| Compiler | Implementations
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| gcc -O2 -fomit-frame-pointer | ref |
| gcc -O3 -fomit-frame-pointer | ref |
| gcc -O -fomit-frame-pointer | ref |
| gcc -Os -fomit-frame-pointer | ref |
| gcc -fno-schedule-insns -O2 -fomit-frame-pointer | ref |
| gcc -fno-schedule-insns -O3 -fomit-frame-pointer | ref |
| gcc -fno-schedule-insns -O -fomit-frame-pointer | ref |
| gcc -fno-schedule-insns -Os -fomit-frame-pointer | ref |
| gcc -funroll-loops -O2 -fomit-frame-pointer | ref |
| gcc -funroll-loops -O3 -fomit-frame-pointer | ref |
| gcc -funroll-loops -O -fomit-frame-pointer | ref |
| gcc -funroll-loops -Os -fomit-frame-pointer | ref |
| gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer | ref |
| gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer | ref |
| gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer | ref |
| gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer | ref
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