[PATCH, rs6000] improve vec_ctf invalid parameter handling. Hi, Per PR91903, GCC ICEs when we attempt to pass a variable (or out of range value) into the vec_ctf() builtin. Per investigation, the parameter checking exists for this builtin with the int types, but was missing for the long long types.
This patch adds the missing CODE_FOR_* entries to the rs6000_expand_binup_builtin to cover that scenario. This patch also updates some existing tests to remove calls to vec_ctf() and vec_cts() that contain negative values. Regtested clean on power7, power8, power9 Linux targets. OK for trunk? THanks, -Will PR target/91903 2020-10-26 Will Schmidt <will_schm...@vnet.ibm.com> gcc/ChangeLog: * config/rs6000/rs6000-call.c (rs6000_expand_binup_builtin): Add clauses for CODE_FOR_vsx_xvcvuxddp_scale and CODE_FOR_vsx_xvcvsxddp_scale to the parameter checking code. gcc/testsuite/ChangeLog: * testsuite/gcc.target/powerpc/pr91903.c: New test. * testsuite/gcc.target/powerpc/builtins-1.fold.h: Update. * testsuite/gcc.target/powerpc/builtins-2.c: Update. diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c index b044778a7ae4..eb7e007e68d3 100644 --- a/gcc/config/rs6000/rs6000-call.c +++ b/gcc/config/rs6000/rs6000-call.c @@ -9447,11 +9447,13 @@ rs6000_expand_binop_builtin (enum insn_code icode, tree exp, rtx target) } } else if (icode == CODE_FOR_altivec_vcfux || icode == CODE_FOR_altivec_vcfsx || icode == CODE_FOR_altivec_vctsxs - || icode == CODE_FOR_altivec_vctuxs) + || icode == CODE_FOR_altivec_vctuxs + || icode == CODE_FOR_vsx_xvcvuxddp_scale + || icode == CODE_FOR_vsx_xvcvsxddp_scale) { /* Only allow 5-bit unsigned literals. */ STRIP_NOPS (arg1); if (TREE_CODE (arg1) != INTEGER_CST || TREE_INT_CST_LOW (arg1) & ~0x1f) diff --git a/gcc/testsuite/gcc.target/powerpc/builtins-1.fold.h b/gcc/testsuite/gcc.target/powerpc/builtins-1.fold.h index 8bc5f5e43366..42d552295e3e 100644 --- a/gcc/testsuite/gcc.target/powerpc/builtins-1.fold.h +++ b/gcc/testsuite/gcc.target/powerpc/builtins-1.fold.h @@ -212,14 +212,14 @@ int main () extern vector unsigned long long u9; u9 = vec_mergeo (u3, u4); extern vector long long l8; l8 = vec_mul (l3, l4); extern vector unsigned long long u6; u6 = vec_mul (u3, u4); - extern vector double dh; dh = vec_ctf (la, -2); + extern vector double dh; dh = vec_ctf (la, 2); extern vector double di; di = vec_ctf (ua, 2); extern vector int sz; sz = vec_cts (fa, 0x1F); - extern vector long long l9; l9 = vec_cts (dh, -2); + extern vector long long l9; l9 = vec_cts (dh, 2); extern vector unsigned long long u7; u7 = vec_ctu (di, 2); extern vector unsigned int usz; usz = vec_ctu (fa, 0x1F); extern vector float f1; f1 = vec_mergee (fa, fb); extern vector float f2; f2 = vec_mergeo (fa, fb); diff --git a/gcc/testsuite/gcc.target/powerpc/builtins-2.c b/gcc/testsuite/gcc.target/powerpc/builtins-2.c index 2aa23a377992..30acae47faff 100644 --- a/gcc/testsuite/gcc.target/powerpc/builtins-2.c +++ b/gcc/testsuite/gcc.target/powerpc/builtins-2.c @@ -40,16 +40,16 @@ int main () if (se[0] != 27L || se[1] != 27L || sf[0] != -14L || sf[1] != -14L || ue[0] != 27L || ue[1] != 27L || uf[0] != 14L || uf[1] != 14L) abort (); - vector double da = vec_ctf (sa, -2); + vector double da = vec_ctf (sa, 2); vector double db = vec_ctf (ua, 2); - vector long long sg = vec_cts (da, -2); + vector long long sg = vec_cts (da, 2); vector unsigned long long ug = vec_ctu (db, 2); - if (da[0] != 108.0 || da[1] != -56.0 || db[0] != 6.75 || db[1] != 3.5 + if (da[0] != 6.75 || da[1] != -3.5 || db[0] != 6.75 || db[1] != 3.5 || sg[0] != 27L || sg[1] != -14L || ug[0] != 27L || ug[1] != 14L) abort (); vector float fa = vec_ctf (inta, 5); if (fa[0] != 0.843750 || fa[1] != -0.031250 || fa[2] != 0.125000 || fa[3] != 0.281250) diff --git a/gcc/testsuite/gcc.target/powerpc/pr91903.c b/gcc/testsuite/gcc.target/powerpc/pr91903.c new file mode 100644 index 000000000000..f0792117a88f --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/pr91903.c @@ -0,0 +1,74 @@ +/* { dg-do compile */ +/* { dg-require-effective-target p8vector_hw } */ +/* { dg-skip-if "" { powerpc*-*-darwin* } } */ +/* { dg-options "-mdejagnu-cpu=power8" } */ + +#include <stdlib.h> +#include <stdio.h> +#include <altivec.h> + +vector double retd; +vector float retf; +vector signed int retsi; + +void test_int(vector signed int a, const int b) +{ + retf = vec_ctf(a,b); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,-1); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,-31); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,-32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,1); + retf = vec_ctf(a,31); + retf = vec_ctf(a,32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,42); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ +} + +void test_uint(vector unsigned int a, const int b) +{ + retf = vec_ctf(a,b); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,-1); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,-31); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,-32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,1); + retf = vec_ctf(a,31); + retf = vec_ctf(a,32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retf = vec_ctf(a,42); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ +} + +void test_longlong(vector signed long long a, const int b,int x) +{ + retd = vec_ctf(a,b); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,-1); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,-31); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,-32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,1); + retd = vec_ctf(a,31); + retd = vec_ctf(a,32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,42); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ +} + +void test_ulonglong(vector unsigned long long a, const int b,int x) +{ + retd = vec_ctf(a,b); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,-1); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,-31); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,-32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,1); + retd = vec_ctf(a,31); + retd = vec_ctf(a,32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retd = vec_ctf(a,42); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ +} + + +void test_cts_1(vector float a, const int b) +{ + retsi = vec_cts(a,b); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retsi = vec_cts(a,-1); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retsi = vec_cts(a,-31); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retsi = vec_cts(a,-32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retsi = vec_cts(a,1); + retsi = vec_cts(a,31); + retsi = vec_cts(a,32); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ + retsi = vec_cts(a,42); /* { dg-error "argument 2 must be a 5-bit unsigned literal" } */ +} +