93 lines
3.0 KiB
Diff
93 lines
3.0 KiB
Diff
2017-03-07 Will Schmidt <will_schmidt@vnet.ibm.com>
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PR middle-end/79941
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* config/rs6000/rs6000.c (gimplify_init_constructor): Remove multiply
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even and multiply odd unsigned (vmule/vmulo) intrinsics from the
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multiply folding sequence.
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* gcc.target/powerpc/fold-vec-mult-even_odd_misc.c: New test.
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--- gcc/config/rs6000/rs6000.c 2017-03-03 20:31:01.000000000 +0100
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+++ gcc/config/rs6000/rs6000.c 2017-03-08 18:52:48.409967121 +0100
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@@ -16855,9 +16855,6 @@ rs6000_gimple_fold_builtin (gimple_stmt_
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/* Even element flavors of vec_mul (signed). */
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case ALTIVEC_BUILTIN_VMULESB:
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case ALTIVEC_BUILTIN_VMULESH:
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- /* Even element flavors of vec_mul (unsigned). */
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- case ALTIVEC_BUILTIN_VMULEUB:
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- case ALTIVEC_BUILTIN_VMULEUH:
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{
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arg0 = gimple_call_arg (stmt, 0);
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arg1 = gimple_call_arg (stmt, 1);
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@@ -16870,9 +16867,6 @@ rs6000_gimple_fold_builtin (gimple_stmt_
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/* Odd element flavors of vec_mul (signed). */
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case ALTIVEC_BUILTIN_VMULOSB:
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case ALTIVEC_BUILTIN_VMULOSH:
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- /* Odd element flavors of vec_mul (unsigned). */
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- case ALTIVEC_BUILTIN_VMULOUB:
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- case ALTIVEC_BUILTIN_VMULOUH:
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{
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arg0 = gimple_call_arg (stmt, 0);
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arg1 = gimple_call_arg (stmt, 1);
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--- gcc/testsuite/gcc.target/powerpc/fold-vec-mult-even_odd_misc.c
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+++ gcc/testsuite/gcc.target/powerpc/fold-vec-mult-even_odd_misc.c
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@@ -0,0 +1,58 @@
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+
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+/* { dg-do run } */
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+/* { dg-require-effective-target powerpc_vsx_ok } */
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+/* { dg-options "-maltivec -mvsx -O2 -save-temps" } */
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+
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+#include <altivec.h>
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+
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+__attribute__((noinline)) void
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+test_eub_char ()
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+{
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+ vector unsigned char v0 = {1, 0, 0, 0, 0, 0, 0, 0};
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+ vector unsigned char v1 = {0xff, 0, 0, 0, 0, 0, 0, 0};
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+ vector unsigned short res = vec_vmuleub (v0, v1);
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+ if (res[0] != (unsigned short)v0[0] * (unsigned short)v1[0])
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+ __builtin_abort ();
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+}
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+__attribute__((noinline)) void
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+test_oub_char ()
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+{
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+ vector unsigned char v0 = {0, 1, 0, 0, 0, 0, 0, 0};
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+ vector unsigned char v1 = {0, 0xff, 0, 0, 0, 0, 0, 0};
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+ vector unsigned short res = vec_vmuloub (v0, v1);
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+ if (res[0] != (unsigned short)v0[1] * (unsigned short)v1[1])
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+ __builtin_abort ();
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+}
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+
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+__attribute__((noinline)) void
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+test_euh_short ()
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+{
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+ vector unsigned short v0 = {1, 0, 0, 0};
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+ vector unsigned short v1 = {0xff, 0, 0, 0};
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+ vector unsigned int res = vec_vmuleuh (v0, v1);
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+ if (res[0] != (unsigned int)v0[0] * (unsigned int)v1[0])
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+ __builtin_abort ();
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+}
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+__attribute__((noinline)) void
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+test_ouh_short ()
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+{
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+ vector unsigned short v0 = {0, 1, 0, 0};
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+ vector unsigned short v1 = {0, 0xff, 0, 0};
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+ vector unsigned int res = vec_vmulouh (v0, v1);
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+ if (res[0] != (unsigned int)v0[1] * (unsigned int)v1[1])
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+ __builtin_abort ();
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+}
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+
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+int main ()
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+{
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+ test_eub_char();
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+ test_oub_char();
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+ test_euh_short();
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+ test_ouh_short();
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+}
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+
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+/* { dg-final { scan-assembler-times "vmuleub" 1 } } */
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+/* { dg-final { scan-assembler-times "vmuloub" 1 } } */
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+/* { dg-final { scan-assembler-times "vmuleuh" 1 } } */
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+/* { dg-final { scan-assembler-times "vmulouh" 1 } } */
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+
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