6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-24 22:24:54 +00:00
Code Issues Projects Releases Wiki Activity

Change behavior of calling bitcasted alias functions.

Browse Source 
It will now only convert the arguments / return value and call
the underlying function if the types are able to be bitcasted.
This avoids using fp<->int conversions that would occur before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187444 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2013-07-30 20:45:05 +00:00
parent 80bec28b66
commit f34dc428fa
10 changed files with 430 additions and 83 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
test/Transforms/InstCombine/2008-01-06-BitCastAttributes.ll
View File

@@ -4,22 +4,27 @@
; CHECK-NOT: bitcast
define void @a() {
ret void
ret void
}
define signext i32 @b(i32* inreg %x) {
ret i32 0
ret i32 0
}
define void @c(...) {
ret void
ret void
}
define void @g(i32* %y) {
call void bitcast (void ()* @a to void (i32*)*)( i32* noalias %y )
call <2 x i32> bitcast (i32 (i32*)* @b to <2 x i32> (i32*)*)( i32* inreg null ) ; <<2 x i32>>:1 [#uses=0]
; CHECK-LABEL: @g(
; CHECK: call i64 bitcast (i32 (i32*)* @b to i64 (i32)*)(i32 0)
%x = call i64 bitcast (i32 (i32*)* @b to i64 (i32)*)( i32 0 ) ; <i64> [#uses=0]
call void bitcast (void (...)* @c to void (i32)*)( i32 0 )
call void bitcast (void (...)* @c to void (i32)*)( i32 zeroext 0 )
ret void
; The rest should not have bitcasts remaining
; CHECK-NOT: bitcast
call void bitcast (void ()* @a to void (i32*)*)( i32* noalias %y )
call <2 x i32> bitcast (i32 (i32*)* @b to <2 x i32> (i32*)*)( i32* inreg null ) ; <<2 x i32>>:1 [#uses=0]
call void bitcast (void (...)* @c to void (i32)*)( i32 0 )
call void bitcast (void (...)* @c to void (i32)*)( i32 zeroext 0 )
ret void
}