mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 06:30:19 +00:00
ed2232502e
2. Using zero-extended value of Scale and unsigned division is safe provided
that Scale doesn't have the sign bit set.
Previously these 2 instructions:
%p = bitcast [100 x {i8,i8,i8}]* %x to i8*
%q = getelementptr i8* %p, i32 -4
were combined into:
%q = getelementptr [100 x { i8, i8, i8 }]* %x, i32 0,
i32 1431655764, i32 0
what was incorrect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44936 91177308-0d34-0410-b5e6-96231b3b80d8
11 lines
377 B
LLVM
11 lines
377 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep 1431655764
|
|
|
|
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
|
|
|
|
define i8* @foo([100 x {i8,i8,i8}]* %x) {
|
|
entry:
|
|
%p = bitcast [100 x {i8,i8,i8}]* %x to i8*
|
|
%q = getelementptr i8* %p, i32 -4
|
|
ret i8* %q
|
|
}
|