_P (class2)) + && ((mode != SImode && (mode != DImode || !TARGET_64BIT)) + || (!TARGET_INTER_UNIT_MOVES && !optimize_size)))); } /* Return the cost of moving data from a register in class CLASS1 to one in class CLASS2. |