mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 00:12:50 +01:00
26 lines
903 B
LLVM
26 lines
903 B
LLVM
; Coalescing from R32 to a subset R32_. Once another register coalescer bug is
|
|
; fixed, the movb should go away as well.
|
|
|
|
; RUN: llc < %s -march=x86 -relocation-model=static | \
|
|
; RUN: grep movl
|
|
|
|
@B = external global i32 ; <i32*> [#uses=2]
|
|
@C = external global i16* ; <i16**> [#uses=2]
|
|
|
|
define void @test(i32 %A) {
|
|
%A.upgrd.1 = trunc i32 %A to i8 ; <i8> [#uses=1]
|
|
%tmp2 = load i32* @B ; <i32> [#uses=1]
|
|
%tmp3 = and i8 %A.upgrd.1, 16 ; <i8> [#uses=1]
|
|
%shift.upgrd.2 = zext i8 %tmp3 to i32 ; <i32> [#uses=1]
|
|
%tmp4 = shl i32 %tmp2, %shift.upgrd.2 ; <i32> [#uses=1]
|
|
store i32 %tmp4, i32* @B
|
|
%tmp6 = lshr i32 %A, 3 ; <i32> [#uses=1]
|
|
%tmp = load i16** @C ; <i16*> [#uses=1]
|
|
%tmp8 = ptrtoint i16* %tmp to i32 ; <i32> [#uses=1]
|
|
%tmp9 = add i32 %tmp8, %tmp6 ; <i32> [#uses=1]
|
|
%tmp9.upgrd.3 = inttoptr i32 %tmp9 to i16* ; <i16*> [#uses=1]
|
|
store i16* %tmp9.upgrd.3, i16** @C
|
|
ret void
|
|
}
|
|
|