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[PPC] Enhance altivec conversion function macros implementation. 

Add checking for the second parameter of altivec conversion builtin to make sure
it is compile-time constant int.

This patch fixes PR33212: PPC vec_cst useless at -O0
Differential Revision: https://reviews.llvm.org/D34092

llvm-svn: 305401
This commit is contained in:
Tony Jiang 2017-06-14 17:23:43 +00:00
parent f93b7b1c1f
commit 9d24522f22
2 changed files with 37 additions and 4 deletions
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8
clang/include/clang/Basic/BuiltinsPPC.def
View File

@ -51,10 +51,10 @@ BUILTIN(__builtin_altivec_vavguw, "V4UiV4UiV4Ui", "")
BUILTIN(__builtin_altivec_vrfip, "V4fV4f", "")
BUILTIN(__builtin_altivec_vcfsx, "V4fV4ii", "")
BUILTIN(__builtin_altivec_vcfux, "V4fV4ii", "")
BUILTIN(__builtin_altivec_vctsxs, "V4SiV4fi", "")
BUILTIN(__builtin_altivec_vctuxs, "V4UiV4fi", "")
BUILTIN(__builtin_altivec_vcfsx, "V4fV4iIi", "")
BUILTIN(__builtin_altivec_vcfux, "V4fV4iIi", "")
BUILTIN(__builtin_altivec_vctsxs, "V4SiV4fIi", "")
BUILTIN(__builtin_altivec_vctuxs, "V4UiV4fIi", "")
BUILTIN(__builtin_altivec_dss, "vUi", "")
BUILTIN(__builtin_altivec_dssall, "v", "")

33
clang/test/CodeGen/builtins-ppc-error.c
View File

@ -11,6 +11,8 @@
#include <altivec.h>
extern vector signed int vsi;
extern vector signed int vui;
extern vector float vf;
extern vector unsigned char vuc;
void testInsertWord(void) {
@ -34,3 +36,34 @@ void testXXSLDWI(int index) {
vec_xxsldwi(1, 2, 3); //expected-error {{first two arguments to '__builtin_vsx_xxsldwi' must be vectors}}
vec_xxsldwi(vsi, vuc, 2); //expected-error {{first two arguments to '__builtin_vsx_xxsldwi' must have the same type}}
}
void testCTF(int index) {
vec_ctf(vsi, index); //expected-error {{argument to '__builtin_altivec_vcfsx' must be a constant integer}}
vec_ctf(vui, index); //expected-error {{argument to '__builtin_altivec_vcfsx' must be a constant integer}}
}
void testVCFSX(int index) {
vec_vcfsx(vsi, index); //expected-error {{argument to '__builtin_altivec_vcfsx' must be a constant integer}}
}
void testVCFUX(int index) {
vec_vcfux(vui, index); //expected-error {{argument to '__builtin_altivec_vcfux' must be a constant integer}}
}
void testCTS(int index) {
vec_cts(vf, index); //expected-error {{argument to '__builtin_altivec_vctsxs' must be a constant integer}}
}
void testVCTSXS(int index) {
vec_vctsxs(vf, index); //expected-error {{argument to '__builtin_altivec_vctsxs' must be a constant integer}}
}
void testCTU(int index) {
vec_ctu(vf, index); //expected-error {{argument to '__builtin_altivec_vctuxs' must be a constant integer}}
}
void testVCTUXS(int index) {
vec_vctuxs(vf, index); //expected-error {{argument to '__builtin_altivec_vctuxs' must be a constant integer}}
}