mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-05 13:30:38 +00:00
f35fd547ac
- Looking at the number of sign bits of the a sext instruction to determine whether new trunc + sext pair should be added when its source is being evaluated in a different type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62263 91177308-0d34-0410-b5e6-96231b3b80d8
12 lines
314 B
LLVM
12 lines
314 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep sext
|
|
|
|
define zeroext i16 @t(i8 zeroext %on_off, i16* nocapture %puls) nounwind readonly {
|
|
entry:
|
|
%0 = zext i8 %on_off to i32
|
|
%1 = add i32 %0, -1
|
|
%2 = sext i32 %1 to i64
|
|
%3 = getelementptr i16* %puls, i64 %2
|
|
%4 = load i16* %3, align 2
|
|
ret i16 %4
|
|
}
|