This is an archive of the discontinued LLVM Phabricator instance.

Differential D45311

[X86] Introduce wbinvd intrinsic
ClosedPublic

Authored by GBuella on Apr 5 2018, 2:01 AM.

Details

Reviewers
craig.topper
echristo
Commits
rGe708a09e2112: [X86] Introduce wbinvd intrinsic
rC329937: [X86] Introduce wbinvd intrinsic
rL329937: [X86] Introduce wbinvd intrinsic
Summary

A previously missing intrinsic for an old instruction.

Diff Detail

Event Timeline

GBuella created this revision.Apr 5 2018, 2:01 AM
Herald added a subscriber: cfe-commits. · View Herald TranscriptApr 5 2018, 2:01 AM
Harbormaster completed remote builds in B16764: Diff 141115.Apr 5 2018, 2:02 AM
GBuella added a comment.EditedApr 5 2018, 2:03 AM

The reason is, the _wbinvd intrinsic, and builtin were just recently introduced in GCC.

craig.topper accepted this revision.Apr 7 2018, 1:28 PM

LGTM

This revision is now accepted and ready to land.Apr 7 2018, 1:28 PM
GBuella updated this revision to Diff 142142.Apr 12 2018, 3:38 AM
GBuella retitled this revision from Introduce wbinvd intrinsic to [X86] Introduce wbinvd intrinsic.
Closed by commit rL329937: [X86] Introduce wbinvd intrinsic (authored by GBuella). · Explain WhyApr 12 2018, 11:45 AM
This revision was automatically updated to reflect the committed changes.
Herald added a subscriber: llvm-commits. · View Herald TranscriptApr 12 2018, 11:45 AM

Revision Contents

PathSize
include/
clang/
Basic/
2 lines
lib/
Headers/
5 lines
test/
CodeGen/
10 lines

Diff 141115

include/clang/Basic/BuiltinsX86.def

Show First 20 Lines • Show All 673 Lines • ▼ Show 20 Lines
TARGET_BUILTIN(__builtin_ia32_clrssbsy, "vv*", "", "shstk") TARGET_BUILTIN(__builtin_ia32_clrssbsy, "vv*", "", "shstk")
//CLFLUSHOPT //CLFLUSHOPT
TARGET_BUILTIN(__builtin_ia32_clflushopt, "vvC*", "", "clflushopt") TARGET_BUILTIN(__builtin_ia32_clflushopt, "vvC*", "", "clflushopt")
//CLWB //CLWB
TARGET_BUILTIN(__builtin_ia32_clwb, "vvC*", "", "clwb") TARGET_BUILTIN(__builtin_ia32_clwb, "vvC*", "", "clwb")
TARGET_BUILTIN(__builtin_ia32_wbinvd, "v", "", "")
// ADX // ADX
TARGET_BUILTIN(__builtin_ia32_addcarryx_u32, "UcUcUiUiUi*", "", "adx") TARGET_BUILTIN(__builtin_ia32_addcarryx_u32, "UcUcUiUiUi*", "", "adx")
TARGET_BUILTIN(__builtin_ia32_addcarry_u32, "UcUcUiUiUi*", "", "") TARGET_BUILTIN(__builtin_ia32_addcarry_u32, "UcUcUiUiUi*", "", "")
TARGET_BUILTIN(__builtin_ia32_subborrow_u32, "UcUcUiUiUi*", "", "") TARGET_BUILTIN(__builtin_ia32_subborrow_u32, "UcUcUiUiUi*", "", "")
// RDSEED // RDSEED
TARGET_BUILTIN(__builtin_ia32_rdseed16_step, "UiUs*", "", "rdseed") TARGET_BUILTIN(__builtin_ia32_rdseed16_step, "UiUs*", "", "rdseed")
TARGET_BUILTIN(__builtin_ia32_rdseed32_step, "UiUi*", "", "rdseed") TARGET_BUILTIN(__builtin_ia32_rdseed32_step, "UiUi*", "", "rdseed")
▲ Show 20 Lines • Show All 1,222 Lines • Show Last 20 Lines

lib/Headers/ia32intrin.h

Show First 20 Lines • Show All 64 Lines • ▼ Show 20 Lines
__rdtscp(unsigned int *__A) { __rdtscp(unsigned int *__A) {
return __builtin_ia32_rdtscp(__A); return __builtin_ia32_rdtscp(__A);
} }
#define _rdtsc() __rdtsc() #define _rdtsc() __rdtsc()
#define _rdpmc(A) __rdpmc(A) #define _rdpmc(A) __rdpmc(A)
static __inline__ void __attribute__((__always_inline__, __nodebug__))
_wbinvd(void) {
return __builtin_ia32_wbinvd();
}
#endif /* __IA32INTRIN_H */ #endif /* __IA32INTRIN_H */

test/CodeGen/builtin-wbinvd.c

  • This file was added.
// RUN: %clang_cc1 %s -ffreestanding -triple=x86_64-unknown-unknown -emit-llvm -o - -Wall -Werror | FileCheck %s
// RUN: %clang_cc1 %s -ffreestanding -triple=i386-unknown-unknown -emit-llvm -o - -Wall -Werror | FileCheck %s
#include <x86intrin.h>
void test_wbinvd(void) {
//CHECK-LABEL: @test_wbinvd
//CHECK: @llvm.x86.wbinvd
_wbinvd();
}