1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt < %s -passes=instcombine -S | FileCheck %s
4 define double @a(<1 x i64> %y) {
6 ; CHECK-NEXT: [[BC:%.*]] = bitcast <1 x i64> [[Y:%.*]] to <1 x double>
7 ; CHECK-NEXT: [[C:%.*]] = extractelement <1 x double> [[BC]], i64 0
8 ; CHECK-NEXT: ret double [[C]]
10 %c = bitcast <1 x i64> %y to double
14 define i64 @b(<1 x i64> %y) {
16 ; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x i64> [[Y:%.*]], i64 0
17 ; CHECK-NEXT: ret i64 [[TMP1]]
19 %c = bitcast <1 x i64> %y to i64
23 define <1 x i64> @c(double %y) {
25 ; CHECK-NEXT: [[C:%.*]] = bitcast double [[Y:%.*]] to <1 x i64>
26 ; CHECK-NEXT: ret <1 x i64> [[C]]
28 %c = bitcast double %y to <1 x i64>
32 define <1 x i64> @d(i64 %y) {
34 ; CHECK-NEXT: [[C:%.*]] = insertelement <1 x i64> poison, i64 [[Y:%.*]], i64 0
35 ; CHECK-NEXT: ret <1 x i64> [[C]]
37 %c = bitcast i64 %y to <1 x i64>
41 define x86_mmx @e(<1 x i64> %y) {
43 ; CHECK-NEXT: [[TMP1:%.*]] = extractelement <1 x i64> [[Y:%.*]], i64 0
44 ; CHECK-NEXT: [[C:%.*]] = bitcast i64 [[TMP1]] to x86_mmx
45 ; CHECK-NEXT: ret x86_mmx [[C]]
47 %c = bitcast <1 x i64> %y to x86_mmx
51 define <1 x i64> @f(x86_mmx %y) {
53 ; CHECK-NEXT: [[TMP1:%.*]] = bitcast x86_mmx [[Y:%.*]] to i64
54 ; CHECK-NEXT: [[C:%.*]] = insertelement <1 x i64> poison, i64 [[TMP1]], i64 0
55 ; CHECK-NEXT: ret <1 x i64> [[C]]
57 %c = bitcast x86_mmx %y to <1 x i64>
61 define double @g(x86_mmx %x) {
64 ; CHECK-NEXT: [[TMP0:%.*]] = bitcast x86_mmx [[X:%.*]] to double
65 ; CHECK-NEXT: ret double [[TMP0]]
68 %0 = bitcast x86_mmx %x to <1 x i64>
69 %1 = bitcast <1 x i64> %0 to double
75 define <3 x i64> @bitcast_inselt_undef(double %x, i32 %idx) {
76 ; CHECK-LABEL: @bitcast_inselt_undef(
77 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x double> poison, double [[X:%.*]], i32 [[IDX:%.*]]
78 ; CHECK-NEXT: [[I:%.*]] = bitcast <3 x double> [[TMP1]] to <3 x i64>
79 ; CHECK-NEXT: ret <3 x i64> [[I]]
81 %xb = bitcast double %x to i64
82 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx
86 ; Integer source is ok; index is anything.
88 define <3 x float> @bitcast_inselt_undef_fp(i32 %x, i567 %idx) {
89 ; CHECK-LABEL: @bitcast_inselt_undef_fp(
90 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <3 x i32> poison, i32 [[X:%.*]], i567 [[IDX:%.*]]
91 ; CHECK-NEXT: [[I:%.*]] = bitcast <3 x i32> [[TMP1]] to <3 x float>
92 ; CHECK-NEXT: ret <3 x float> [[I]]
94 %xb = bitcast i32 %x to float
95 %i = insertelement <3 x float> poison, float %xb, i567 %idx
99 define <vscale x 3 x float> @bitcast_inselt_undef_vscale(i32 %x, i567 %idx) {
100 ; CHECK-LABEL: @bitcast_inselt_undef_vscale(
101 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <vscale x 3 x i32> poison, i32 [[X:%.*]], i567 [[IDX:%.*]]
102 ; CHECK-NEXT: [[I:%.*]] = bitcast <vscale x 3 x i32> [[TMP1]] to <vscale x 3 x float>
103 ; CHECK-NEXT: ret <vscale x 3 x float> [[I]]
105 %xb = bitcast i32 %x to float
106 %i = insertelement <vscale x 3 x float> poison, float %xb, i567 %idx
107 ret <vscale x 3 x float> %i
110 declare void @use(i64)
112 ; Negative test - extra use prevents canonicalization
114 define <3 x i64> @bitcast_inselt_undef_extra_use(double %x, i32 %idx) {
115 ; CHECK-LABEL: @bitcast_inselt_undef_extra_use(
116 ; CHECK-NEXT: [[XB:%.*]] = bitcast double [[X:%.*]] to i64
117 ; CHECK-NEXT: call void @use(i64 [[XB]])
118 ; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> poison, i64 [[XB]], i32 [[IDX:%.*]]
119 ; CHECK-NEXT: ret <3 x i64> [[I]]
121 %xb = bitcast double %x to i64
122 call void @use(i64 %xb)
123 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx
127 ; Negative test - source type must be scalar
129 define <3 x i64> @bitcast_inselt_undef_vec_src(<2 x i32> %x, i32 %idx) {
130 ; CHECK-LABEL: @bitcast_inselt_undef_vec_src(
131 ; CHECK-NEXT: [[XB:%.*]] = bitcast <2 x i32> [[X:%.*]] to i64
132 ; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> poison, i64 [[XB]], i32 [[IDX:%.*]]
133 ; CHECK-NEXT: ret <3 x i64> [[I]]
135 %xb = bitcast <2 x i32> %x to i64
136 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx
140 ; Negative test - source type must be scalar
142 define <3 x i64> @bitcast_inselt_undef_from_mmx(x86_mmx %x, i32 %idx) {
143 ; CHECK-LABEL: @bitcast_inselt_undef_from_mmx(
144 ; CHECK-NEXT: [[XB:%.*]] = bitcast x86_mmx [[X:%.*]] to i64
145 ; CHECK-NEXT: [[I:%.*]] = insertelement <3 x i64> poison, i64 [[XB]], i32 [[IDX:%.*]]
146 ; CHECK-NEXT: ret <3 x i64> [[I]]
148 %xb = bitcast x86_mmx %x to i64
149 %i = insertelement <3 x i64> poison, i64 %xb, i32 %idx
153 ; Reduce number of casts
155 define <2 x i64> @PR45748(double %x, double %y) {
156 ; CHECK-LABEL: @PR45748(
157 ; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x double> poison, double [[X:%.*]], i64 0
158 ; CHECK-NEXT: [[TMP2:%.*]] = insertelement <2 x double> [[TMP1]], double [[Y:%.*]], i64 1
159 ; CHECK-NEXT: [[I1:%.*]] = bitcast <2 x double> [[TMP2]] to <2 x i64>
160 ; CHECK-NEXT: ret <2 x i64> [[I1]]
162 %xb = bitcast double %x to i64
163 %i0 = insertelement <2 x i64> poison, i64 %xb, i32 0
164 %yb = bitcast double %y to i64
165 %i1 = insertelement <2 x i64> %i0, i64 %yb, i32 1