You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
420 lines
12 KiB
420 lines
12 KiB
; RUN: llc < %s -asm-verbose=false | FileCheck %s
|
|
|
|
; Test constant load and store address offsets.
|
|
|
|
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
|
|
target triple = "wasm32-unknown-unknown"
|
|
|
|
; With an nuw add, we can fold an offset.
|
|
|
|
; CHECK-LABEL: load_i32_with_folded_offset:
|
|
; CHECK: i32.load $push0=, 24($0){{$}}
|
|
define i32 @load_i32_with_folded_offset(i32* %p) {
|
|
%q = ptrtoint i32* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i32*
|
|
%t = load i32, i32* %s
|
|
ret i32 %t
|
|
}
|
|
|
|
; With an inbounds gep, we can fold an offset.
|
|
|
|
; CHECK-LABEL: load_i32_with_folded_gep_offset:
|
|
; CHECK: i32.load $push0=, 24($0){{$}}
|
|
define i32 @load_i32_with_folded_gep_offset(i32* %p) {
|
|
%s = getelementptr inbounds i32, i32* %p, i32 6
|
|
%t = load i32, i32* %s
|
|
ret i32 %t
|
|
}
|
|
|
|
; We can't fold a negative offset though, even with an inbounds gep.
|
|
|
|
; CHECK-LABEL: load_i32_with_unfolded_gep_negative_offset:
|
|
; CHECK: i32.const $push0=, -24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i32.load $push2=, 0($pop1){{$}}
|
|
define i32 @load_i32_with_unfolded_gep_negative_offset(i32* %p) {
|
|
%s = getelementptr inbounds i32, i32* %p, i32 -6
|
|
%t = load i32, i32* %s
|
|
ret i32 %t
|
|
}
|
|
|
|
; Without nuw, and even with nsw, we can't fold an offset.
|
|
|
|
; CHECK-LABEL: load_i32_with_unfolded_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i32.load $push2=, 0($pop1){{$}}
|
|
define i32 @load_i32_with_unfolded_offset(i32* %p) {
|
|
%q = ptrtoint i32* %p to i32
|
|
%r = add nsw i32 %q, 24
|
|
%s = inttoptr i32 %r to i32*
|
|
%t = load i32, i32* %s
|
|
ret i32 %t
|
|
}
|
|
|
|
; Without inbounds, we can't fold a gep offset.
|
|
|
|
; CHECK-LABEL: load_i32_with_unfolded_gep_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i32.load $push2=, 0($pop1){{$}}
|
|
define i32 @load_i32_with_unfolded_gep_offset(i32* %p) {
|
|
%s = getelementptr i32, i32* %p, i32 6
|
|
%t = load i32, i32* %s
|
|
ret i32 %t
|
|
}
|
|
|
|
; Same as above but with i64.
|
|
|
|
; CHECK-LABEL: load_i64_with_folded_offset:
|
|
; CHECK: i64.load $push0=, 24($0){{$}}
|
|
define i64 @load_i64_with_folded_offset(i64* %p) {
|
|
%q = ptrtoint i64* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i64*
|
|
%t = load i64, i64* %s
|
|
ret i64 %t
|
|
}
|
|
|
|
; Same as above but with i64.
|
|
|
|
; CHECK-LABEL: load_i64_with_folded_gep_offset:
|
|
; CHECK: i64.load $push0=, 24($0){{$}}
|
|
define i64 @load_i64_with_folded_gep_offset(i64* %p) {
|
|
%s = getelementptr inbounds i64, i64* %p, i32 3
|
|
%t = load i64, i64* %s
|
|
ret i64 %t
|
|
}
|
|
|
|
; Same as above but with i64.
|
|
|
|
; CHECK-LABEL: load_i64_with_unfolded_gep_negative_offset:
|
|
; CHECK: i32.const $push0=, -24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i64.load $push2=, 0($pop1){{$}}
|
|
define i64 @load_i64_with_unfolded_gep_negative_offset(i64* %p) {
|
|
%s = getelementptr inbounds i64, i64* %p, i32 -3
|
|
%t = load i64, i64* %s
|
|
ret i64 %t
|
|
}
|
|
|
|
; Same as above but with i64.
|
|
|
|
; CHECK-LABEL: load_i64_with_unfolded_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i64.load $push2=, 0($pop1){{$}}
|
|
define i64 @load_i64_with_unfolded_offset(i64* %p) {
|
|
%q = ptrtoint i64* %p to i32
|
|
%r = add nsw i32 %q, 24
|
|
%s = inttoptr i32 %r to i64*
|
|
%t = load i64, i64* %s
|
|
ret i64 %t
|
|
}
|
|
|
|
; Same as above but with i64.
|
|
|
|
; CHECK-LABEL: load_i64_with_unfolded_gep_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i64.load $push2=, 0($pop1){{$}}
|
|
define i64 @load_i64_with_unfolded_gep_offset(i64* %p) {
|
|
%s = getelementptr i64, i64* %p, i32 3
|
|
%t = load i64, i64* %s
|
|
ret i64 %t
|
|
}
|
|
|
|
; CHECK-LABEL: load_i32_with_folded_or_offset:
|
|
; CHECK: i32.load8_s $push{{[0-9]+}}=, 2($pop{{[0-9]+}}){{$}}
|
|
define i32 @load_i32_with_folded_or_offset(i32 %x) {
|
|
%and = and i32 %x, -4
|
|
%t0 = inttoptr i32 %and to i8*
|
|
%arrayidx = getelementptr inbounds i8, i8* %t0, i32 2
|
|
%t1 = load i8, i8* %arrayidx, align 1
|
|
%conv = sext i8 %t1 to i32
|
|
ret i32 %conv
|
|
}
|
|
|
|
; Same as above but with store.
|
|
|
|
; CHECK-LABEL: store_i32_with_folded_offset:
|
|
; CHECK: i32.store $drop=, 24($0), $pop0{{$}}
|
|
define void @store_i32_with_folded_offset(i32* %p) {
|
|
%q = ptrtoint i32* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i32*
|
|
store i32 0, i32* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store.
|
|
|
|
; CHECK-LABEL: store_i32_with_folded_gep_offset:
|
|
; CHECK: i32.store $drop=, 24($0), $pop0{{$}}
|
|
define void @store_i32_with_folded_gep_offset(i32* %p) {
|
|
%s = getelementptr inbounds i32, i32* %p, i32 6
|
|
store i32 0, i32* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store.
|
|
|
|
; CHECK-LABEL: store_i32_with_unfolded_gep_negative_offset:
|
|
; CHECK: i32.const $push0=, -24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i32.store $drop=, 0($pop1), $pop2{{$}}
|
|
define void @store_i32_with_unfolded_gep_negative_offset(i32* %p) {
|
|
%s = getelementptr inbounds i32, i32* %p, i32 -6
|
|
store i32 0, i32* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store.
|
|
|
|
; CHECK-LABEL: store_i32_with_unfolded_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i32.store $drop=, 0($pop1), $pop2{{$}}
|
|
define void @store_i32_with_unfolded_offset(i32* %p) {
|
|
%q = ptrtoint i32* %p to i32
|
|
%r = add nsw i32 %q, 24
|
|
%s = inttoptr i32 %r to i32*
|
|
store i32 0, i32* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store.
|
|
|
|
; CHECK-LABEL: store_i32_with_unfolded_gep_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i32.store $drop=, 0($pop1), $pop2{{$}}
|
|
define void @store_i32_with_unfolded_gep_offset(i32* %p) {
|
|
%s = getelementptr i32, i32* %p, i32 6
|
|
store i32 0, i32* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store with i64.
|
|
|
|
; CHECK-LABEL: store_i64_with_folded_offset:
|
|
; CHECK: i64.store $drop=, 24($0), $pop0{{$}}
|
|
define void @store_i64_with_folded_offset(i64* %p) {
|
|
%q = ptrtoint i64* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i64*
|
|
store i64 0, i64* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store with i64.
|
|
|
|
; CHECK-LABEL: store_i64_with_folded_gep_offset:
|
|
; CHECK: i64.store $drop=, 24($0), $pop0{{$}}
|
|
define void @store_i64_with_folded_gep_offset(i64* %p) {
|
|
%s = getelementptr inbounds i64, i64* %p, i32 3
|
|
store i64 0, i64* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store with i64.
|
|
|
|
; CHECK-LABEL: store_i64_with_unfolded_gep_negative_offset:
|
|
; CHECK: i32.const $push0=, -24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i64.store $drop=, 0($pop1), $pop2{{$}}
|
|
define void @store_i64_with_unfolded_gep_negative_offset(i64* %p) {
|
|
%s = getelementptr inbounds i64, i64* %p, i32 -3
|
|
store i64 0, i64* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store with i64.
|
|
|
|
; CHECK-LABEL: store_i64_with_unfolded_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i64.store $drop=, 0($pop1), $pop2{{$}}
|
|
define void @store_i64_with_unfolded_offset(i64* %p) {
|
|
%q = ptrtoint i64* %p to i32
|
|
%r = add nsw i32 %q, 24
|
|
%s = inttoptr i32 %r to i64*
|
|
store i64 0, i64* %s
|
|
ret void
|
|
}
|
|
|
|
; Same as above but with store with i64.
|
|
|
|
; CHECK-LABEL: store_i64_with_unfolded_gep_offset:
|
|
; CHECK: i32.const $push0=, 24{{$}}
|
|
; CHECK: i32.add $push1=, $0, $pop0{{$}}
|
|
; CHECK: i64.store $drop=, 0($pop1), $pop2{{$}}
|
|
define void @store_i64_with_unfolded_gep_offset(i64* %p) {
|
|
%s = getelementptr i64, i64* %p, i32 3
|
|
store i64 0, i64* %s
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: store_i32_with_folded_or_offset:
|
|
; CHECK: i32.store8 $drop=, 2($pop{{[0-9]+}}), $pop{{[0-9]+}}{{$}}
|
|
define void @store_i32_with_folded_or_offset(i32 %x) {
|
|
%and = and i32 %x, -4
|
|
%t0 = inttoptr i32 %and to i8*
|
|
%arrayidx = getelementptr inbounds i8, i8* %t0, i32 2
|
|
store i8 0, i8* %arrayidx, align 1
|
|
ret void
|
|
}
|
|
|
|
; When loading from a fixed address, materialize a zero.
|
|
|
|
; CHECK-LABEL: load_i32_from_numeric_address
|
|
; CHECK: i32.const $push0=, 0{{$}}
|
|
; CHECK: i32.load $push1=, 42($pop0){{$}}
|
|
define i32 @load_i32_from_numeric_address() {
|
|
%s = inttoptr i32 42 to i32*
|
|
%t = load i32, i32* %s
|
|
ret i32 %t
|
|
}
|
|
|
|
; CHECK-LABEL: load_i32_from_global_address
|
|
; CHECK: i32.const $push0=, 0{{$}}
|
|
; CHECK: i32.load $push1=, gv($pop0){{$}}
|
|
@gv = global i32 0
|
|
define i32 @load_i32_from_global_address() {
|
|
%t = load i32, i32* @gv
|
|
ret i32 %t
|
|
}
|
|
|
|
; CHECK-LABEL: store_i32_to_numeric_address:
|
|
; CHECK-NEXT: i32.const $push0=, 0{{$}}
|
|
; CHECK-NEXT: i32.const $push1=, 0{{$}}
|
|
; CHECK-NEXT: i32.store $drop=, 42($pop0), $pop1{{$}}
|
|
define void @store_i32_to_numeric_address() {
|
|
%s = inttoptr i32 42 to i32*
|
|
store i32 0, i32* %s
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: store_i32_to_global_address:
|
|
; CHECK: i32.const $push0=, 0{{$}}
|
|
; CHECK: i32.const $push1=, 0{{$}}
|
|
; CHECK: i32.store $drop=, gv($pop0), $pop1{{$}}
|
|
define void @store_i32_to_global_address() {
|
|
store i32 0, i32* @gv
|
|
ret void
|
|
}
|
|
|
|
; Fold an offset into a sign-extending load.
|
|
|
|
; CHECK-LABEL: load_i8_s_with_folded_offset:
|
|
; CHECK: i32.load8_s $push0=, 24($0){{$}}
|
|
define i32 @load_i8_s_with_folded_offset(i8* %p) {
|
|
%q = ptrtoint i8* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i8*
|
|
%t = load i8, i8* %s
|
|
%u = sext i8 %t to i32
|
|
ret i32 %u
|
|
}
|
|
|
|
; Fold a gep offset into a sign-extending load.
|
|
|
|
; CHECK-LABEL: load_i8_s_with_folded_gep_offset:
|
|
; CHECK: i32.load8_s $push0=, 24($0){{$}}
|
|
define i32 @load_i8_s_with_folded_gep_offset(i8* %p) {
|
|
%s = getelementptr inbounds i8, i8* %p, i32 24
|
|
%t = load i8, i8* %s
|
|
%u = sext i8 %t to i32
|
|
ret i32 %u
|
|
}
|
|
|
|
; Fold an offset into a zero-extending load.
|
|
|
|
; CHECK-LABEL: load_i8_u_with_folded_offset:
|
|
; CHECK: i32.load8_u $push0=, 24($0){{$}}
|
|
define i32 @load_i8_u_with_folded_offset(i8* %p) {
|
|
%q = ptrtoint i8* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i8*
|
|
%t = load i8, i8* %s
|
|
%u = zext i8 %t to i32
|
|
ret i32 %u
|
|
}
|
|
|
|
; Fold a gep offset into a zero-extending load.
|
|
|
|
; CHECK-LABEL: load_i8_u_with_folded_gep_offset:
|
|
; CHECK: i32.load8_u $push0=, 24($0){{$}}
|
|
define i32 @load_i8_u_with_folded_gep_offset(i8* %p) {
|
|
%s = getelementptr inbounds i8, i8* %p, i32 24
|
|
%t = load i8, i8* %s
|
|
%u = zext i8 %t to i32
|
|
ret i32 %u
|
|
}
|
|
|
|
; Fold an offset into a truncating store.
|
|
|
|
; CHECK-LABEL: store_i8_with_folded_offset:
|
|
; CHECK: i32.store8 $drop=, 24($0), $pop0{{$}}
|
|
define void @store_i8_with_folded_offset(i8* %p) {
|
|
%q = ptrtoint i8* %p to i32
|
|
%r = add nuw i32 %q, 24
|
|
%s = inttoptr i32 %r to i8*
|
|
store i8 0, i8* %s
|
|
ret void
|
|
}
|
|
|
|
; Fold a gep offset into a truncating store.
|
|
|
|
; CHECK-LABEL: store_i8_with_folded_gep_offset:
|
|
; CHECK: i32.store8 $drop=, 24($0), $pop0{{$}}
|
|
define void @store_i8_with_folded_gep_offset(i8* %p) {
|
|
%s = getelementptr inbounds i8, i8* %p, i32 24
|
|
store i8 0, i8* %s
|
|
ret void
|
|
}
|
|
|
|
; Fold the offsets when lowering aggregate loads and stores.
|
|
|
|
; CHECK-LABEL: aggregate_load_store:
|
|
; CHECK: i32.load $2=, 0($0){{$}}
|
|
; CHECK: i32.load $3=, 4($0){{$}}
|
|
; CHECK: i32.load $4=, 8($0){{$}}
|
|
; CHECK: i32.load $push0=, 12($0){{$}}
|
|
; CHECK: i32.store $drop=, 12($1), $pop0{{$}}
|
|
; CHECK: i32.store $drop=, 8($1), $4{{$}}
|
|
; CHECK: i32.store $drop=, 4($1), $3{{$}}
|
|
; CHECK: i32.store $drop=, 0($1), $2{{$}}
|
|
define void @aggregate_load_store({i32,i32,i32,i32}* %p, {i32,i32,i32,i32}* %q) {
|
|
; volatile so that things stay in order for the tests above
|
|
%t = load volatile {i32,i32,i32,i32}, {i32, i32,i32,i32}* %p
|
|
store volatile {i32,i32,i32,i32} %t, {i32, i32,i32,i32}* %q
|
|
ret void
|
|
}
|
|
|
|
; Fold the offsets when lowering aggregate return values. The stores get
|
|
; merged into i64 stores.
|
|
|
|
; CHECK-LABEL: aggregate_return:
|
|
; CHECK: i64.const $push[[L0:[0-9]+]]=, 0{{$}}
|
|
; CHECK: i64.store $push[[L1:[0-9]+]]=, 8($0):p2align=2, $pop[[L0]]{{$}}
|
|
; CHECK: i64.store $drop=, 0($0):p2align=2, $pop[[L1]]{{$}}
|
|
define {i32,i32,i32,i32} @aggregate_return() {
|
|
ret {i32,i32,i32,i32} zeroinitializer
|
|
}
|
|
|
|
; Fold the offsets when lowering aggregate return values. The stores are not
|
|
; merged.
|
|
|
|
; CHECK-LABEL: aggregate_return_without_merge:
|
|
; CHECK: i32.const $push[[L0:[0-9]+]]=, 0{{$}}
|
|
; CHECK: i32.store8 $push[[L1:[0-9]+]]=, 14($0), $pop[[L0]]{{$}}
|
|
; CHECK: i32.store16 $push[[L2:[0-9]+]]=, 12($0), $pop[[L1]]{{$}}
|
|
; CHECK: i32.store $drop=, 8($0), $pop[[L2]]{{$}}
|
|
; CHECK: i64.const $push[[L3:[0-9]+]]=, 0{{$}}
|
|
; CHECK: i64.store $drop=, 0($0), $pop[[L3]]{{$}}
|
|
define {i64,i32,i16,i8} @aggregate_return_without_merge() {
|
|
ret {i64,i32,i16,i8} zeroinitializer
|
|
}
|