atrosinenko updated this revision to Diff 287032.
atrosinenko added a comment.
Explicitly mark .inc file as a C source like is already done for almost all
`*_impl.inc` files.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D86289/new/
https://reviews.llvm.org/D86289
Files:
compiler-rt/lib/builtins/int_mulo_impl.inc
compiler-rt/lib/builtins/mulodi4.c
compiler-rt/lib/builtins/mulosi4.c
compiler-rt/lib/builtins/muloti4.c
Index: compiler-rt/lib/builtins/muloti4.c
===================================================================
--- compiler-rt/lib/builtins/muloti4.c
+++ compiler-rt/lib/builtins/muloti4.c
@@ -18,36 +18,11 @@
// Effects: sets *overflow to 1 if a * b overflows
+#define fixint_t ti_int
+#include "int_mulo_impl.inc"
+
COMPILER_RT_ABI ti_int __muloti4(ti_int a, ti_int b, int *overflow) {
- const int N = (int)(sizeof(ti_int) * CHAR_BIT);
- const ti_int MIN = (ti_int)1 << (N - 1);
- const ti_int MAX = ~MIN;
- *overflow = 0;
- ti_int result = a * b;
- if (a == MIN) {
- if (b != 0 && b != 1)
- *overflow = 1;
- return result;
- }
- if (b == MIN) {
- if (a != 0 && a != 1)
- *overflow = 1;
- return result;
- }
- ti_int sa = a >> (N - 1);
- ti_int abs_a = (a ^ sa) - sa;
- ti_int sb = b >> (N - 1);
- ti_int abs_b = (b ^ sb) - sb;
- if (abs_a < 2 || abs_b < 2)
- return result;
- if (sa == sb) {
- if (abs_a > MAX / abs_b)
- *overflow = 1;
- } else {
- if (abs_a > MIN / -abs_b)
- *overflow = 1;
- }
- return result;
+ return __muloXi4(a, b, overflow);
}
#endif // CRT_HAS_128BIT
Index: compiler-rt/lib/builtins/mulosi4.c
===================================================================
--- compiler-rt/lib/builtins/mulosi4.c
+++ compiler-rt/lib/builtins/mulosi4.c
@@ -10,40 +10,13 @@
//
//===----------------------------------------------------------------------===//
-#include "int_lib.h"
+#define fixint_t si_int
+#include "int_mulo_impl.inc"
// Returns: a * b
// Effects: sets *overflow to 1 if a * b overflows
COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow) {
- const int N = (int)(sizeof(si_int) * CHAR_BIT);
- const si_int MIN = (si_int)1 << (N - 1);
- const si_int MAX = ~MIN;
- *overflow = 0;
- si_int result = a * b;
- if (a == MIN) {
- if (b != 0 && b != 1)
- *overflow = 1;
- return result;
- }
- if (b == MIN) {
- if (a != 0 && a != 1)
- *overflow = 1;
- return result;
- }
- si_int sa = a >> (N - 1);
- si_int abs_a = (a ^ sa) - sa;
- si_int sb = b >> (N - 1);
- si_int abs_b = (b ^ sb) - sb;
- if (abs_a < 2 || abs_b < 2)
- return result;
- if (sa == sb) {
- if (abs_a > MAX / abs_b)
- *overflow = 1;
- } else {
- if (abs_a > MIN / -abs_b)
- *overflow = 1;
- }
- return result;
+ return __muloXi4(a, b, overflow);
}
Index: compiler-rt/lib/builtins/mulodi4.c
===================================================================
--- compiler-rt/lib/builtins/mulodi4.c
+++ compiler-rt/lib/builtins/mulodi4.c
@@ -10,40 +10,13 @@
//
//===----------------------------------------------------------------------===//
-#include "int_lib.h"
+#define fixint_t di_int
+#include "int_mulo_impl.inc"
// Returns: a * b
// Effects: sets *overflow to 1 if a * b overflows
COMPILER_RT_ABI di_int __mulodi4(di_int a, di_int b, int *overflow) {
- const int N = (int)(sizeof(di_int) * CHAR_BIT);
- const di_int MIN = (di_int)1 << (N - 1);
- const di_int MAX = ~MIN;
- *overflow = 0;
- di_int result = a * b;
- if (a == MIN) {
- if (b != 0 && b != 1)
- *overflow = 1;
- return result;
- }
- if (b == MIN) {
- if (a != 0 && a != 1)
- *overflow = 1;
- return result;
- }
- di_int sa = a >> (N - 1);
- di_int abs_a = (a ^ sa) - sa;
- di_int sb = b >> (N - 1);
- di_int abs_b = (b ^ sb) - sb;
- if (abs_a < 2 || abs_b < 2)
- return result;
- if (sa == sb) {
- if (abs_a > MAX / abs_b)
- *overflow = 1;
- } else {
- if (abs_a > MIN / -abs_b)
- *overflow = 1;
- }
- return result;
+ return __muloXi4(a, b, overflow);
}
Index: compiler-rt/lib/builtins/int_mulo_impl.inc
===================================================================
--- compiler-rt/lib/builtins/int_mulo_impl.inc
+++ compiler-rt/lib/builtins/int_mulo_impl.inc
@@ -1,4 +1,4 @@
-//===-- mulodi4.c - Implement __mulodi4 -----------------------------------===//
+//===-- int_mulo_impl.inc - Implement __mulo[sdt]i3 ---------------*- C -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
@@ -6,7 +6,7 @@
//
//===----------------------------------------------------------------------===//
//
-// This file implements __mulodi4 for the compiler_rt library.
+// Helper used by __mulosi3, __mulodi3 and __muloti3.
//
//===----------------------------------------------------------------------===//
@@ -16,12 +16,12 @@
// Effects: sets *overflow to 1 if a * b overflows
-COMPILER_RT_ABI di_int __mulodi4(di_int a, di_int b, int *overflow) {
- const int N = (int)(sizeof(di_int) * CHAR_BIT);
- const di_int MIN = (di_int)1 << (N - 1);
- const di_int MAX = ~MIN;
+static __inline fixint_t __muloXi4(fixint_t a, fixint_t b, int *overflow) {
+ const int N = (int)(sizeof(fixint_t) * CHAR_BIT);
+ const fixint_t MIN = (fixint_t)1 << (N - 1);
+ const fixint_t MAX = ~MIN;
*overflow = 0;
- di_int result = a * b;
+ fixint_t result = a * b;
if (a == MIN) {
if (b != 0 && b != 1)
*overflow = 1;
@@ -32,10 +32,10 @@
*overflow = 1;
return result;
}
- di_int sa = a >> (N - 1);
- di_int abs_a = (a ^ sa) - sa;
- di_int sb = b >> (N - 1);
- di_int abs_b = (b ^ sb) - sb;
+ fixint_t sa = a >> (N - 1);
+ fixint_t abs_a = (a ^ sa) - sa;
+ fixint_t sb = b >> (N - 1);
+ fixint_t abs_b = (b ^ sb) - sb;
if (abs_a < 2 || abs_b < 2)
return result;
if (sa == sb) {
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