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authorsayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4>2003-05-12 02:51:40 +0000
committersayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4>2003-05-12 02:51:40 +0000
commit26398ccb63dde50f8039ed075b55280a2521f4d3 (patch)
tree152c83a01df523308adb9ade7e3ecf52d5db6386 /gcc/reg-stack.c
parent13388b58aa373a807977b6358e8b5ee4fb74f128 (diff)
downloadgcc-26398ccb63dde50f8039ed075b55280a2521f4d3.tar.gz
* config/i386/i386.md (logsf2, logdf2, logxf2, logdf2): New patterns
to implement log, logf and logl built-ins as inline x87 intrinsics. (UNSPEC_FYL2X): New unspec to represent x87's "fyl2x" instruction. (*fyl2x_sfxf3, *fyl2x_dfxf3, *fyl2x_xf3, *fyl2x_tfxf3): New insn patterns for x87's "fyl2x" instruction, used by log?f2 patterns. * reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_FYL2X like UNSPEC_FPATAN, i.e. replaces two stack operands with single result. * gcc.dg/i386-387-1.c: Update to also test log. * gcc.dg/i386-387-2.c: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@66709 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reg-stack.c')
-rw-r--r--gcc/reg-stack.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c
index 525d0669440..75a59e68727 100644
--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -1729,6 +1729,7 @@ subst_stack_regs_pat (insn, regstack, pat)
break;
case UNSPEC_FPATAN:
+ case UNSPEC_FYL2X:
/* These insns operate on the top two stack slots. */
src1 = get_true_reg (&XVECEXP (pat_src, 0, 0));