llvm-project/clang/test/CodeGen/attr-target.c
Eric Christopher 249e3762e5 Handle fpmath= in the target attribute.
Right now we're ignoring the fpmath attribute since there's no
backend support for a feature like this and to do so would require
checking the validity of the strings and doing general subtarget
feature parsing of valid and invalid features with the target
attribute feature.

llvm-svn: 239582
2015-06-12 01:36:00 +00:00

26 lines
1.1 KiB
C

// RUN: %clang_cc1 -triple x86_64-linux-gnu -target-cpu x86-64 -emit-llvm %s -o - | FileCheck %s
int baz(int a) { return 4; }
int __attribute__((target("avx,sse4.2,arch=ivybridge"))) foo(int a) { return 4; }
int __attribute__((target("tune=sandybridge"))) walrus(int a) { return 4; }
int __attribute__((target("fpmath=387"))) koala(int a) { return 4; }
int __attribute__((target("mno-sse2"))) echidna(int a) { return 4; }
int bar(int a) { return baz(a) + foo(a); }
// Check that we emit the additional subtarget and cpu features for foo and not for baz or bar.
// CHECK: baz{{.*}} #0
// CHECK: foo{{.*}} #1
// We ignore the tune attribute so walrus should be identical to baz and bar.
// CHECK: walrus{{.*}} #0
// We're currently ignoring the fpmath attribute so koala should be identical to baz and bar.
// CHECK: koala{{.*}} #0
// CHECK: echidna{{.*}} #2
// CHECK: bar{{.*}} #0
// CHECK: #0 = {{.*}}"target-cpu"="x86-64" "target-features"="+sse,+sse2"
// CHECK: #1 = {{.*}}"target-cpu"="ivybridge" "target-features"="+sse,+sse2,+avx,+sse4.2"
// CHECK: #2 = {{.*}}"target-cpu"="x86-64" "target-features"="+sse,+sse2,-sse2"