Viewing file:  shift-dot.c (1.8 KB) -rw-r--r--
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/* Check that record-form instructions are used. */
/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-final { scan-assembler-times {\mrotl[wd]\.} 2 } } */
/* { dg-final { scan-assembler-times {\msl[wd]\.} 2 } } */
/* { dg-final { scan-assembler-times {\msr[wd]\.} 2 } } */
/* { dg-final { scan-assembler-times {\msra[wd]\.} 2 } } */
/* { dg-final { scan-assembler-times {\mrotl[wd]i\.} 2 } } */
/* { dg-final { scan-assembler-times {\msl[wd]i\.} 2 } } */
/* { dg-final { scan-assembler-times {\msr[wd]i\.} 2 } } */
/* Combine converts the arith shift right compares to a (more expensive)
direct compare. Luckily not the other shifts. XFAIL for now. */
/* { dg-final { scan-assembler-times {\msra[wd]i\.} 2 { xfail *-*-* } } } */
/* There should not be any extends of the shift amount (or anything else). */
/* { dg-final { scan-assembler-not {\mextsw\M} } } */
/* { dg-final { scan-assembler-not {\mrldicl\M} } } */
/* { dg-final { scan-assembler-not {\mclrldi\M} } } */
/* { dg-final { scan-assembler-not {\mrlwinm\M} } } */
typedef unsigned long u;
typedef long s;
#define M(n) (8 * sizeof(long) - (n))
#define T1 if ((s)x > 0) g();
#define T2 if ((s)x > 0) g(); return x;
void g(void);
void rot1(u x, u n) { x = (x << M(n)) | (x >> n); T1 }
u rot2(u x, u n) { x = (x << M(n)) | (x >> n); T2 }
void shl1(u x, u n) { x <<= n; T1 }
u shl2(u x, u n) { x <<= n; T2 }
void shr1(u x, u n) { x >>= n; T1 }
u shr2(u x, u n) { x >>= n; T2 }
void asr1(s x, u n) { x >>= n; T1 }
s asr2(s x, u n) { x >>= n; T2 }
void rot1i(u x) { x = (x << M(23)) | (x >> 23); T1 }
u rot2i(u x) { x = (x << M(23)) | (x >> 23); T2 }
void shl1i(u x) { x <<= 23; T1 }
u shl2i(u x) { x <<= 23; T2 }
void shr1i(u x) { x >>= 23; T1 }
u shr2i(u x) { x >>= 23; T2 }
void asr1i(s x) { x >>= 23; T1 }
s asr2i(s x) { x >>= 23; T2 }
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