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111
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1 /* { dg-do compile } */
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2 /* -mlongcall will cause us to place &foo in the CTR register. */
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3 /* { dg-skip-if "" { powerpc*-*-* } { "-mlongcall" } { "" } } */
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4 /* { dg-options "-O1 -ftree-loop-ivcanon -funroll-loops -fdump-tree-ivcanon-details -fdump-tree-cunroll-details -fdump-tree-optimized" } */
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5 /* { dg-options "-O1 -ftree-loop-ivcanon -funroll-loops -fdump-tree-ivcanon-details -fdump-tree-cunroll-details -fdump-tree-optimized -mshort-calls" {target epiphany-*-*} } */
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6
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7
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8 /* On 31-bit S/390 the function address will be stored (once) in the literal pool,
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9 so scan-assembler-times "foo" will return 1 even if the loop is fully unrolled.
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10 -msmall-exec avoids this by enabling a call instruction with immediate operand. */
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11 /* { dg-options "-O1 -ftree-loop-ivcanon -funroll-loops -fdump-tree-ivcanon-details -fdump-tree-cunroll-details -fdump-tree-optimized -msmall-exec" { target s390-*-* } } */
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12
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13 /* On Darwin, we call extern functions via a stub in PIC mode which is default and
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14 the stub is named after the function. To avoid this we use -static to go out
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15 of PIC mode. */
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16 /* { dg-options "-O1 -ftree-loop-ivcanon -funroll-loops -fdump-tree-ivcanon-details -fdump-tree-cunroll-details -fdump-tree-optimized -static" { target *-*-darwin* } } */
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17
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18 /* On MIPS, disable generating hints (R_MIPS_JALR) for PIC calls. In addition
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19 to the load from the GOT this also contains the name of the function so for
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20 each call the function name would appear twice. */
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21 /* { dg-options "-O1 -ftree-loop-ivcanon -funroll-loops -fdump-tree-ivcanon-details -fdump-tree-cunroll-details -fdump-tree-optimized -mno-relax-pic-calls" { target mips*-*-* } } */
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22 __attribute__ ((pure))
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23 int foo (int x);
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24 int xxx(void)
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25 {
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26 int x = 45;
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27 int sum = 0;
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28
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29 while (x >>= 1)
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30 sum += foo (x) * 2;
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31 return sum;
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32 }
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33
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34 /* We should be able to find out that the loop iterates four times and unroll it completely. */
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35
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36 /* { dg-final { scan-tree-dump-times "Added canonical iv to loop 1, 4 iterations" 1 "ivcanon"} } */
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131
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37 /* { dg-final { scan-tree-dump-times "loop with 4 iterations completely unrolled" 1 "cunroll"} } */
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111
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38 /* { dg-final { scan-tree-dump-times "foo" 5 "optimized"} } */
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39
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40 /* Because hppa, ia64 and Windows targets include an external declaration
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41 for foo as well as the calls we need to look for something more specific
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42 than just foo in order to count only the calls and not the declaration. */
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43 /* The SH targets always use separate instructions to load the address
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44 and to do the actual call - bsr is only generated by link time
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45 relaxation. */
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46 /* CRIS keeps the address in a register. */
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47 /* m68k sometimes puts the address in a register, depending on CPU and PIC. */
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48
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49 /* { dg-final { scan-assembler-times "foo" 5 { xfail hppa*-*-* ia64*-*-* sh*-*-* cris-*-* crisv32-*-* fido-*-* m68k-*-* i?86-*-mingw* i?86-*-cygwin* x86_64-*-mingw* visium-*-* nvptx*-*-* } } } */
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50 /* { dg-final { scan-assembler-times "foo,%r" 5 { target hppa*-*-* } } } */
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51 /* { dg-final { scan-assembler-times "= foo" 5 { target ia64*-*-* } } } */
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52 /* { dg-final { scan-assembler-times "call\[ \t\]*_foo" 5 { target i?86-*-mingw* i?86-*-cygwin* } } } */
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53 /* { dg-final { scan-assembler-times "call\[ \t\]*foo" 5 { target x86_64-*-mingw* } } } */
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54 /* { dg-final { scan-assembler-times "jsr|bsrf|blink\ttr?,r18" 5 { target sh*-*-* } } } */
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55 /* { dg-final { scan-assembler-times "Jsr \\\$r" 5 { target cris-*-* } } } */
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56 /* { dg-final { scan-assembler-times "\[jb\]sr" 5 { target fido-*-* m68k-*-* } } } */
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57 /* { dg-final { scan-assembler-times "bra *tr,r\[1-9\]*,r21" 5 { target visium-*-* } } } */
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58 /* { dg-final { scan-assembler-times "(?n)\[ \t\]call\[ \t\].*\[ \t\]foo," 5 { target nvptx*-*-* } } } */
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