/* PR86731. Verify that the rs6000 gimple-folding code handles the left shift operation properly. This is a testcase variation that explicitly specifies -fwrapv, which is a condition for the gimple folding of the vec_sl() intrinsic. */ /* { dg-do compile } */ /* { dg-options "-maltivec -O3 -fwrapv " } */ /* { dg-require-effective-target powerpc_altivec } */ /* { dg-require-effective-target lp64 } */ #include /* original test as reported. */ vector unsigned int splat(void) { vector unsigned int mzero = vec_splat_u32(-1); return (vector unsigned int) vec_sl(mzero, mzero); } /* more testcase variations. */ vector unsigned char splatu1(void) { vector unsigned char mzero = vec_splat_u8(-1); return (vector unsigned char) vec_sl(mzero, mzero); } vector unsigned short splatu2(void) { vector unsigned short mzero = vec_splat_u16(-1); return (vector unsigned short) vec_sl(mzero, mzero); } vector unsigned int splatu3(void) { vector unsigned int mzero = vec_splat_u32(-1); return (vector unsigned int) vec_sl(mzero, mzero); } vector signed char splats1(void) { vector unsigned char mzero = vec_splat_u8(-1); return (vector signed char) vec_sl(mzero, mzero); } vector signed short splats2(void) { vector unsigned short mzero = vec_splat_u16(-1); return (vector signed short) vec_sl(mzero, mzero); } vector signed int splats3(void) { vector unsigned int mzero = vec_splat_u32(-1); return (vector signed int) vec_sl(mzero, mzero); } /* Codegen will consist of splat and shift instructions. If folding is enabled, the vec_sl tests using vector long long type will generate a lvx instead of a vspltisw+vsld pair. */ /* { dg-final { scan-assembler-times {\mvspltis[bhw]\M|\mxxspltib\M} 7 } } */ /* { dg-final { scan-assembler-times {\mvsl[bhwd]\M} 7 } } */ /* { dg-final { scan-assembler-times {\mlvx\M|\mlxvd2x\M} 0 } } */