1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=i686-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=X32
3 ; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=X64
5 ; This test makes sure that the compiler does not crash with an
6 ; assertion failure when trying to fold a vector shift left
7 ; by immediate count if the type of the input vector is different
10 ; This happens for example when lowering a shift left of a MVT::v16i8 vector.
11 ; This is custom lowered into the following sequence:
13 ; A = VSHLI(MVT::v8i16, r & (char16)15, 4)
14 ; B = BITCAST MVT::v16i8, A
15 ; VSELECT(r, B, count);
17 ; C = VSHLI(MVT::v8i16, r & (char16)63, 2)
18 ; D = BITCAST MVT::v16i8, C
19 ; r = VSELECT(r, C, count);
21 ; VSELECT(r, r+r, count);
24 ; Where 'r' is a vector of type MVT::v16i8, and
25 ; 'count' is the vector shift count.
27 define <16 x i8> @do_not_crash(i8*, i32*, i64*, i32, i64, i8) {
28 ; X32-LABEL: do_not_crash:
29 ; X32: # %bb.0: # %entry
30 ; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
31 ; X32-NEXT: movl {{[0-9]+}}(%esp), %ecx
32 ; X32-NEXT: movb %al, (%ecx)
33 ; X32-NEXT: movd %eax, %xmm0
34 ; X32-NEXT: psllq $56, %xmm0
35 ; X32-NEXT: movdqa {{.*#+}} xmm2 = [255,255,255,255,255,255,255,0,255,255,255,255,255,255,255,255]
36 ; X32-NEXT: movdqa %xmm2, %xmm1
37 ; X32-NEXT: pandn %xmm0, %xmm1
38 ; X32-NEXT: por %xmm2, %xmm1
39 ; X32-NEXT: pcmpeqd %xmm2, %xmm2
40 ; X32-NEXT: psllw $5, %xmm1
41 ; X32-NEXT: pxor %xmm3, %xmm3
42 ; X32-NEXT: pxor %xmm0, %xmm0
43 ; X32-NEXT: pcmpgtb %xmm1, %xmm0
44 ; X32-NEXT: pxor %xmm0, %xmm2
45 ; X32-NEXT: pand {{\.LCPI.*}}, %xmm0
46 ; X32-NEXT: por %xmm2, %xmm0
47 ; X32-NEXT: paddb %xmm1, %xmm1
48 ; X32-NEXT: pxor %xmm2, %xmm2
49 ; X32-NEXT: pcmpgtb %xmm1, %xmm2
50 ; X32-NEXT: movdqa %xmm2, %xmm4
51 ; X32-NEXT: pandn %xmm0, %xmm4
52 ; X32-NEXT: psllw $2, %xmm0
53 ; X32-NEXT: pand %xmm2, %xmm0
54 ; X32-NEXT: pand {{\.LCPI.*}}, %xmm0
55 ; X32-NEXT: por %xmm4, %xmm0
56 ; X32-NEXT: paddb %xmm1, %xmm1
57 ; X32-NEXT: pcmpgtb %xmm1, %xmm3
58 ; X32-NEXT: movdqa %xmm3, %xmm1
59 ; X32-NEXT: pandn %xmm0, %xmm1
60 ; X32-NEXT: paddb %xmm0, %xmm0
61 ; X32-NEXT: pand %xmm3, %xmm0
62 ; X32-NEXT: por %xmm1, %xmm0
65 ; X64-LABEL: do_not_crash:
66 ; X64: # %bb.0: # %entry
67 ; X64-NEXT: movb %r9b, (%rdi)
68 ; X64-NEXT: movd %r9d, %xmm0
69 ; X64-NEXT: psllq $56, %xmm0
70 ; X64-NEXT: movdqa {{.*#+}} xmm2 = [255,255,255,255,255,255,255,0,255,255,255,255,255,255,255,255]
71 ; X64-NEXT: movdqa %xmm2, %xmm1
72 ; X64-NEXT: pandn %xmm0, %xmm1
73 ; X64-NEXT: por %xmm2, %xmm1
74 ; X64-NEXT: pcmpeqd %xmm2, %xmm2
75 ; X64-NEXT: psllw $5, %xmm1
76 ; X64-NEXT: pxor %xmm3, %xmm3
77 ; X64-NEXT: pxor %xmm0, %xmm0
78 ; X64-NEXT: pcmpgtb %xmm1, %xmm0
79 ; X64-NEXT: pxor %xmm0, %xmm2
80 ; X64-NEXT: pand {{.*}}(%rip), %xmm0
81 ; X64-NEXT: por %xmm2, %xmm0
82 ; X64-NEXT: paddb %xmm1, %xmm1
83 ; X64-NEXT: pxor %xmm2, %xmm2
84 ; X64-NEXT: pcmpgtb %xmm1, %xmm2
85 ; X64-NEXT: movdqa %xmm2, %xmm4
86 ; X64-NEXT: pandn %xmm0, %xmm4
87 ; X64-NEXT: psllw $2, %xmm0
88 ; X64-NEXT: pand %xmm2, %xmm0
89 ; X64-NEXT: pand {{.*}}(%rip), %xmm0
90 ; X64-NEXT: por %xmm4, %xmm0
91 ; X64-NEXT: paddb %xmm1, %xmm1
92 ; X64-NEXT: pcmpgtb %xmm1, %xmm3
93 ; X64-NEXT: movdqa %xmm3, %xmm1
94 ; X64-NEXT: pandn %xmm0, %xmm1
95 ; X64-NEXT: paddb %xmm0, %xmm0
96 ; X64-NEXT: pand %xmm3, %xmm0
97 ; X64-NEXT: por %xmm1, %xmm0
101 %L5 = load i8, i8* %0
102 %I8 = insertelement <16 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, i8 %L5, i32 7
103 %B51 = shl <16 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, %I8