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[Bug middle-end/39976] [4.5 Regression] Big sixtrack degradation on powerpc 32/64 after revision r146817
- From: "luisgpm at linux dot vnet dot ibm dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 May 2009 02:19:15 -0000
- Subject: [Bug middle-end/39976] [4.5 Regression] Big sixtrack degradation on powerpc 32/64 after revision r146817
- References: <bug-39976-16550@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #18 from luisgpm at linux dot vnet dot ibm dot com 2009-05-15 02:19 -------
64-bit with -mcpu=power6
.L93:
fmul 20,11,13
fmul 19,11,0
addis 12,11,0xffe5
lfd 3,0(11)
addi 5,11,8
lfd 2,9472(12)
addis 14,5,0xffe5
fmadd 1,12,0,20
fmsub 12,12,13,19
lfd 20,9472(14)
lfd 19,8(11)
addi 11,5,8
fmul 11,1,13
fmul 21,1,2
fmul 22,1,3
fmul 8,1,0
fmadd 11,12,0,11
fmadd 5,12,3,21
fmsub 4,12,2,22
fmsub 12,12,13,8
fmul 1,11,19
fmul 22,11,20
fadd 9,9,5
fadd 10,10,4
fmsub 21,12,20,1
fmadd 2,12,19,22
fadd 10,10,21
fadd 9,9,2
bdnz .L93
.L265:
stfd 12,736(1) ---
mr 11,3 |
ld 5,736(1) ------
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39976