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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=slsr,gvn -S | FileCheck %s
; RUN: opt < %s -passes='slsr,gvn' -S | FileCheck %s
target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"
define void @shl(i32 %b, i32 %s) {
; CHECK-LABEL: @shl(
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B:%.*]], [[S:%.*]]
; CHECK-NEXT: call void @foo(i32 [[T1]])
; CHECK-NEXT: [[T2:%.*]] = add i32 [[T1]], [[S]]
; CHECK-NEXT: call void @foo(i32 [[T2]])
; CHECK-NEXT: ret void
;
%t1 = add i32 %b, %s
call void @foo(i32 %t1)
%s2 = shl i32 %s, 1
%t2 = add i32 %b, %s2
call void @foo(i32 %t2)
ret void
}
define void @stride_is_2s(i32 %b, i32 %s) {
; CHECK-LABEL: @stride_is_2s(
; CHECK-NEXT: [[S2:%.*]] = shl i32 [[S:%.*]], 1
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B:%.*]], [[S2]]
; CHECK-NEXT: call void @foo(i32 [[T1]])
; CHECK-NEXT: [[T2:%.*]] = add i32 [[T1]], [[S2]]
; CHECK-NEXT: call void @foo(i32 [[T2]])
; CHECK-NEXT: [[T3:%.*]] = add i32 [[T2]], [[S2]]
; CHECK-NEXT: call void @foo(i32 [[T3]])
; CHECK-NEXT: ret void
;
%s2 = shl i32 %s, 1
%t1 = add i32 %b, %s2
call void @foo(i32 %t1)
%s4 = shl i32 %s, 2
%t2 = add i32 %b, %s4
call void @foo(i32 %t2)
%s6 = mul i32 %s, 6
%t3 = add i32 %b, %s6
call void @foo(i32 %t3)
ret void
}
define void @stride_is_3s(i32 %b, i32 %s) {
; CHECK-LABEL: @stride_is_3s(
; CHECK-NEXT: [[T1:%.*]] = add i32 [[S:%.*]], [[B:%.*]]
; CHECK-NEXT: call void @foo(i32 [[T1]])
; CHECK-NEXT: [[TMP1:%.*]] = mul i32 [[S]], 3
; CHECK-NEXT: [[T2:%.*]] = add i32 [[T1]], [[TMP1]]
; CHECK-NEXT: call void @foo(i32 [[T2]])
; CHECK-NEXT: [[T3:%.*]] = add i32 [[T2]], [[TMP1]]
; CHECK-NEXT: call void @foo(i32 [[T3]])
; CHECK-NEXT: ret void
;
%t1 = add i32 %s, %b
call void @foo(i32 %t1)
%s4 = shl i32 %s, 2
%t2 = add i32 %s4, %b
call void @foo(i32 %t2)
%s7 = mul i32 %s, 7
%t3 = add i32 %s7, %b
call void @foo(i32 %t3)
ret void
}
; foo(b + 6 * s);
; foo(b + 4 * s);
; foo(b + 2 * s);
; =>
; t1 = b + 6 * s;
; foo(t1);
; s2 = 2 * s;
; t2 = t1 - s2;
; foo(t2);
; t3 = t2 - s2;
; foo(t3);
define void @stride_is_minus_2s(i32 %b, i32 %s) {
; CHECK-LABEL: @stride_is_minus_2s(
; CHECK-NEXT: [[S6:%.*]] = mul i32 [[S:%.*]], 6
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B:%.*]], [[S6]]
; CHECK-NEXT: call void @foo(i32 [[T1]])
; CHECK-NEXT: [[TMP1:%.*]] = shl i32 [[S]], 1
; CHECK-NEXT: [[T2:%.*]] = sub i32 [[T1]], [[TMP1]]
; CHECK-NEXT: call void @foo(i32 [[T2]])
; CHECK-NEXT: [[T3:%.*]] = sub i32 [[T2]], [[TMP1]]
; CHECK-NEXT: call void @foo(i32 [[T3]])
; CHECK-NEXT: ret void
;
%s6 = mul i32 %s, 6
%t1 = add i32 %b, %s6
call void @foo(i32 %t1)
%s4 = shl i32 %s, 2
%t2 = add i32 %b, %s4
call void @foo(i32 %t2)
%s2 = shl i32 %s, 1
%t3 = add i32 %b, %s2
call void @foo(i32 %t3)
ret void
}
; TODO: This pass is targeted at simple address-calcs, so it is artificially limited to
; match scalar values. The code could be modified to handle vector types too.
define void @stride_is_minus_2s_vec(<2 x i32> %b, <2 x i32> %s) {
; CHECK-LABEL: @stride_is_minus_2s_vec(
; CHECK-NEXT: [[S6:%.*]] = mul <2 x i32> [[S:%.*]], <i32 6, i32 6>
; CHECK-NEXT: [[T1:%.*]] = add <2 x i32> [[B:%.*]], [[S6]]
; CHECK-NEXT: call void @voo(<2 x i32> [[T1]])
; CHECK-NEXT: [[S4:%.*]] = shl <2 x i32> [[S]], <i32 2, i32 2>
; CHECK-NEXT: [[T2:%.*]] = add <2 x i32> [[B]], [[S4]]
; CHECK-NEXT: call void @voo(<2 x i32> [[T2]])
; CHECK-NEXT: [[S2:%.*]] = shl <2 x i32> [[S]], <i32 1, i32 1>
; CHECK-NEXT: [[T3:%.*]] = add <2 x i32> [[B]], [[S2]]
; CHECK-NEXT: call void @voo(<2 x i32> [[T3]])
; CHECK-NEXT: ret void
;
%s6 = mul <2 x i32> %s, <i32 6, i32 6>
%t1 = add <2 x i32> %b, %s6
call void @voo(<2 x i32> %t1)
%s4 = shl <2 x i32> %s, <i32 2, i32 2>
%t2 = add <2 x i32> %b, %s4
call void @voo(<2 x i32> %t2)
%s2 = shl <2 x i32> %s, <i32 1, i32 1>
%t3 = add <2 x i32> %b, %s2
call void @voo(<2 x i32> %t3)
ret void
}
; t = b + (s << 3);
; foo(t);
; foo(b + s);
;
; do not rewrite b + s to t - 7 * s because the latter is more complicated.
define void @simple_enough(i32 %b, i32 %s) {
; CHECK-LABEL: @simple_enough(
; CHECK-NEXT: [[S8:%.*]] = shl i32 [[S:%.*]], 3
; CHECK-NEXT: [[T1:%.*]] = add i32 [[B:%.*]], [[S8]]
; CHECK-NEXT: call void @foo(i32 [[T1]])
; CHECK-NEXT: [[T2:%.*]] = add i32 [[B]], [[S]]
; CHECK-NEXT: call void @foo(i32 [[T2]])
; CHECK-NEXT: ret void
;
%s8 = shl i32 %s, 3
%t1 = add i32 %b, %s8
call void @foo(i32 %t1)
%t2 = add i32 %b, %s
call void @foo(i32 %t2)
ret void
}
define void @slsr_strided_add_128bit(i128 %b, i128 %s) {
; CHECK-LABEL: @slsr_strided_add_128bit(
; CHECK-NEXT: [[S125:%.*]] = shl i128 [[S:%.*]], 125
; CHECK-NEXT: [[T1:%.*]] = add i128 [[B:%.*]], [[S125]]
; CHECK-NEXT: call void @bar(i128 [[T1]])
; CHECK-NEXT: [[T2:%.*]] = add i128 [[T1]], [[S125]]
; CHECK-NEXT: call void @bar(i128 [[T2]])
; CHECK-NEXT: ret void
;
%s125 = shl i128 %s, 125
%s126 = shl i128 %s, 126
%t1 = add i128 %b, %s125
call void @bar(i128 %t1)
%t2 = add i128 %b, %s126
call void @bar(i128 %t2)
ret void
}
declare void @foo(i32)
declare void @voo(<2 x i32>)
declare void @bar(i128)
|
