mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-29 23:12:55 +01:00
21 lines
802 B
LLVM
21 lines
802 B
LLVM
; RUN: llc < %s -march=x86 | \
|
|
; RUN: grep shld | count 1
|
|
;
|
|
; Check that the isel does not fold the shld, which already folds a load
|
|
; and has two uses, into a store.
|
|
|
|
@A = external global i32 ; <i32*> [#uses=2]
|
|
|
|
define i32 @test5(i32 %B, i8 %C) {
|
|
%tmp.1 = load i32* @A ; <i32> [#uses=1]
|
|
%shift.upgrd.1 = zext i8 %C to i32 ; <i32> [#uses=1]
|
|
%tmp.2 = shl i32 %tmp.1, %shift.upgrd.1 ; <i32> [#uses=1]
|
|
%tmp.3 = sub i8 32, %C ; <i8> [#uses=1]
|
|
%shift.upgrd.2 = zext i8 %tmp.3 to i32 ; <i32> [#uses=1]
|
|
%tmp.4 = lshr i32 %B, %shift.upgrd.2 ; <i32> [#uses=1]
|
|
%tmp.5 = or i32 %tmp.4, %tmp.2 ; <i32> [#uses=2]
|
|
store i32 %tmp.5, i32* @A
|
|
ret i32 %tmp.5
|
|
}
|
|
|