1 ; RUN: llc < %s -regalloc=fast -optimize-regalloc=0 -mtriple=i686-- -mattr=+mmx | grep esi
3 ; Local register allocator was refusing to use ESI, EDI, and EBP so it ran out of
5 define void @transpose4x4(i8* %dst, i8* %src, i32 %dst_stride, i32 %src_stride) {
7 %dst_addr = alloca i8* ; <i8**> [#uses=5]
8 %src_addr = alloca i8* ; <i8**> [#uses=5]
9 %dst_stride_addr = alloca i32 ; <i32*> [#uses=4]
10 %src_stride_addr = alloca i32 ; <i32*> [#uses=4]
11 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
12 store i8* %dst, i8** %dst_addr
13 store i8* %src, i8** %src_addr
14 store i32 %dst_stride, i32* %dst_stride_addr
15 store i32 %src_stride, i32* %src_stride_addr
16 %tmp = load i8*, i8** %dst_addr, align 4 ; <i8*> [#uses=1]
17 %tmp1 = getelementptr i8, i8* %tmp, i32 0 ; <i8*> [#uses=1]
18 %tmp12 = bitcast i8* %tmp1 to i32* ; <i32*> [#uses=1]
19 %tmp3 = load i8*, i8** %dst_addr, align 4 ; <i8*> [#uses=1]
20 %tmp4 = load i32, i32* %dst_stride_addr, align 4 ; <i32> [#uses=1]
21 %tmp5 = getelementptr i8, i8* %tmp3, i32 %tmp4 ; <i8*> [#uses=1]
22 %tmp56 = bitcast i8* %tmp5 to i32* ; <i32*> [#uses=1]
23 %tmp7 = load i32, i32* %dst_stride_addr, align 4 ; <i32> [#uses=1]
24 %tmp8 = mul i32 %tmp7, 2 ; <i32> [#uses=1]
25 %tmp9 = load i8*, i8** %dst_addr, align 4 ; <i8*> [#uses=1]
26 %tmp10 = getelementptr i8, i8* %tmp9, i32 %tmp8 ; <i8*> [#uses=1]
27 %tmp1011 = bitcast i8* %tmp10 to i32* ; <i32*> [#uses=1]
28 %tmp13 = load i32, i32* %dst_stride_addr, align 4 ; <i32> [#uses=1]
29 %tmp14 = mul i32 %tmp13, 3 ; <i32> [#uses=1]
30 %tmp15 = load i8*, i8** %dst_addr, align 4 ; <i8*> [#uses=1]
31 %tmp16 = getelementptr i8, i8* %tmp15, i32 %tmp14 ; <i8*> [#uses=1]
32 %tmp1617 = bitcast i8* %tmp16 to i32* ; <i32*> [#uses=1]
33 %tmp18 = load i8*, i8** %src_addr, align 4 ; <i8*> [#uses=1]
34 %tmp19 = getelementptr i8, i8* %tmp18, i32 0 ; <i8*> [#uses=1]
35 %tmp1920 = bitcast i8* %tmp19 to i32* ; <i32*> [#uses=1]
36 %tmp21 = load i8*, i8** %src_addr, align 4 ; <i8*> [#uses=1]
37 %tmp22 = load i32, i32* %src_stride_addr, align 4 ; <i32> [#uses=1]
38 %tmp23 = getelementptr i8, i8* %tmp21, i32 %tmp22 ; <i8*> [#uses=1]
39 %tmp2324 = bitcast i8* %tmp23 to i32* ; <i32*> [#uses=1]
40 %tmp25 = load i32, i32* %src_stride_addr, align 4 ; <i32> [#uses=1]
41 %tmp26 = mul i32 %tmp25, 2 ; <i32> [#uses=1]
42 %tmp27 = load i8*, i8** %src_addr, align 4 ; <i8*> [#uses=1]
43 %tmp28 = getelementptr i8, i8* %tmp27, i32 %tmp26 ; <i8*> [#uses=1]
44 %tmp2829 = bitcast i8* %tmp28 to i32* ; <i32*> [#uses=1]
45 %tmp30 = load i32, i32* %src_stride_addr, align 4 ; <i32> [#uses=1]
46 %tmp31 = mul i32 %tmp30, 3 ; <i32> [#uses=1]
47 %tmp32 = load i8*, i8** %src_addr, align 4 ; <i8*> [#uses=1]
48 %tmp33 = getelementptr i8, i8* %tmp32, i32 %tmp31 ; <i8*> [#uses=1]
49 %tmp3334 = bitcast i8* %tmp33 to i32* ; <i32*> [#uses=1]
50 call void asm sideeffect "movd $4, %mm0 \0A\09movd $5, %mm1 \0A\09movd $6, %mm2 \0A\09movd $7, %mm3 \0A\09punpcklbw %mm1, %mm0 \0A\09punpcklbw %mm3, %mm2 \0A\09movq %mm0, %mm1 \0A\09punpcklwd %mm2, %mm0 \0A\09punpckhwd %mm2, %mm1 \0A\09movd %mm0, $0 \0A\09punpckhdq %mm0, %mm0 \0A\09movd %mm0, $1 \0A\09movd %mm1, $2 \0A\09punpckhdq %mm1, %mm1 \0A\09movd %mm1, $3 \0A\09", "=*m,=*m,=*m,=*m,*m,*m,*m,*m,~{dirflag},~{fpsr},~{flags}"( i32* %tmp12, i32* %tmp56, i32* %tmp1011, i32* %tmp1617, i32* %tmp1920, i32* %tmp2324, i32* %tmp2829, i32* %tmp3334 ) nounwind
53 return: ; preds = %entry