https://github.com/MalaySanghi updated
https://github.com/llvm/llvm-project/pull/93774
>From 17c3fc95c0753ec013b22ce0c539992b24b21055 Mon Sep 17 00:00:00 2001
From: Malay Sanghi
Date: Wed, 29 May 2024 22:40:47 -0700
Subject: [PATCH 1/5] Add support for _outp{|w|d}
---
clang/lib/Headers/intrin.h | 17 +++
clang/test/CodeGen/X86/ms-x86-intrinsics.c | 25 +-
2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/clang/lib/Headers/intrin.h b/clang/lib/Headers/intrin.h
index 1227f45d5432b..b9d10a6941271 100644
--- a/clang/lib/Headers/intrin.h
+++ b/clang/lib/Headers/intrin.h
@@ -348,6 +348,23 @@ static inline unsigned long _inpd(unsigned short port) {
return ret;
}
+static inline int _outp(unsigned short port, int data) {
+ __asm__ volatile("outb %b0, %w1" : : "a"(data), "Nd"(port) : "memory");
+ return data;
+}
+
+static inline unsigned short
+_outpw(unsigned short port, unsigned short data) {
+ __asm__ volatile("outw %w0, %w1" : : "a"(data), "Nd"(port) : "memory");
+ return data;
+}
+
+static inline unsigned long _outpd(unsigned short port,
+ unsigned long data) {
+ __asm__ volatile("outl %k0, %w1" : : "a"(data), "Nd"(port) : "memory");
+ return data;
+}
+
#endif
#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
diff --git a/clang/test/CodeGen/X86/ms-x86-intrinsics.c
b/clang/test/CodeGen/X86/ms-x86-intrinsics.c
index 9566951b44d2d..79fa7028d8e05 100644
--- a/clang/test/CodeGen/X86/ms-x86-intrinsics.c
+++ b/clang/test/CodeGen/X86/ms-x86-intrinsics.c
@@ -63,7 +63,6 @@ unsigned __int64 test__emulu(unsigned int a, unsigned int b) {
// CHECK: [[RES:%[0-9]+]] = mul nuw i64 [[Y]], [[X]]
// CHECK: ret i64 [[RES]]
-
int test_inp(unsigned short port) {
return _inp(port);
}
@@ -88,6 +87,30 @@ unsigned long test_inpd(unsigned short port) {
// CHECK: [[TMP0:%.*]] = tail call i32 asm sideeffect "inl ${1:w},
${0:k}", "={ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i16 [[PORT]])
// CHECK-NEXT: ret i32 [[TMP0]]
+int test_outp(unsigned short port, int data) {
+return _outp(port, data);
+}
+// CHECK-LABEL: i32 @test_outp(
+// CHECK-SAME: [[PORT:%.*]], i32 noundef returned [[DATA:%.*]])
+// CHECK-NEXT: tail call void asm sideeffect "outb ${0:b}, ${1:w}",
"{ax},N{dx},~{memory},~{dirflag},~{fpsr},~{flags}"(i32 [[DATA]], i16 [[PORT]]
+// CHECK-NEXT: ret i32 [[DATA]]
+
+unsigned short test_outpw(unsigned short port, unsigned short data) {
+return _outpw(port, data);
+}
+// CHECK-LABEL: i16 @test_outpw(
+// CHECK-SAME: [[PORT:%.*]], i16 noundef returned zeroext [[DATA:%.*]])
+// CHECK-NEXT: tail call void asm sideeffect "outw ${0:w}, ${1:w}",
"{ax},N{dx},~{memory},~{dirflag},~{fpsr},~{flags}"(i16 [[DATA]], i16 [[PORT]])
+// CHECK-NEXT: ret i16 [[DATA]]
+
+unsigned long test_outpd(unsigned short port, unsigned long data) {
+return _outpd(port, data);
+}
+// CHECK-LABEL: i32 @test_outpd(
+// CHECK-SAME: [[PORT:%.*]], i32 noundef returned [[DATA:%.*]])
+// CHECK-NEXT: tail call void asm sideeffect "outl ${0:k}, ${1:w}",
"{ax},N{dx},~{memory},~{dirflag},~{fpsr},~{flags}"(i32 [[DATA]], i16 [[PORT]])
+// CHECK-NEXT: ret i32 [[DATA]]
+
#if defined(__x86_64__)
char test__readgsbyte(unsigned long Offset) {
>From f0f4675c6ef13655a089d78bada9f55bb9ce5123 Mon Sep 17 00:00:00 2001
From: Malay Sanghi
Date: Thu, 30 May 2024 00:01:45 -0700
Subject: [PATCH 2/5] remove memory constraint and fix definition.
---
clang/lib/Headers/intrin.h | 9 +++--
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/clang/lib/Headers/intrin.h b/clang/lib/Headers/intrin.h
index b9d10a6941271..92c7aa134c36d 100644
--- a/clang/lib/Headers/intrin.h
+++ b/clang/lib/Headers/intrin.h
@@ -349,25 +349,22 @@ static inline unsigned long _inpd(unsigned short port) {
}
static inline int _outp(unsigned short port, int data) {
- __asm__ volatile("outb %b0, %w1" : : "a"(data), "Nd"(port) : "memory");
+ __asm__ volatile("outb %b0, %w1" : : "a"(data), "Nd"(port));
return data;
}
static inline unsigned short
_outpw(unsigned short port, unsigned short data) {
- __asm__ volatile("outw %w0, %w1" : : "a"(data), "Nd"(port) : "memory");
+ __asm__ volatile("outw %w0, %w1" : : "a"(data), "Nd"(port));
return data;
}
static inline unsigned long _outpd(unsigned short port,
unsigned long data) {
- __asm__ volatile("outl %k0, %w1" : : "a"(data), "Nd"(port) : "memory");
+ __asm__ volatile("outl %k0, %w1" : : "a"(data), "Nd"(port));
return data;
}
-#endif
-
-#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
static __inline__ void __DEFAULT_FN_ATTRS __nop(void) {
__asm__ volatile("nop");
}
>From 794872bf7fc0ccbe9f2842f8624803f199d1a72f Mon Sep 17 00:00:00 2001
From: Malay Sanghi
Date: Fri, 31 May 2024 01:06:11 -0700
Subject: [PATCH 3/5] merge checks
---
clang/lib/Headers/intrin.h | 8
