https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49203
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
Known to work| |7.0
Target Milestone|--- |7.0
Known to fail| |4.8.5
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed in at least in GCC 7.0:
.L2:
leaq 16(%r8), %rsi
movq %r8, %rdx
xorl %eax, %eax
.p2align 4,,10
.p2align 3
.L3:
movzbl (%rdx), %ecx
sall $2, %eax
addq $1, %rdx
andl $3, %ecx
orl %ecx, %eax
cmpq %rsi, %rdx
jne .L3
movl %eax, %edx
addq $4, %r8
movb %ah, 2(%rdi)
shrl $24, %edx
movb %al, 3(%rdi)
addq $4, %rdi
movb %dl, -4(%rdi)
movl %eax, %edx
shrl $16, %edx
movb %dl, -3(%rdi)
cmpq %r8, %r9
jne .L2
<bb 3> [94.12%]:
# tmp_37 = PHI <tmp_23(3), 0(5)>
# ivtmp.17_17 = PHI <ivtmp.17_15(3), ivtmp.28_79(5)>
_1 = tmp_37 << 2;
_87 = (void *) ivtmp.17_17;
_3 = MEM[base: _87, offset: 0B];
_20 = _3 & 3;
_4 = (unsigned int) _20;
tmp_23 = _1 | _4;
ivtmp.17_15 = ivtmp.17_17 + 1;
if (ivtmp.17_15 != _83)
goto <bb 3>; [93.75%]
else
goto <bb 4>; [6.25%]
<bb 4> [5.88%]:
_5 = tmp_23 >> 24;
_6 = (unsigned char) _5;
_76 = (void *) ivtmp.27_82;
MEM[base: _76, offset: 0B] = _6;
_7 = tmp_23 >> 16;
_9 = (unsigned char) _7;
MEM[base: _76, offset: 1B] = _9;
_10 = tmp_23 >> 8;
_12 = (unsigned char) _10;
MEM[base: _76, offset: 2B] = _12;
_14 = (unsigned char) tmp_23;
MEM[base: _76, offset: 3B] = _14;
ivtmp.27_81 = ivtmp.27_82 + 4;
ivtmp.28_78 = ivtmp.28_79 + 4;
if (_71 != ivtmp.28_78)
goto <bb 5>; [87.51%]
else
goto <bb 6>; [12.49%]
<bb 5> [5.88%]:
# ivtmp.27_82 = PHI <ivtmp.27_81(4), ivtmp.27_80(2)>
# ivtmp.28_79 = PHI <ivtmp.28_78(4), ivtmp.28_77(2)>
_83 = ivtmp.28_79 + 16;
goto <bb 3>; [100.00%]
