llvm-project/llvm/test/Transforms/ConstraintElimination/loops.ll

472 lines
16 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -constraint-elimination -S %s | FileCheck %s
declare void @use(i1)
; Make sure conditions in loops are not used to simplify themselves.
define void @loop1(float* %T, float* %x, i32 %points, i32 %trigint) {
; CHECK-LABEL: @loop1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[IDX_EXT:%.*]] = sext i32 [[POINTS:%.*]] to i64
; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds float, float* [[X:%.*]], i64 [[IDX_EXT]]
; CHECK-NEXT: [[ADD_PTR1:%.*]] = getelementptr inbounds float, float* [[ADD_PTR]], i64 -8
; CHECK-NEXT: [[SHR:%.*]] = ashr i32 [[POINTS]], 1
; CHECK-NEXT: [[IDX_EXT2:%.*]] = sext i32 [[SHR]] to i64
; CHECK-NEXT: [[ADD_PTR3:%.*]] = getelementptr inbounds float, float* [[X]], i64 [[IDX_EXT2]]
; CHECK-NEXT: [[ADD_PTR4:%.*]] = getelementptr inbounds float, float* [[ADD_PTR3]], i64 -8
; CHECK-NEXT: br label [[DO_BODY:%.*]]
; CHECK: do.body:
; CHECK-NEXT: [[X2_0:%.*]] = phi float* [ [[ADD_PTR4]], [[ENTRY:%.*]] ], [ [[ADD_PTR106:%.*]], [[DO_BODY]] ]
; CHECK-NEXT: [[X1_0:%.*]] = phi float* [ [[ADD_PTR1]], [[ENTRY]] ], [ [[ADD_PTR105:%.*]], [[DO_BODY]] ]
; CHECK-NEXT: [[ADD_PTR105]] = getelementptr inbounds float, float* [[X1_0]], i64 -8
; CHECK-NEXT: [[ADD_PTR106]] = getelementptr inbounds float, float* [[X2_0]], i64 -8
; CHECK-NEXT: [[CMP:%.*]] = icmp uge float* [[ADD_PTR106]], [[X]]
; CHECK-NEXT: br i1 [[CMP]], label [[DO_BODY]], label [[DO_END:%.*]]
; CHECK: do.end:
; CHECK-NEXT: ret void
;
entry:
%idx.ext = sext i32 %points to i64
%add.ptr = getelementptr inbounds float, float* %x, i64 %idx.ext
%add.ptr1 = getelementptr inbounds float, float* %add.ptr, i64 -8
%shr = ashr i32 %points, 1
%idx.ext2 = sext i32 %shr to i64
%add.ptr3 = getelementptr inbounds float, float* %x, i64 %idx.ext2
%add.ptr4 = getelementptr inbounds float, float* %add.ptr3, i64 -8
br label %do.body
do.body: ; preds = %do.body, %entry
%x2.0 = phi float* [ %add.ptr4, %entry ], [ %add.ptr106, %do.body ]
%x1.0 = phi float* [ %add.ptr1, %entry ], [ %add.ptr105, %do.body ]
%add.ptr105 = getelementptr inbounds float, float* %x1.0, i64 -8
%add.ptr106 = getelementptr inbounds float, float* %x2.0, i64 -8
%cmp = icmp uge float* %add.ptr106, %x
br i1 %cmp, label %do.body, label %do.end
do.end: ; preds = %do.body
ret void
}
; Some tests with loops with conditions in the header.
define i32 @loop_header_dom(i32 %y, i1 %c) {
; CHECK-LABEL: @loop_header_dom(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[X_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: br i1 [[C_1]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK: loop.latch:
; CHECK-NEXT: [[T_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[F_1:%.*]] = icmp ugt i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_2:%.*]] = icmp ule i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: [[C_3:%.*]] = icmp ugt i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[X_NEXT]] = add i32 [[X]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i32 [[Y:%.*]], 10
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: ret i32 20
;
entry:
br i1 %c, label %loop.header, label %exit
loop.header:
%x = phi i32 [ 0, %entry ], [ %x.next, %loop.latch ]
%c.1 = icmp ule i32 %x, 10
br i1 %c.1, label %loop.latch, label %exit
loop.latch:
%t.1 = icmp ule i32 %x, 10
call void @use(i1 %t.1)
%f.1 = icmp ugt i32 %x, 10
call void @use(i1 %f.1)
%c.2 = icmp ule i32 %x, 9
call void @use(i1 %c.2)
%c.3 = icmp ugt i32 %x, 9
call void @use(i1 %c.3)
%x.next = add i32 %x, 1
br label %loop.header
exit:
%c.4 = icmp ugt i32 %y, 10
call void @use(i1 %c.4)
ret i32 20
}
define i32 @loop_header_dom_successors_flipped(i32 %y, i1 %c) {
; CHECK-LABEL: @loop_header_dom_successors_flipped(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[X_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: br i1 [[C_1]], label [[EXIT]], label [[LOOP_LATCH]]
; CHECK: loop.latch:
; CHECK-NEXT: [[F_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i32 [[X]], 11
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: [[C_3:%.*]] = icmp ule i32 [[X]], 11
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[X_NEXT]] = add i32 [[X]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i32 [[Y:%.*]], 10
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: ret i32 20
;
entry:
br i1 %c, label %loop.header, label %exit
loop.header:
%x = phi i32 [ 0, %entry ], [ %x.next, %loop.latch ]
%c.1 = icmp ule i32 %x, 10
br i1 %c.1, label %exit, label %loop.latch
loop.latch:
%f.1 = icmp ule i32 %x, 10
call void @use(i1 %f.1)
%t.1 = icmp ugt i32 %x, 10
call void @use(i1 %t.1)
%c.2 = icmp ugt i32 %x, 11
call void @use(i1 %c.2)
%c.3 = icmp ule i32 %x,11
call void @use(i1 %c.3)
%x.next = add i32 %x, 1
br label %loop.header
exit:
%c.4 = icmp ugt i32 %y, 10
call void @use(i1 %c.4)
ret i32 20
}
define void @loop_header_dom_or(i32 %y, i1 %c) {
; CHECK-LABEL: @loop_header_dom_or(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[X_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[X_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: [[Y_1:%.*]] = icmp ugt i32 [[Y:%.*]], 99
; CHECK-NEXT: [[OR:%.*]] = or i1 [[X_1]], [[Y_1]]
; CHECK-NEXT: br i1 [[OR]], label [[EXIT]], label [[LOOP_LATCH]]
; CHECK: loop.latch:
; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[F_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_1:%.*]] = icmp ugt i32 [[X]], 11
; CHECK-NEXT: call void @use(i1 [[C_1]])
; CHECK-NEXT: [[C_2:%.*]] = icmp ule i32 [[X]], 11
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: [[T_2:%.*]] = icmp ule i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[F_2:%.*]] = icmp ugt i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_3:%.*]] = icmp ule i32 [[Y]], 98
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[C_4:%.*]] = icmp ule i32 [[Y]], 98
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: [[X_NEXT]] = add i32 [[X]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i32 [[Y]], 10
; CHECK-NEXT: call void @use(i1 [[C_5]])
; CHECK-NEXT: ret void
;
entry:
br i1 %c, label %loop.header, label %exit
loop.header:
%x = phi i32 [ 0, %entry ], [ %x.next, %loop.latch ]
%x.1 = icmp ule i32 %x, 10
%y.1 = icmp ugt i32 %y, 99
%or = or i1 %x.1, %y.1
br i1 %or, label %exit, label %loop.latch
loop.latch:
%t.1 = icmp ugt i32 %x, 10
call void @use(i1 %t.1)
%f.1 = icmp ule i32 %x, 10
call void @use(i1 %f.1)
%c.1 = icmp ugt i32 %x, 11
call void @use(i1 %c.1)
%c.2 = icmp ule i32 %x, 11
call void @use(i1 %c.2)
%t.2 = icmp ule i32 %y, 99
call void @use(i1 %t.2)
%f.2 = icmp ugt i32 %y, 99
call void @use(i1 %f.2)
%c.3 = icmp ule i32 %y, 98
call void @use(i1 %c.3)
%c.4 = icmp ule i32 %y, 98
call void @use(i1 %c.4)
%x.next = add i32 %x, 1
br label %loop.header
exit:
%c.5 = icmp ugt i32 %y, 10
call void @use(i1 %c.5)
ret void
}
define void @loop_header_dom_or_successors_flipped(i32 %y, i1 %c) {
; CHECK-LABEL: @loop_header_dom_or_successors_flipped(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: loop.header:
; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[X_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[X_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: [[Y_1:%.*]] = icmp ugt i32 [[Y:%.*]], 99
; CHECK-NEXT: [[OR:%.*]] = or i1 [[X_1]], [[Y_1]]
; CHECK-NEXT: br i1 [[OR]], label [[LOOP_LATCH]], label [[EXIT]]
; CHECK: loop.latch:
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 [[C_1]])
; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: [[C_3:%.*]] = icmp ule i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 [[C_5]])
; CHECK-NEXT: [[C_6:%.*]] = icmp ule i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 [[C_6]])
; CHECK-NEXT: [[C_7:%.*]] = icmp ugt i32 [[Y]], 100
; CHECK-NEXT: call void @use(i1 [[C_7]])
; CHECK-NEXT: [[C_8:%.*]] = icmp ugt i32 [[Y]], 100
; CHECK-NEXT: call void @use(i1 [[C_8]])
; CHECK-NEXT: [[X_NEXT]] = add i32 [[X]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit:
; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i32 [[Y]], 10
; CHECK-NEXT: call void @use(i1 [[T_1]])
; CHECK-NEXT: ret void
;
entry:
br i1 %c, label %loop.header, label %exit
loop.header:
%x = phi i32 [ 0, %entry ], [ %x.next, %loop.latch ]
%x.1 = icmp ule i32 %x, 10
%y.1 = icmp ugt i32 %y, 99
%or = or i1 %x.1, %y.1
br i1 %or, label %loop.latch, label %exit
loop.latch:
%c.1 = icmp ule i32 %x, 10
call void @use(i1 %c.1)
%c.2 = icmp ugt i32 %x, 10
call void @use(i1 %c.2)
%c.3 = icmp ule i32 %x, 9
call void @use(i1 %c.3)
%c.4 = icmp ugt i32 %x, 9
call void @use(i1 %c.4)
%c.5 = icmp ugt i32 %y, 99
call void @use(i1 %c.5)
%c.6 = icmp ule i32 %y, 99
call void @use(i1 %c.6)
%c.7 = icmp ugt i32 %y, 100
call void @use(i1 %c.7)
%c.8 = icmp ugt i32 %y, 100
call void @use(i1 %c.8)
%x.next = add i32 %x, 1
br label %loop.header
exit:
%t.1 = icmp ugt i32 %y, 10
call void @use(i1 %t.1)
ret void
}
define void @loop_header_dom_and(i32 %y, i1 %c) {
; CHECK-LABEL: @loop_header_dom_and(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i32 [[Y:%.*]], 10
; CHECK-NEXT: call void @use(i1 [[C_5]])
; CHECK-NEXT: ret void
; CHECK: loop.header:
; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[X_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[X_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: [[Y_1:%.*]] = icmp ugt i32 [[Y]], 99
; CHECK-NEXT: [[AND:%.*]] = and i1 [[X_1]], [[Y_1]]
; CHECK-NEXT: br i1 [[AND]], label [[LOOP_LATCH]], label [[EXIT_1:%.*]]
; CHECK: loop.latch:
; CHECK-NEXT: [[T_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[F_1:%.*]] = icmp ugt i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_1]])
; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: [[T_2:%.*]] = icmp ugt i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: [[F_2:%.*]] = icmp ule i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 false)
; CHECK-NEXT: [[C_3:%.*]] = icmp ugt i32 [[Y]], 100
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i32 [[Y]], 100
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: [[X_NEXT]] = add i32 [[X]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit.1:
; CHECK-NEXT: [[C_6:%.*]] = icmp ugt i32 [[Y]], 10
; CHECK-NEXT: call void @use(i1 [[C_6]])
; CHECK-NEXT: ret void
;
entry:
br i1 %c, label %loop.header, label %exit
exit:
%c.5 = icmp ugt i32 %y, 10
call void @use(i1 %c.5)
ret void
loop.header:
%x = phi i32 [ 0, %entry ], [ %x.next, %loop.latch ]
%x.1 = icmp ule i32 %x, 10
%y.1 = icmp ugt i32 %y, 99
%and = and i1 %x.1, %y.1
br i1 %and, label %loop.latch, label %exit.1
loop.latch:
%t.1 = icmp ule i32 %x, 10
call void @use(i1 %t.1)
%f.1 = icmp ugt i32 %x, 10
call void @use(i1 %f.1)
%c.1 = icmp ule i32 %x, 9
call void @use(i1 %c.1)
%c.2 = icmp ugt i32 %x, 9
call void @use(i1 %c.2)
%t.2 = icmp ugt i32 %y, 99
call void @use(i1 %t.2)
%f.2 = icmp ule i32 %y, 99
call void @use(i1 %f.2)
%c.3 = icmp ugt i32 %y, 100
call void @use(i1 %c.3)
%c.4 = icmp ugt i32 %y, 100
call void @use(i1 %c.4)
%x.next = add i32 %x, 1
br label %loop.header
exit.1:
%c.6 = icmp ugt i32 %y, 10
call void @use(i1 %c.6)
ret void
}
define void @loop_header_dom_and_successors_flipped(i32 %y, i1 %c) {
; CHECK-LABEL: @loop_header_dom_and_successors_flipped(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[LOOP_HEADER:%.*]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: [[C_9:%.*]] = icmp ugt i32 [[Y:%.*]], 10
; CHECK-NEXT: call void @use(i1 [[C_9]])
; CHECK-NEXT: ret void
; CHECK: loop.header:
; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[X_NEXT:%.*]], [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[X_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: [[Y_1:%.*]] = icmp ugt i32 [[Y]], 99
; CHECK-NEXT: [[AND:%.*]] = and i1 [[X_1]], [[Y_1]]
; CHECK-NEXT: br i1 [[AND]], label [[EXIT_1:%.*]], label [[LOOP_LATCH]]
; CHECK: loop.latch:
; CHECK-NEXT: [[C_1:%.*]] = icmp ule i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 [[C_1]])
; CHECK-NEXT: [[C_2:%.*]] = icmp ugt i32 [[X]], 10
; CHECK-NEXT: call void @use(i1 [[C_2]])
; CHECK-NEXT: [[C_3:%.*]] = icmp ule i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_3]])
; CHECK-NEXT: [[C_4:%.*]] = icmp ugt i32 [[X]], 9
; CHECK-NEXT: call void @use(i1 [[C_4]])
; CHECK-NEXT: [[C_5:%.*]] = icmp ugt i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 [[C_5]])
; CHECK-NEXT: [[C_6:%.*]] = icmp ule i32 [[Y]], 99
; CHECK-NEXT: call void @use(i1 [[C_6]])
; CHECK-NEXT: [[C_7:%.*]] = icmp ugt i32 [[Y]], 100
; CHECK-NEXT: call void @use(i1 [[C_7]])
; CHECK-NEXT: [[C_8:%.*]] = icmp ugt i32 [[Y]], 100
; CHECK-NEXT: call void @use(i1 [[C_8]])
; CHECK-NEXT: [[X_NEXT]] = add i32 [[X]], 1
; CHECK-NEXT: br label [[LOOP_HEADER]]
; CHECK: exit.1:
; CHECK-NEXT: [[T_1:%.*]] = icmp ugt i32 [[Y]], 10
; CHECK-NEXT: call void @use(i1 true)
; CHECK-NEXT: ret void
;
entry:
br i1 %c, label %loop.header, label %exit
exit:
%c.9 = icmp ugt i32 %y, 10
call void @use(i1 %c.9)
ret void
loop.header:
%x = phi i32 [ 0, %entry ], [ %x.next, %loop.latch ]
%x.1 = icmp ule i32 %x, 10
%y.1 = icmp ugt i32 %y, 99
%and = and i1 %x.1, %y.1
br i1 %and, label %exit.1, label %loop.latch
loop.latch:
%c.1 = icmp ule i32 %x, 10
call void @use(i1 %c.1)
%c.2 = icmp ugt i32 %x, 10
call void @use(i1 %c.2)
%c.3 = icmp ule i32 %x, 9
call void @use(i1 %c.3)
%c.4 = icmp ugt i32 %x, 9
call void @use(i1 %c.4)
%c.5 = icmp ugt i32 %y, 99
call void @use(i1 %c.5)
%c.6 = icmp ule i32 %y, 99
call void @use(i1 %c.6)
%c.7 = icmp ugt i32 %y, 100
call void @use(i1 %c.7)
%c.8 = icmp ugt i32 %y, 100
call void @use(i1 %c.8)
%x.next = add i32 %x, 1
br label %loop.header
exit.1:
%t.1 = icmp ugt i32 %y, 10
call void @use(i1 %t.1)
ret void
}