diff options
Diffstat (limited to 'packages/gcc/gcc-4.2.4/arm-crunch-saveregs.patch')
| -rw-r--r-- | packages/gcc/gcc-4.2.4/arm-crunch-saveregs.patch | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/packages/gcc/gcc-4.2.4/arm-crunch-saveregs.patch b/packages/gcc/gcc-4.2.4/arm-crunch-saveregs.patch new file mode 100644 index 0000000000..531ae86610 --- /dev/null +++ b/packages/gcc/gcc-4.2.4/arm-crunch-saveregs.patch @@ -0,0 +1,153 @@ +diff -ruN /home/hwilliams/openembedded/build/tmp/work/ep9312-angstrom-linux-gnueabi/gcc-cross-4.1.2-r0/gcc-4.1.2/gcc/config/arm/arm.c gcc-4.1.2/gcc/config/arm/arm.c +--- /home/hwilliams/openembedded/build/tmp/work/ep9312-angstrom-linux-gnueabi/gcc-cross-4.1.2-r0/gcc-4.1.2/gcc/config/arm/arm.c 2007-05-09 16:32:29.000000000 +1000 ++++ gcc-4.1.2/gcc/config/arm/arm.c 2007-05-15 09:39:41.000000000 +1000 +@@ -426,7 +435,7 @@ + #define FL_STRONG (1 << 8) /* StrongARM */ + #define FL_ARCH5E (1 << 9) /* DSP extensions to v5 */ + #define FL_XSCALE (1 << 10) /* XScale */ +-#define FL_CIRRUS (1 << 11) /* Cirrus/DSP. */ ++#define FL_CIRRUS (1 << 11) /* Cirrus Crunch coprocessor. */ + #define FL_ARCH6 (1 << 12) /* Architecture rel 6. Adds + media instructions. */ + #define FL_VFPV2 (1 << 13) /* Vector Floating Point V2. */ +@@ -490,7 +499,7 @@ + /* Nonzero if this chip is a StrongARM. */ + int arm_tune_strongarm = 0; + +-/* Nonzero if this chip is a Cirrus variant. */ ++/* Nonzero if this chip supports Cirrus Crunch coprocessor. */ + int arm_arch_cirrus = 0; + + /* Nonzero if this chip supports Intel Wireless MMX technology. */ +@@ -1184,7 +1193,8 @@ + else + */ + if (arm_arch_cirrus) +- arm_fpu_arch = FPUTYPE_MAVERICK; ++ /* Cirrus crunch coprocessor still requires soft-float division. */ ++ arm_fpu_arch = FPUTYPE_MAVERICK; + else + arm_fpu_arch = FPUTYPE_FPA_EMU2; + #endif +@@ -1567,6 +1577,9 @@ + if (regs_ever_live[regno] && !call_used_regs[regno]) + return 0; + ++ if (TARGET_MAVERICK) ++ return 0; ++ + if (TARGET_REALLY_IWMMXT) + for (regno = FIRST_IWMMXT_REGNUM; regno <= LAST_IWMMXT_REGNUM; regno++) + if (regs_ever_live[regno] && ! call_used_regs [regno]) +@@ -9775,7 +9886,19 @@ + /* This variable is for the Virtual Frame Pointer, not VFP regs. */ + int vfp_offset = offsets->frame; + +- if (arm_fpu_arch == FPUTYPE_FPA_EMU2) ++ if (arm_fpu_arch == FPUTYPE_MAVERICK) ++ { ++ for (reg = LAST_CIRRUS_FP_REGNUM; reg >= FIRST_CIRRUS_FP_REGNUM; reg--) ++ if (regs_ever_live[reg] && !call_used_regs[reg]) ++ { ++ floats_offset += 8; /* more problems - futaris? */ ++ /* if (TARGET_CIRRUS_D0 || TARGET_CIRRUS_D1) */ ++ asm_fprintf (f, "\tnop\n"); ++ asm_fprintf (f, "\tcfldrd\tmvd%d, [%r, #-%d]\n", ++ reg - FIRST_CIRRUS_FP_REGNUM, FP_REGNUM, floats_offset - vfp_offset); ++ } ++ } ++ else if (arm_fpu_arch == FPUTYPE_FPA_EMU2) + { + for (reg = LAST_FPA_REGNUM; reg >= FIRST_FPA_REGNUM; reg--) + if (regs_ever_live[reg] && !call_used_regs[reg]) +@@ -9924,7 +10047,18 @@ + output_add_immediate (operands); + } + +- if (arm_fpu_arch == FPUTYPE_FPA_EMU2) ++ if (arm_fpu_arch == FPUTYPE_MAVERICK) ++ { /* order changed - futaris */ ++ for (reg = FIRST_CIRRUS_FP_REGNUM; reg <= LAST_CIRRUS_FP_REGNUM; reg++) ++ if (regs_ever_live[reg] && !call_used_regs[reg]) ++ { ++ /* if (TARGET_CIRRUS_D0 || TARGET_CIRRUS_D1) */ ++ asm_fprintf (f, "\tnop\n"); ++ asm_fprintf (f, "\tcfldrd\tmvd%u, [%r], #8\n", ++ reg - FIRST_CIRRUS_FP_REGNUM, SP_REGNUM); ++ } /* reg problems - futaris */ ++ } ++ else if (arm_fpu_arch == FPUTYPE_FPA_EMU2) + { + for (reg = FIRST_FPA_REGNUM; reg <= LAST_FPA_REGNUM; reg++) + if (regs_ever_live[reg] && !call_used_regs[reg]) +@@ -10429,9 +10563,19 @@ + if (! IS_VOLATILE (func_type)) + { ++ /* Space for saved MAVERICK registers. */ ++ if (arm_fpu_arch == FPUTYPE_MAVERICK) ++ { ++ for (regno = FIRST_CIRRUS_FP_REGNUM; regno <= LAST_CIRRUS_FP_REGNUM; regno++) ++ if (regs_ever_live[regno] && !call_used_regs[regno]) ++ saved += 8; // 8 in 3.4.3 patch - futaris; ++ } ++ else + /* Space for saved FPA registers. */ ++ { + for (regno = FIRST_FPA_REGNUM; regno <= LAST_FPA_REGNUM; regno++) + if (regs_ever_live[regno] && ! call_used_regs[regno]) + saved += 12; ++ } + + /* Space for saved VFP registers. */ + if (TARGET_HARD_FLOAT && TARGET_VFP) +@@ -10739,7 +10882,19 @@ + + /* Save any floating point call-saved registers used by this + function. */ +- if (arm_fpu_arch == FPUTYPE_FPA_EMU2) ++ if (arm_fpu_arch == FPUTYPE_MAVERICK) ++ { ++ for (reg = LAST_CIRRUS_FP_REGNUM; reg >= FIRST_CIRRUS_FP_REGNUM; reg--) ++ if (regs_ever_live[reg] && !call_used_regs[reg]) ++ { ++ insn = gen_rtx_PRE_DEC (DFmode, stack_pointer_rtx); /* think these causes problems */ ++ insn = gen_rtx_MEM (DFmode, insn); ++ insn = emit_insn (gen_rtx_SET (VOIDmode, insn, ++ gen_rtx_REG (DFmode, reg))); ++ RTX_FRAME_RELATED_P (insn) = 1; saved_regs += 8; /* added by futaris */ ++ } ++ } ++ else if (arm_fpu_arch == FPUTYPE_FPA_EMU2) + { + for (reg = LAST_FPA_REGNUM; reg >= FIRST_FPA_REGNUM; reg--) + if (regs_ever_live[reg] && !call_used_regs[reg]) +@@ -15179,6 +15331,9 @@ + if (IS_FPA_REGNUM (regno)) + return (TARGET_AAPCS_BASED ? 96 : 16) + regno - FIRST_FPA_REGNUM; + ++ if (IS_CIRRUS_REGNUM (regno)) ++ return 28 + regno - FIRST_CIRRUS_FP_REGNUM; ++ + if (IS_VFP_REGNUM (regno)) + return 64 + regno - FIRST_VFP_REGNUM; + +--- gcc-4.1.2/gcc/config/arm/arm.md-original 2007-06-28 15:42:36.000000000 +1000 ++++ gcc-4.1.2/gcc/config/arm/arm.md 2007-06-28 15:42:48.000000000 +1000 +@@ -9800,7 +9800,7 @@ + return arm_output_epilogue (next_nonnote_insn (insn)); + " + ;; Length is absolute worst case +- [(set_attr "length" "44") ++ [(set_attr "length" "108") + (set_attr "type" "block") + ;; We don't clobber the conditions, but the potential length of this + ;; operation is sufficient to make conditionalizing the sequence +@@ -9818,7 +9818,7 @@ + return thumb_unexpanded_epilogue (); + " + ; Length is absolute worst case +- [(set_attr "length" "44") ++ [(set_attr "length" "108") + (set_attr "type" "block") + ;; We don't clobber the conditions, but the potential length of this + ;; operation is sufficient to make conditionalizing the sequence |