?? arm-g2.c
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/* Verify that hardware multiply is preferred on XScale. *//* { dg-do compile } *//* { dg-options "-mcpu=xscale -O2" } *//* { dg-require-effective-target arm32 } *//* Brett Gaines' test case. */unsigned BCPL(unsigned) __attribute__ ((naked));unsigned BCPL(unsigned seed){ /* Best code would be: ldr r1, =2147001325 ldr r2, =715136305 mla r0, r1, r0, r2 mov pc, lr */ return seed * 2147001325U + 715136305U;}/* { dg-final { scan-assembler "mla\[ ].*" } } */?? 快捷鍵說明
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