From 0133b7d92c246b7e6fc48a72dc6069700f703281 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 1 Apr 1999 09:06:09 -0800 Subject: Move over patch from Bernd Schmidt from GC branch: * emit-rtl.c (gen_rtx_CONST_DOUBLE): New function. (gen_rtx): Call it. Tidy cases. * rtl.h (gen_rtx_CONST_DOUBLE): Prototype it. * gengenrtl.c: Add commentary. (special_rtx): Also match CONST_DOUBLE. (gencode): Emit call to memset instead of bzero. From-SVN: r26110 --- gcc/emit-rtl.c | 50 ++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 8 deletions(-) (limited to 'gcc/emit-rtl.c') diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index eec6b06..4df1a6a 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -264,6 +264,22 @@ gen_rtx_CONST_INT (mode, arg) return gen_rtx_raw_CONST_INT (mode, arg); } +/* CONST_DOUBLEs needs special handling because its length is known + only at run-time. */ +rtx +gen_rtx_CONST_DOUBLE (mode, arg0, arg1, arg2) + enum machine_mode mode; + rtx arg0; + HOST_WIDE_INT arg1, arg2; +{ + rtx r = rtx_alloc (CONST_DOUBLE); + PUT_MODE (r, mode); + XEXP (r, 0) = arg0; + XINT (r, 2) = arg1; + XINT (r, 3) = arg2; + return r; +} + rtx gen_rtx_REG (mode, regno) enum machine_mode mode; @@ -366,14 +382,30 @@ gen_rtx VPROTO((enum rtx_code code, enum machine_mode mode, ...)) mode = va_arg (p, enum machine_mode); #endif - if (code == CONST_INT) - rt_val = gen_rtx_CONST_INT (mode, va_arg (p, HOST_WIDE_INT)); - else if (code == REG) - rt_val = gen_rtx_REG (mode, va_arg (p, int)); - else if (code == MEM) - rt_val = gen_rtx_MEM (mode, va_arg (p, rtx)); - else + switch (code) { + case CONST_INT: + rt_val = gen_rtx_CONST_INT (mode, va_arg (p, HOST_WIDE_INT)); + break; + + case CONST_DOUBLE: + { + rtx arg0 = va_arg (p, rtx); + HOST_WIDE_INT arg1 = va_arg (p, HOST_WIDE_INT); + HOST_WIDE_INT arg2 = va_arg (p, HOST_WIDE_INT); + rt_val = gen_rtx_CONST_DOUBLE (mode, arg0, arg1, arg2); + } + break; + + case REG: + rt_val = gen_rtx_REG (mode, va_arg (p, int)); + break; + + case MEM: + rt_val = gen_rtx_MEM (mode, va_arg (p, rtx)); + break; + + default: rt_val = rtx_alloc (code); /* Allocate the storage space. */ rt_val->mode = mode; /* Store the machine mode... */ @@ -418,9 +450,11 @@ gen_rtx VPROTO((enum rtx_code code, enum machine_mode mode, ...)) abort (); } } + break; } + va_end (p); - return rt_val; /* Return the new RTX... */ + return rt_val; } /* gen_rtvec (n, [rt1, ..., rtn]) -- cgit v1.1