724f570ad2
This adds parsing and codegen support for tune in target attribute. I've implemented this so that arch in the target attribute implicitly disables tune from the command line. I'm not sure what gcc does here. But since -march implies -mtune. I assume 'arch' in the target attribute implies tune in the target attribute. Differential Revision: https://reviews.llvm.org/D86187
62 lines
3.3 KiB
C
62 lines
3.3 KiB
C
// RUN: %clang_cc1 -triple i686-linux-gnu -target-cpu i686 -tune-cpu i686 -emit-llvm %s -o - | FileCheck %s
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int baz(int a) { return 4; }
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int __attribute__((target("avx,sse4.2,arch=ivybridge"))) foo(int a) { return 4; }
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int __attribute__((target("fpmath=387"))) koala(int a) { return 4; }
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int __attribute__((target("no-sse2"))) echidna(int a) { return 4; }
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int __attribute__((target("sse4"))) panda(int a) { return 4; }
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int __attribute__((target("no-sse4"))) narwhal(int a) { return 4; }
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int bar(int a) { return baz(a) + foo(a); }
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int __attribute__((target("avx, sse4.2, arch= ivybridge"))) qux(int a) { return 4; }
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int __attribute__((target("no-aes, arch=ivybridge"))) qax(int a) { return 4; }
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int __attribute__((target("no-mmx"))) qq(int a) { return 40; }
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int __attribute__((target("arch=lakemont,mmx"))) lake(int a) { return 4; }
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int use_before_def(void);
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int useage(void){
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return use_before_def();
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}
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// Adding the attribute to a definition does update it in IR.
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int __attribute__((target("arch=lakemont,mmx"))) use_before_def(void) {
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return 5;
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}
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int __attribute__((target("tune=sandybridge"))) walrus(int a) { return 4; }
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// Check that we emit the additional subtarget and cpu features for foo and not for baz or bar.
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// CHECK: baz{{.*}} #0
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// CHECK: foo{{.*}} #1
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// We're currently ignoring the fpmath attribute so koala should be identical to baz and bar.
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// CHECK: koala{{.*}} #0
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// CHECK: echidna{{.*}} #2
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// CHECK: panda{{.*}} #3
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// CHECK: narwhal{{.*}} #4
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// CHECK: bar{{.*}} #0
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// CHECK: qux{{.*}} #1
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// CHECK: qax{{.*}} #5
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// CHECK: qq{{.*}} #6
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// CHECK: lake{{.*}} #7
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// CHECK: use_before_def{{.*}} #7
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// CHECK: walrus{{.*}} #8
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// CHECK: #0 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87" "tune-cpu"="i686"
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// CHECK: #1 = {{.*}}"target-cpu"="ivybridge" "target-features"="+avx,+cx16,+cx8,+f16c,+fsgsbase,+fxsr,+mmx,+pclmul,+popcnt,+rdrnd,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt"
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// CHECK-NOT: tune-cpu
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// CHECK: #2 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-aes,-avx,-avx2,-avx512bf16,-avx512bitalg,-avx512bw,-avx512cd,-avx512dq,-avx512er,-avx512f,-avx512ifma,-avx512pf,-avx512vbmi,-avx512vbmi2,-avx512vl,-avx512vnni,-avx512vp2intersect,-avx512vpopcntdq,-f16c,-fma,-fma4,-gfni,-pclmul,-sha,-sse2,-sse3,-sse4.1,-sse4.2,-sse4a,-ssse3,-vaes,-vpclmulqdq,-xop" "tune-cpu"="i686"
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// CHECK: #3 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+mmx,+popcnt,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87" "tune-cpu"="i686"
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// CHECK: #4 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-avx,-avx2,-avx512bf16,-avx512bitalg,-avx512bw,-avx512cd,-avx512dq,-avx512er,-avx512f,-avx512ifma,-avx512pf,-avx512vbmi,-avx512vbmi2,-avx512vl,-avx512vnni,-avx512vp2intersect,-avx512vpopcntdq,-f16c,-fma,-fma4,-sse4.1,-sse4.2,-vaes,-vpclmulqdq,-xop" "tune-cpu"="i686"
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// CHECK: #5 = {{.*}}"target-cpu"="ivybridge" "target-features"="+avx,+cx16,+cx8,+f16c,+fsgsbase,+fxsr,+mmx,+pclmul,+popcnt,+rdrnd,+sahf,+sse,+sse2,+sse3,+sse4.1,+sse4.2,+ssse3,+x87,+xsave,+xsaveopt,-aes,-vaes"
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// CHECK-NOT: tune-cpu
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// CHECK: #6 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87,-3dnow,-3dnowa,-mmx"
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// CHECK: #7 = {{.*}}"target-cpu"="lakemont" "target-features"="+cx8,+mmx"
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// CHECK-NOT: tune-cpu
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// CHECK: #8 = {{.*}}"target-cpu"="i686" "target-features"="+cx8,+x87" "tune-cpu"="sandybridge"
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