Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/c-c++-common/pr81376.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-original" } */
3
4 typedef double c_t;
5 typedef int a_t;
6 int f(a_t a1, a_t a2) {
7 return (c_t) a1 < (c_t) a2;
8 /* { dg-final { scan-tree-dump "return (<retval> = )?a1 < a2" "original" } } */
9 }
10
11 void f1(short a, short b)
12 {
13 volatile int s_s;
14 s_s = (float) a < (float) b;
15 /* { dg-final { scan-tree-dump "s_s = a < b" "original" } } */
16 }
17
18 void f2(unsigned short a, unsigned short b)
19 {
20 volatile int us_us;
21 us_us = (float) a < (float) b;
22 /* { dg-final { scan-tree-dump "us_us = a < b" "original" } } */
23 }
24
25 /* We don't optimize here because neither of integral types is
26 subset of the other. */
27 void f3(unsigned short a, short b)
28 {
29 volatile int us_s;
30 us_s = (float) a < (float) b;
31 /* { dg-final { scan-tree-dump "us_s = \\(float\\) a < \\(float\\) b" "original" } } */
32 }
33
34 void f4(unsigned short a, int b)
35 {
36 volatile int us_i;
37 us_i = (double) a < (double) b;
38 /* { dg-final { scan-tree-dump "us_i = \\(int\\) a < b" "original" } } */
39 }
40
41 /* We don't optimize here because neither of integral types is
42 subset of the other. */
43 void f5(short a, unsigned int b)
44 {
45 volatile int s_ui;
46 s_ui = (double) a < (double) b;
47 /* { dg-final { scan-tree-dump "s_ui = \\(double\\) a < \\(double\\) b" "original" } } */
48 }