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arm64: Optimise some integer operations with a constant operand.

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This commit is contained in:
Edmund Grimley Evans
2015-03-07 17:03:51 +00:00
parent ac70e6b840
commit d854dede03
3 changed files with 243 additions and 2 deletions
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83
tests/tests2/73_arm64.c
View File

@ -2,6 +2,7 @@
// calling convention, but should give the same results on any architecture.
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
struct s1 { char x[1]; } s1 = { "0" };
@ -429,12 +430,94 @@ void movi(void)
pll(0xabcdef0123456789);
}
static uint32_t addip0(uint32_t x) { return x + 0; }
static uint64_t sublp0(uint64_t x) { return x - 0; }
static uint32_t addip123(uint32_t x) { return x + 123; }
static uint64_t addlm123(uint64_t x) { return x + -123; }
static uint64_t sublp4095(uint64_t x) { return x - 4095; }
static uint32_t subim503808(uint32_t x) { return x - -503808; }
static uint64_t addp12345(uint64_t x) { return x + 12345; }
static uint32_t subp12345(uint32_t x) { return x - 12345; }
static uint32_t mvni(uint32_t x) { return 0xffffffff - x; }
static uint64_t negl(uint64_t x) { return 0 - x; }
static uint32_t rsbi123(uint32_t x) { return 123 - x; }
static uint64_t rsbl123(uint64_t x) { return 123 - x; }
static uint32_t andi0(uint32_t x) { return x & 0; }
static uint64_t andlm1(uint64_t x) { return x & -1; }
static uint64_t orrl0(uint64_t x) { return x | 0; }
static uint32_t orrim1(uint32_t x) { return x | -1; }
static uint32_t eori0(uint32_t x) { return x ^ 0; }
static uint64_t eorlm1(uint64_t x) { return x ^ -1; }
static uint32_t and0xf0(uint32_t x) { return x & 0xf0; }
static uint64_t orr0xf0(uint64_t x) { return x | 0xf0; }
static uint64_t eor0xf0(uint64_t x) { return x ^ 0xf0; }
static uint32_t lsli0(uint32_t x) { return x << 0; }
static uint32_t lsri0(uint32_t x) { return x >> 0; }
static int64_t asrl0(int64_t x) { return x >> 0; }
static uint32_t lsli1(uint32_t x) { return x << 1; }
static uint32_t lsli31(uint32_t x) { return x << 31; }
static uint64_t lsll1(uint64_t x) { return x << 1; }
static uint64_t lsll63(uint64_t x) { return x << 63; }
static uint32_t lsri1(uint32_t x) { return x >> 1; }
static uint32_t lsri31(uint32_t x) { return x >> 31; }
static uint64_t lsrl1(uint64_t x) { return x >> 1; }
static uint64_t lsrl63(uint64_t x) { return x >> 63; }
static int32_t asri1(int32_t x) { return x >> 1; }
static int32_t asri31(int32_t x) { return x >> 31; }
static int64_t asrl1(int64_t x) { return x >> 1; }
static int64_t asrl63(int64_t x) { return x >> 63; }
void opi(void)
{
int x = 1000;
pll(addip0(x));
pll(sublp0(x));
pll(addip123(x));
pll(addlm123(x));
pll(sublp4095(x));
pll(subim503808(x));
pll(addp12345(x));
pll(subp12345(x));
pll(mvni(x));
pll(negl(x));
pll(rsbi123(x));
pll(rsbl123(x));
pll(andi0(x));
pll(andlm1(x));
pll(orrl0(x));
pll(orrim1(x));
pll(eori0(x));
pll(eorlm1(x));
pll(and0xf0(x));
pll(orr0xf0(x));
pll(eor0xf0(x));
pll(lsli0(x));
pll(lsri0(x));
pll(asrl0(x));
pll(lsli1(x));
pll(lsli31(x));
pll(lsll1(x));
pll(lsll63(x));
pll(lsri1(x));
pll(lsri31(x));
pll(lsrl1(x));
pll(lsrl63(x));
pll(asri1(x));
pll(asri31(x));
pll(asrl1(x));
pll(asrl63(x));
}
void pcs(void)
{
arg();
ret();
stdarg();
movi();
opi();
}
int main()

36
tests/tests2/73_arm64.expect
View File

@ -136,3 +136,39 @@ abcd1234ffffffff
ffffef0123456789
abcdef012345ffff
abcdef0123456789
3e8
3e8
463
36d
fffffffffffff3e9
7b3e8
3421
ffffd3af
fffffc17
fffffffffffffc18
fffffc93
fffffffffffffc93
0
3e8
3e8
ffffffff
3e8
fffffffffffffc17
e0
3f8
318
3e8
3e8
3e8
7d0
0
7d0
0
1f4
0
1f4
0
1f4
0
1f4
0