From 71207246b02b33c1ceb169db54fddaa5c5c31824 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Tue, 30 Nov 2021 09:52:26 +0000 Subject: [PATCH] Mark IFN_COMPLEX_MUL as commutative gcc/ * internal-fn.c (commutative_binary_fn_p): Handle IFN_COMPLEX_MUL. gcc/testsuite/ * gcc.target/aarch64/sve/complex_mul_1.c: New test. --- gcc/internal-fn.c | 1 + .../gcc.target/aarch64/sve/complex_mul_1.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/complex_mul_1.c diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c index 514ce899211d..3d4055d29eed 100644 --- a/gcc/internal-fn.c +++ b/gcc/internal-fn.c @@ -3831,6 +3831,7 @@ commutative_binary_fn_p (internal_fn fn) case IFN_MULHRS: case IFN_FMIN: case IFN_FMAX: + case IFN_COMPLEX_MUL: return true; default: diff --git a/gcc/testsuite/gcc.target/aarch64/sve/complex_mul_1.c b/gcc/testsuite/gcc.target/aarch64/sve/complex_mul_1.c new file mode 100644 index 000000000000..d197e7d0d8e3 --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/sve/complex_mul_1.c @@ -0,0 +1,16 @@ +/* { dg-options "-O2 -fgimple -fdump-tree-optimized" } */ + +void __GIMPLE +foo (__SVFloat64_t x, __SVFloat64_t y, __SVFloat64_t *res1, + __SVFloat64_t *res2) +{ + __SVFloat64_t a1; + __SVFloat64_t a2; + + a1 = .COMPLEX_MUL (x, y); + a2 = .COMPLEX_MUL (y, x); + __MEM<__SVFloat64_t> (res1) = a1; + __MEM<__SVFloat64_t> (res2) = a2; +} + +/* { dg-final { scan-tree-dump-times {\.COMPLEX_MUL} 1 "optimized" } } */ -- 2.47.2