Roman Lebedev
|
141357663e
|
[InstCombine] (-NSW x) u<= x --> x s<=0 (PR39480)
Name: (-x) u<= x --> x s<= 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp ule i8 %neg_x, %x
=>
%r = icmp sle i8 %x, 0
https://rise4fun.com/Alive/V22
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:36 +03:00 |
|
Roman Lebedev
|
132be1f502
|
[InstCombine] (-NSW x) u< x --> x s< 0 (PR39480)
Name: (-x) u< x --> x s< 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp ult i8 %neg_x, %x
=>
%r = icmp slt i8 %x, 0
https://rise4fun.com/Alive/zSuf
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:36 +03:00 |
|
Roman Lebedev
|
0e1241a3c9
|
[InstCombine] (-NSW x) u>= x --> x s>= 0 (PR39480)
Name: (-x) u>= x --> x s>= 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp uge i8 %neg_x, %x
=>
%r = icmp sge i8 %x, 0
https://rise4fun.com/Alive/LLHd
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:35 +03:00 |
|
Roman Lebedev
|
16c642fa39
|
[InstCombine] (-NSW x) u> x --> x s> 0 (PR39480)
Name: (-x) u> x --> x s> 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp ugt i8 %neg_x, %x
=>
%r = icmp sgt i8 %x, 0
https://rise4fun.com/Alive/Raea
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:35 +03:00 |
|
Roman Lebedev
|
59387c0dd7
|
[InstCombine] (-NSW x) s<= x --> x s>= 0 (PR39480)
Name: (-x) s<= x --> x >= 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp sle i8 %neg_x, %x
=>
%r = icmp sge i8 %x, 0
https://rise4fun.com/Alive/91k
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:35 +03:00 |
|
Roman Lebedev
|
01a6c4bd26
|
[InstCombine] (-NSW x) s< x --> x s> 0 (PR39480)
Name: (-x) s< x --> x > 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp slt i8 %neg_x, %x
=>
%r = icmp sgt i8 %x, 0
https://rise4fun.com/Alive/3IXb
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:35 +03:00 |
|
Roman Lebedev
|
3885207651
|
[InstCombine] (-NSW x) s>= x --> x s<= 0 (PR39480)
Name: (-x) s>= x --> x s<= 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp sge i8 %neg_x, %x
=>
%r = icmp sle i8 %x, 0
https://rise4fun.com/Alive/Hdip
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:34 +03:00 |
|
Roman Lebedev
|
8878b79cfe
|
[InstCombine] (-NSW x) ==/!= x --> x ==/!= 0 (PR39480)
Name: (-x) == x --> x == 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp eq i8 %neg_x, %x
=>
%r = icmp eq i8 %x, 0
Name: (-x) != x --> x != 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp ne i8 %neg_x, %x
=>
%r = icmp ne i8 %x, 0
https://rise4fun.com/Alive/4slH
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:34 +03:00 |
|
Roman Lebedev
|
5060f5682b
|
[InstCombine] (-NSW x) s> x --> x s< 0 (PR39480)
Name: (-x) s> x --> x s< 0
%neg_x = sub nsw i8 0, %x ; %x must not be INT_MIN
%r = icmp sgt i8 %neg_x, %x
=>
%r = icmp slt i8 %x, 0
https://rise4fun.com/Alive/ZslD
https://bugs.llvm.org/show_bug.cgi?id=39480
|
2020-08-06 11:50:34 +03:00 |
|
Roman Lebedev
|
664e1784cd
|
[NFC][InstCombine] Add tests for comparisons between x and negation of x (PR39480)
|
2020-08-06 11:50:34 +03:00 |