; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=vector-combine -mtriple=arm64-apple-darwinos -S %s | FileCheck --check-prefixes=CHECK,LIMIT-DEFAULT %s
; RUN: opt -passes=vector-combine -mtriple=arm64-apple-darwinos -vector-combine-max-scan-instrs=2 -S %s | FileCheck --check-prefixes=CHECK,LIMIT2 %s
define i32 @load_extract_idx_0(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_idx_0(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 3
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 4
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 3
ret i32 %r
}
; If the original load had a smaller alignment than the scalar type, the
; smaller alignment should be used.
define i32 @load_extract_idx_0_small_alignment(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_idx_0_small_alignment(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 3
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 2
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x, align 2
%r = extractelement <4 x i32> %lv, i32 3
ret i32 %r
}
define i32 @load_extract_idx_1(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_idx_1(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 1
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 4
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 1
ret i32 %r
}
define i32 @load_extract_idx_2(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_idx_2(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 2
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 8
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 2
ret i32 %r
}
define i32 @load_extract_idx_3(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_idx_3(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 3
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 4
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 3
ret i32 %r
}
; Out-of-bounds index for extractelement, should not be converted to narrow
; load, because it would introduce a dereference of a poison pointer.
define i32 @load_extract_idx_4(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_idx_4(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 4
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 4
ret i32 %r
}
define i32 @load_extract_idx_var_i64(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX:%.*]]
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx
ret i32 %r
}
declare void @maythrow() readnone
define i32 @load_extract_idx_var_i64_known_valid_by_assume(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_assume(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[IDX:%.*]], 4
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: call void @maythrow()
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i64 [[IDX]]
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP0]], align 4
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%cmp = icmp ult i64 %idx, 4
call void @llvm.assume(i1 %cmp)
%lv = load <4 x i32>, <4 x i32>* %x
call void @maythrow()
%r = extractelement <4 x i32> %lv, i64 %idx
ret i32 %r
}
declare i1 @cond()
define i32 @load_extract_idx_var_i64_known_valid_by_assume_in_dominating_block(<4 x i32>* %x, i64 %idx, i1 %c.1) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_assume_in_dominating_block(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[IDX:%.*]], 4
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: br i1 [[C_1:%.*]], label [[LOOP:%.*]], label [[EXIT:%.*]]
; CHECK: loop:
; CHECK-NEXT: call void @maythrow()
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i64 [[IDX]]
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP0]], align 4
; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_2]], label [[LOOP]], label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[P:%.*]] = phi i32 [ [[R]], [[LOOP]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: ret i32 [[P]]
;
entry:
%cmp = icmp ult i64 %idx, 4
call void @llvm.assume(i1 %cmp)
br i1 %c.1, label %loop, label %exit
loop:
%lv = load <4 x i32>, <4 x i32>* %x
call void @maythrow()
%r = extractelement <4 x i32> %lv, i64 %idx
%c.2 = call i1 @cond()
br i1 %c.2, label %loop, label %exit
exit:
%p = phi i32 [ %r, %loop ], [ 0, %entry ]
ret i32 %p
}
define i32 @load_extract_idx_var_i64_known_valid_by_assume_in_non_dominating_block(<4 x i32>* %x, i64 %idx, i1 %c.1, i1 %c.2) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_assume_in_non_dominating_block(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C_1:%.*]], label [[ASSUME_CHECK:%.*]], label [[LOOP:%.*]]
; CHECK: assume_check:
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[IDX:%.*]], 4
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: br i1 [[C_2:%.*]], label [[LOOP]], label [[EXIT:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: call void @maythrow()
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX]]
; CHECK-NEXT: [[C_3:%.*]] = call i1 @cond()
; CHECK-NEXT: br i1 [[C_3]], label [[LOOP]], label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: [[P:%.*]] = phi i32 [ [[R]], [[LOOP]] ], [ 0, [[ASSUME_CHECK]] ]
; CHECK-NEXT: ret i32 0
;
entry:
br i1 %c.1, label %assume_check, label %loop
assume_check:
%cmp = icmp ult i64 %idx, 4
call void @llvm.assume(i1 %cmp)
br i1 %c.2, label %loop, label %exit
loop:
%lv = load <4 x i32>, <4 x i32>* %x
call void @maythrow()
%r = extractelement <4 x i32> %lv, i64 %idx
%c.3 = call i1 @cond()
br i1 %c.3, label %loop, label %exit
exit:
%p = phi i32 [ %r, %loop ], [ 0, %assume_check ]
ret i32 0
}
define i32 @load_extract_idx_var_i64_not_known_valid_by_assume_after_load(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_not_known_valid_by_assume_after_load(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[IDX:%.*]], 4
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: call void @maythrow()
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%cmp = icmp ult i64 %idx, 4
%lv = load <4 x i32>, <4 x i32>* %x
call void @maythrow()
call void @llvm.assume(i1 %cmp)
%r = extractelement <4 x i32> %lv, i64 %idx
ret i32 %r
}
define i32 @load_extract_idx_var_i64_not_known_valid_by_assume(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_not_known_valid_by_assume(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i64 [[IDX:%.*]], 5
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%cmp = icmp ult i64 %idx, 5
call void @llvm.assume(i1 %cmp)
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx
ret i32 %r
}
declare void @llvm.assume(i1)
define i32 @load_extract_idx_var_i64_known_valid_by_and(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_and(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_CLAMPED:%.*]] = and i64 [[IDX:%.*]], 3
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_CLAMPED]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%idx.clamped = and i64 %idx, 3
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx.clamped
ret i32 %r
}
define i32 @load_extract_idx_var_i64_known_valid_by_and_noundef(<4 x i32>* %x, i64 noundef %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_and_noundef(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_CLAMPED:%.*]] = and i64 [[IDX:%.*]], 3
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i64 [[IDX_CLAMPED]]
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP0]], align 4
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%idx.clamped = and i64 %idx, 3
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx.clamped
ret i32 %r
}
define i32 @load_extract_idx_var_i64_not_known_valid_by_and(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_not_known_valid_by_and(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_CLAMPED:%.*]] = and i64 [[IDX:%.*]], 4
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_CLAMPED]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%idx.clamped = and i64 %idx, 4
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx.clamped
ret i32 %r
}
define i32 @load_extract_idx_var_i64_known_valid_by_urem(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_urem(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_CLAMPED:%.*]] = urem i64 [[IDX:%.*]], 4
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_CLAMPED]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%idx.clamped = urem i64 %idx, 4
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx.clamped
ret i32 %r
}
define i32 @load_extract_idx_var_i64_known_valid_by_urem_noundef(<4 x i32>* %x, i64 noundef %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_known_valid_by_urem_noundef(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_CLAMPED:%.*]] = urem i64 [[IDX:%.*]], 4
; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i64 [[IDX_CLAMPED]]
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP0]], align 4
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%idx.clamped = urem i64 %idx, 4
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx.clamped
ret i32 %r
}
define i32 @load_extract_idx_var_i64_not_known_valid_by_urem(<4 x i32>* %x, i64 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i64_not_known_valid_by_urem(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_CLAMPED:%.*]] = urem i64 [[IDX:%.*]], 5
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_CLAMPED]]
; CHECK-NEXT: ret i32 [[R]]
;
entry:
%idx.clamped = urem i64 %idx, 5
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i64 %idx.clamped
ret i32 %r
}
define i32 @load_extract_idx_var_i32(<4 x i32>* %x, i32 %idx) {
; CHECK-LABEL: @load_extract_idx_var_i32(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 [[IDX:%.*]]
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 %idx
ret i32 %r
}
declare void @clobber()
define i32 @load_extract_clobber_call_before(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_clobber_call_before(
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 2
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 8
; CHECK-NEXT: ret i32 [[R]]
;
call void @clobber()
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 2
ret i32 %r
}
define i32 @load_extract_clobber_call_between(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_clobber_call_between(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 2
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
call void @clobber()
%r = extractelement <4 x i32> %lv, i32 2
ret i32 %r
}
define i32 @load_extract_clobber_call_after(<4 x i32>* %x) {
; CHECK-LABEL: @load_extract_clobber_call_after(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 2
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 8
; CHECK-NEXT: call void @clobber()
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 2
call void @clobber()
ret i32 %r
}
define i32 @load_extract_clobber_store_before(<4 x i32>* %x, i8* %y) {
; CHECK-LABEL: @load_extract_clobber_store_before(
; CHECK-NEXT: store i8 0, i8* [[Y:%.*]], align 1
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 2
; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 8
; CHECK-NEXT: ret i32 [[R]]
;
store i8 0, i8* %y
%lv = load <4 x i32>, <4 x i32>* %x
%r = extractelement <4 x i32> %lv, i32 2
ret i32 %r
}
define i32 @load_extract_clobber_store_between(<4 x i32>* %x, i8* %y) {
; CHECK-LABEL: @load_extract_clobber_store_between(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: store i8 0, i8* [[Y:%.*]], align 1
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 2
; CHECK-NEXT: ret i32 [[R]]
;
%lv = load <4 x i32>, <4 x i32>* %x
store i8 0, i8* %y
%r = extractelement <4 x i32> %lv, i32 2
ret i32 %r
}
define i32 @load_extract_clobber_store_between_limit(<4 x i32>* %x, i8* %y, <8 x i32> %z) {
; CHECK-LABEL: @load_extract_clobber_store_between_limit(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[Z_0:%.*]] = extractelement <8 x i32> [[Z:%.*]], i32 0
; CHECK-NEXT: [[Z_1:%.*]] = extractelement <8 x i32> [[Z]], i32 1
; CHECK-NEXT: [[ADD_0:%.*]] = add i32 [[Z_0]], [[Z_1]]
; CHECK-NEXT: [[Z_2:%.*]] = extractelement <8 x i32> [[Z]], i32 2
; CHECK-NEXT: [[ADD_1:%.*]] = add i32 [[ADD_0]], [[Z_2]]
; CHECK-NEXT: [[Z_3:%.*]] = extractelement <8 x i32> [[Z]], i32 3
; CHECK-NEXT: [[ADD_2:%.*]] = add i32 [[ADD_1]], [[Z_3]]
; CHECK-NEXT: [[Z_4:%.*]] = extractelement <8 x i32> [[Z]], i32 4
; CHECK-NEXT: [[ADD_3:%.*]] = add i32 [[ADD_2]], [[Z_4]]
; CHECK-NEXT: store i8 0, i8* [[Y:%.*]], align 1
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 2
; CHECK-NEXT: [[ADD_4:%.*]] = add i32 [[ADD_3]], [[R]]
; CHECK-NEXT: ret i32 [[ADD_4]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%z.0 = extractelement <8 x i32> %z, i32 0
%z.1 = extractelement <8 x i32> %z, i32 1
%add.0 = add i32 %z.0, %z.1
%z.2 = extractelement <8 x i32> %z, i32 2
%add.1 = add i32 %add.0, %z.2
%z.3 = extractelement <8 x i32> %z, i32 3
%add.2 = add i32 %add.1, %z.3
%z.4 = extractelement <8 x i32> %z, i32 4
%add.3 = add i32 %add.2, %z.4
store i8 0, i8* %y
%r = extractelement <4 x i32> %lv, i32 2
%add.4 = add i32 %add.3, %r
ret i32 %add.4
}
define i32 @load_extract_clobber_store_after_limit(<4 x i32>* %x, i8* %y, <8 x i32> %z) {
; LIMIT-DEFAULT-LABEL: @load_extract_clobber_store_after_limit(
; LIMIT-DEFAULT-NEXT: [[Z_0:%.*]] = extractelement <8 x i32> [[Z:%.*]], i32 0
; LIMIT-DEFAULT-NEXT: [[Z_1:%.*]] = extractelement <8 x i32> [[Z]], i32 1
; LIMIT-DEFAULT-NEXT: [[ADD_0:%.*]] = add i32 [[Z_0]], [[Z_1]]
; LIMIT-DEFAULT-NEXT: [[Z_2:%.*]] = extractelement <8 x i32> [[Z]], i32 2
; LIMIT-DEFAULT-NEXT: [[ADD_1:%.*]] = add i32 [[ADD_0]], [[Z_2]]
; LIMIT-DEFAULT-NEXT: [[Z_3:%.*]] = extractelement <8 x i32> [[Z]], i32 3
; LIMIT-DEFAULT-NEXT: [[ADD_2:%.*]] = add i32 [[ADD_1]], [[Z_3]]
; LIMIT-DEFAULT-NEXT: [[Z_4:%.*]] = extractelement <8 x i32> [[Z]], i32 4
; LIMIT-DEFAULT-NEXT: [[ADD_3:%.*]] = add i32 [[ADD_2]], [[Z_4]]
; LIMIT-DEFAULT-NEXT: [[TMP1:%.*]] = getelementptr inbounds <4 x i32>, <4 x i32>* [[X:%.*]], i32 0, i32 2
; LIMIT-DEFAULT-NEXT: [[R:%.*]] = load i32, i32* [[TMP1]], align 8
; LIMIT-DEFAULT-NEXT: store i8 0, i8* [[Y:%.*]], align 1
; LIMIT-DEFAULT-NEXT: [[ADD_4:%.*]] = add i32 [[ADD_3]], [[R]]
; LIMIT-DEFAULT-NEXT: ret i32 [[ADD_4]]
;
; LIMIT2-LABEL: @load_extract_clobber_store_after_limit(
; LIMIT2-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; LIMIT2-NEXT: [[Z_0:%.*]] = extractelement <8 x i32> [[Z:%.*]], i32 0
; LIMIT2-NEXT: [[Z_1:%.*]] = extractelement <8 x i32> [[Z]], i32 1
; LIMIT2-NEXT: [[ADD_0:%.*]] = add i32 [[Z_0]], [[Z_1]]
; LIMIT2-NEXT: [[Z_2:%.*]] = extractelement <8 x i32> [[Z]], i32 2
; LIMIT2-NEXT: [[ADD_1:%.*]] = add i32 [[ADD_0]], [[Z_2]]
; LIMIT2-NEXT: [[Z_3:%.*]] = extractelement <8 x i32> [[Z]], i32 3
; LIMIT2-NEXT: [[ADD_2:%.*]] = add i32 [[ADD_1]], [[Z_3]]
; LIMIT2-NEXT: [[Z_4:%.*]] = extractelement <8 x i32> [[Z]], i32 4
; LIMIT2-NEXT: [[ADD_3:%.*]] = add i32 [[ADD_2]], [[Z_4]]
; LIMIT2-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 2
; LIMIT2-NEXT: store i8 0, i8* [[Y:%.*]], align 1
; LIMIT2-NEXT: [[ADD_4:%.*]] = add i32 [[ADD_3]], [[R]]
; LIMIT2-NEXT: ret i32 [[ADD_4]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%z.0 = extractelement <8 x i32> %z, i32 0
%z.1 = extractelement <8 x i32> %z, i32 1
%add.0 = add i32 %z.0, %z.1
%z.2 = extractelement <8 x i32> %z, i32 2
%add.1 = add i32 %add.0, %z.2
%z.3 = extractelement <8 x i32> %z, i32 3
%add.2 = add i32 %add.1, %z.3
%z.4 = extractelement <8 x i32> %z, i32 4
%add.3 = add i32 %add.2, %z.4
%r = extractelement <4 x i32> %lv, i32 2
store i8 0, i8* %y
%add.4 = add i32 %add.3, %r
ret i32 %add.4
}
declare void @use.v4i32(<4 x i32>)
define i32 @load_extract_idx_different_bbs(<4 x i32>* %x, i1 %c) {
; CHECK-LABEL: @load_extract_idx_different_bbs(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: br i1 [[C:%.*]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK: then:
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i32> [[LV]], i32 1
; CHECK-NEXT: ret i32 [[R]]
; CHECK: else:
; CHECK-NEXT: call void @use.v4i32(<4 x i32> [[LV]])
; CHECK-NEXT: ret i32 20
;
%lv = load <4 x i32>, <4 x i32>* %x
br i1 %c, label %then, label %else
then:
%r = extractelement <4 x i32> %lv, i32 1
ret i32 %r
else:
call void @use.v4i32(<4 x i32> %lv)
ret i32 20
}
define i31 @load_with_non_power_of_2_element_type(<4 x i31>* %x) {
; CHECK-LABEL: @load_with_non_power_of_2_element_type(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i31>, <4 x i31>* [[X:%.*]], align 16
; CHECK-NEXT: [[R:%.*]] = extractelement <4 x i31> [[LV]], i32 1
; CHECK-NEXT: ret i31 [[R]]
;
%lv = load <4 x i31>, <4 x i31>* %x
%r = extractelement <4 x i31> %lv, i32 1
ret i31 %r
}
; Scalarizing the load for multiple constant indices may not be profitable.
define i32 @load_multiple_extracts_with_constant_idx(<4 x i32>* %x) {
; CHECK-LABEL: @load_multiple_extracts_with_constant_idx(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[SHIFT:%.*]] = shufflevector <4 x i32> [[LV]], <4 x i32> poison, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
; CHECK-NEXT: [[TMP1:%.*]] = add <4 x i32> [[LV]], [[SHIFT]]
; CHECK-NEXT: [[RES:%.*]] = extractelement <4 x i32> [[TMP1]], i32 0
; CHECK-NEXT: ret i32 [[RES]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%e.0 = extractelement <4 x i32> %lv, i32 0
%e.1 = extractelement <4 x i32> %lv, i32 1
%res = add i32 %e.0, %e.1
ret i32 %res
}
; Scalarizing the load for multiple extracts is profitable in this case,
; because the vector large vector requires 2 vector registers.
define i32 @load_multiple_extracts_with_constant_idx_profitable(<8 x i32>* %x) {
; CHECK-LABEL: @load_multiple_extracts_with_constant_idx_profitable(
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <8 x i32>, <8 x i32>* [[X:%.*]], i32 0, i32 0
; CHECK-NEXT: [[E_0:%.*]] = load i32, i32* [[TMP1]], align 16
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds <8 x i32>, <8 x i32>* [[X]], i32 0, i32 6
; CHECK-NEXT: [[E_1:%.*]] = load i32, i32* [[TMP2]], align 8
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%lv = load <8 x i32>, <8 x i32>* %x, align 16
%e.0 = extractelement <8 x i32> %lv, i32 0
%e.1 = extractelement <8 x i32> %lv, i32 6
%res = add i32 %e.0, %e.1
ret i32 %res
}
; Scalarizing may or may not be profitable, depending on the target.
define i32 @load_multiple_2_with_variable_indices(<4 x i32>* %x, i64 %idx.0, i64 %idx.1) {
; CHECK-LABEL: @load_multiple_2_with_variable_indices(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[E_0:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_0:%.*]]
; CHECK-NEXT: [[E_1:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_1:%.*]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%e.0 = extractelement <4 x i32> %lv, i64 %idx.0
%e.1 = extractelement <4 x i32> %lv, i64 %idx.1
%res = add i32 %e.0, %e.1
ret i32 %res
}
define i32 @load_4_extracts_with_variable_indices_short_vector(<4 x i32>* %x, i64 %idx.0, i64 %idx.1, i64 %idx.2, i64 %idx.3) {
; CHECK-LABEL: @load_4_extracts_with_variable_indices_short_vector(
; CHECK-NEXT: [[LV:%.*]] = load <4 x i32>, <4 x i32>* [[X:%.*]], align 16
; CHECK-NEXT: [[E_0:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_0:%.*]]
; CHECK-NEXT: [[E_1:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_1:%.*]]
; CHECK-NEXT: [[E_2:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_2:%.*]]
; CHECK-NEXT: [[E_3:%.*]] = extractelement <4 x i32> [[LV]], i64 [[IDX_3:%.*]]
; CHECK-NEXT: [[RES_0:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: [[RES_1:%.*]] = add i32 [[RES_0]], [[E_2]]
; CHECK-NEXT: [[RES_2:%.*]] = add i32 [[RES_1]], [[E_3]]
; CHECK-NEXT: ret i32 [[RES_2]]
;
%lv = load <4 x i32>, <4 x i32>* %x
%e.0 = extractelement <4 x i32> %lv, i64 %idx.0
%e.1 = extractelement <4 x i32> %lv, i64 %idx.1
%e.2 = extractelement <4 x i32> %lv, i64 %idx.2
%e.3 = extractelement <4 x i32> %lv, i64 %idx.3
%res.0 = add i32 %e.0, %e.1
%res.1 = add i32 %res.0, %e.2
%res.2 = add i32 %res.1, %e.3
ret i32 %res.2
}
define i32 @load_multiple_extracts_with_variable_indices_large_vector_only_first_valid(<16 x i32>* %x, i64 %idx.0, i64 %idx.1) {
; CHECK-LABEL: @load_multiple_extracts_with_variable_indices_large_vector_only_first_valid(
; CHECK-NEXT: [[CMP_IDX_0:%.*]] = icmp ult i64 [[IDX_0:%.*]], 16
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP_IDX_0]])
; CHECK-NEXT: [[LV:%.*]] = load <16 x i32>, <16 x i32>* [[X:%.*]], align 64
; CHECK-NEXT: [[E_0:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_0]]
; CHECK-NEXT: [[E_1:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_1:%.*]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%cmp.idx.0 = icmp ult i64 %idx.0, 16
call void @llvm.assume(i1 %cmp.idx.0)
%lv = load <16 x i32>, <16 x i32>* %x
%e.0 = extractelement <16 x i32> %lv, i64 %idx.0
%e.1 = extractelement <16 x i32> %lv, i64 %idx.1
%res = add i32 %e.0, %e.1
ret i32 %res
}
define i32 @load_multiple_extracts_with_variable_indices_large_vector_only_all_valid(<16 x i32>* %x, i64 %idx.0, i64 %idx.1) {
; CHECK-LABEL: @load_multiple_extracts_with_variable_indices_large_vector_only_all_valid(
; CHECK-NEXT: [[CMP_IDX_0:%.*]] = icmp ult i64 [[IDX_0:%.*]], 16
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP_IDX_0]])
; CHECK-NEXT: [[CMP_IDX_1:%.*]] = icmp ult i64 [[IDX_1:%.*]], 16
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP_IDX_1]])
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds <16 x i32>, <16 x i32>* [[X:%.*]], i32 0, i64 [[IDX_0]]
; CHECK-NEXT: [[E_0:%.*]] = load i32, i32* [[TMP1]], align 4
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds <16 x i32>, <16 x i32>* [[X]], i32 0, i64 [[IDX_1]]
; CHECK-NEXT: [[E_1:%.*]] = load i32, i32* [[TMP2]], align 4
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%cmp.idx.0 = icmp ult i64 %idx.0, 16
call void @llvm.assume(i1 %cmp.idx.0)
%cmp.idx.1 = icmp ult i64 %idx.1, 16
call void @llvm.assume(i1 %cmp.idx.1)
%lv = load <16 x i32>, <16 x i32>* %x
%e.0 = extractelement <16 x i32> %lv, i64 %idx.0
%e.1 = extractelement <16 x i32> %lv, i64 %idx.1
%res = add i32 %e.0, %e.1
ret i32 %res
}
define i32 @load_multiple_extracts_with_variable_indices_large_vector_only_first_valid_by_and(<16 x i32>* %x, i64 %idx.0, i64 %idx.1) {
; CHECK-LABEL: @load_multiple_extracts_with_variable_indices_large_vector_only_first_valid_by_and(
; CHECK-NEXT: [[IDX_0_CLAMPED:%.*]] = and i64 [[IDX_0:%.*]], 15
; CHECK-NEXT: [[LV:%.*]] = load <16 x i32>, <16 x i32>* [[X:%.*]], align 64
; CHECK-NEXT: [[E_0:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_0_CLAMPED]]
; CHECK-NEXT: [[E_1:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_1:%.*]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%idx.0.clamped = and i64 %idx.0, 15
%lv = load <16 x i32>, <16 x i32>* %x
%e.0 = extractelement <16 x i32> %lv, i64 %idx.0.clamped
%e.1 = extractelement <16 x i32> %lv, i64 %idx.1
%res = add i32 %e.0, %e.1
ret i32 %res
}
define i32 @load_multiple_extracts_with_variable_indices_large_vector_all_valid_by_and(<16 x i32>* %x, i64 %idx.0, i64 %idx.1) {
; CHECK-LABEL: @load_multiple_extracts_with_variable_indices_large_vector_all_valid_by_and(
; CHECK-NEXT: [[IDX_0_CLAMPED:%.*]] = and i64 [[IDX_0:%.*]], 15
; CHECK-NEXT: [[IDX_1_CLAMPED:%.*]] = and i64 [[IDX_1:%.*]], 15
; CHECK-NEXT: [[LV:%.*]] = load <16 x i32>, <16 x i32>* [[X:%.*]], align 64
; CHECK-NEXT: [[E_0:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_0_CLAMPED]]
; CHECK-NEXT: [[E_1:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_1_CLAMPED]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%idx.0.clamped = and i64 %idx.0, 15
%idx.1.clamped = and i64 %idx.1, 15
%lv = load <16 x i32>, <16 x i32>* %x
%e.0 = extractelement <16 x i32> %lv, i64 %idx.0.clamped
%e.1 = extractelement <16 x i32> %lv, i64 %idx.1.clamped
%res = add i32 %e.0, %e.1
ret i32 %res
}
define i32 @load_multiple_extracts_with_variable_indices_large_vector_all_valid_by_and_some_noundef(<16 x i32>* %x, i64 %idx.0, i64 noundef %idx.1) {
; CHECK-LABEL: @load_multiple_extracts_with_variable_indices_large_vector_all_valid_by_and_some_noundef(
; CHECK-NEXT: [[IDX_0_CLAMPED:%.*]] = and i64 [[IDX_0:%.*]], 15
; CHECK-NEXT: [[IDX_1_CLAMPED:%.*]] = and i64 [[IDX_1:%.*]], 15
; CHECK-NEXT: [[LV:%.*]] = load <16 x i32>, <16 x i32>* [[X:%.*]], align 64
; CHECK-NEXT: [[E_0:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_0_CLAMPED]]
; CHECK-NEXT: [[E_1:%.*]] = extractelement <16 x i32> [[LV]], i64 [[IDX_1_CLAMPED]]
; CHECK-NEXT: [[RES:%.*]] = add i32 [[E_0]], [[E_1]]
; CHECK-NEXT: ret i32 [[RES]]
;
%idx.0.clamped = and i64 %idx.0, 15
%idx.1.clamped = and i64 %idx.1, 15
%lv = load <16 x i32>, <16 x i32>* %x
%e.0 = extractelement <16 x i32> %lv, i64 %idx.0.clamped
%e.1 = extractelement <16 x i32> %lv, i64 %idx.1.clamped
%res = add i32 %e.0, %e.1
ret i32 %res
}
; Test case from PR51992.
define i8 @load_extract_safe_due_to_branch_on_poison(<8 x i8> %in, <16 x i8>* %src) {
; CHECK-LABEL: @load_extract_safe_due_to_branch_on_poison(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[EXT_IDX:%.*]] = extractelement <8 x i8> [[IN:%.*]], i32 0
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[EXT_IDX]], 99
; CHECK-NEXT: br i1 [[CMP]], label [[THEN:%.*]], label [[EXIT:%.*]]
; CHECK: then:
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret i8 0
;
entry:
%ext.idx = extractelement <8 x i8> %in, i32 0
%ext.idx.i32 = zext i8 %ext.idx to i32
%cmp = icmp ult i8 %ext.idx, 99
br i1 %cmp, label %then, label %exit
then:
%load = load <16 x i8>, <16 x i8>* %src, align 16
%and = and i32 %ext.idx.i32, 15
%ext = extractelement <16 x i8> %load, i32 %and
br label %exit
exit:
%p = phi i8 [ 0, %entry ], [ %ext, %then ]
ret i8 0
}