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.
125 lines
3.0 KiB
125 lines
3.0 KiB
4 months ago
|
; RUN: opt -analyze -scalar-evolution < %s | FileCheck %s
|
||
|
|
|
||
|
|
declare void @llvm.experimental.guard(i1, ...)
|
||
|
|
declare void @llvm.assume(i1)
|
||
|
|
|
||
|
|
define void @s_0(i32 %n, i1* %cond) {
|
||
|
|
; CHECK-LABEL: Classifying expressions for: @s_0
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ]
|
||
|
|
%iv.inc = add i32 %iv, 1
|
||
|
|
%iv.sext = sext i32 %iv to i64
|
||
|
|
; CHECK: %iv.sext = sext i32 %iv to i64
|
||
|
|
; CHECK-NEXT: --> {0,+,1}<nuw><nsw><%loop>
|
||
|
|
%cmp = icmp slt i32 %iv, %n
|
||
|
|
call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ]
|
||
|
|
%c = load volatile i1, i1* %cond
|
||
|
|
br i1 %c, label %loop, label %leave
|
||
|
|
|
||
|
|
leave:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @s_1(i1* %cond) {
|
||
|
|
; CHECK-LABEL: Classifying expressions for: @s_1
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ]
|
||
|
|
%iv.inc = add i32 %iv, 3
|
||
|
|
%iv.sext = sext i32 %iv to i64
|
||
|
|
; CHECK: %iv.sext = sext i32 %iv to i64
|
||
|
|
; CHECK-NEXT: --> {0,+,3}<nuw><nsw><%loop>
|
||
|
|
%cmp = icmp slt i32 %iv, 10000
|
||
|
|
call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ]
|
||
|
|
%c = load volatile i1, i1* %cond
|
||
|
|
br i1 %c, label %loop, label %leave
|
||
|
|
|
||
|
|
leave:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @s_2(i1* %cond) {
|
||
|
|
; CHECK-LABEL: Classifying expressions for: @s_2
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ]
|
||
|
|
%iv.inc = add i32 %iv, 3
|
||
|
|
%iv.sext = sext i32 %iv to i64
|
||
|
|
%cmp = icmp slt i32 %iv, 10000
|
||
|
|
; CHECK: %iv.sext = sext i32 %iv to i64
|
||
|
|
; CHECK-NEXT: --> {0,+,3}<nuw><nsw><%loop>
|
||
|
|
call void @llvm.assume(i1 %cmp)
|
||
|
|
%c = load volatile i1, i1* %cond
|
||
|
|
br i1 %c, label %loop, label %leave
|
||
|
|
|
||
|
|
leave:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @u_0(i32 %n, i1* %cond) {
|
||
|
|
; CHECK-LABEL: Classifying expressions for: @u_0
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ]
|
||
|
|
%iv.inc = add i32 %iv, 1
|
||
|
|
%iv.zext = zext i32 %iv to i64
|
||
|
|
; CHECK: %iv.zext = zext i32 %iv to i64
|
||
|
|
; CHECK-NEXT: --> {0,+,1}<nuw><%loop>
|
||
|
|
%cmp = icmp ult i32 %iv, %n
|
||
|
|
call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ]
|
||
|
|
%c = load volatile i1, i1* %cond
|
||
|
|
br i1 %c, label %loop, label %leave
|
||
|
|
|
||
|
|
leave:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @u_1(i1* %cond) {
|
||
|
|
; CHECK-LABEL: Classifying expressions for: @u_1
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ]
|
||
|
|
%iv.inc = add i32 %iv, 3
|
||
|
|
%iv.zext = zext i32 %iv to i64
|
||
|
|
; CHECK: %iv.zext = zext i32 %iv to i64
|
||
|
|
; CHECK-NEXT: --> {0,+,3}<nuw><%loop>
|
||
|
|
%cmp = icmp ult i32 %iv, 10000
|
||
|
|
call void(i1, ...) @llvm.experimental.guard(i1 %cmp) [ "deopt"() ]
|
||
|
|
%c = load volatile i1, i1* %cond
|
||
|
|
br i1 %c, label %loop, label %leave
|
||
|
|
|
||
|
|
leave:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @u_2(i1* %cond) {
|
||
|
|
; CHECK-LABEL: Classifying expressions for: @u_2
|
||
|
|
entry:
|
||
|
|
br label %loop
|
||
|
|
|
||
|
|
loop:
|
||
|
|
%iv = phi i32 [ 30000, %entry ], [ %iv.inc, %loop ]
|
||
|
|
%iv.inc = add i32 %iv, -2
|
||
|
|
%iv.zext = zext i32 %iv to i64
|
||
|
|
%cmp = icmp ugt i32 %iv.inc, -10000
|
||
|
|
; CHECK: %iv.zext = zext i32 %iv to i64
|
||
|
|
; CHECK-NEXT: --> {30000,+,-2}<nw><%loop>
|
||
|
|
call void @llvm.assume(i1 %cmp)
|
||
|
|
%c = load volatile i1, i1* %cond
|
||
|
|
br i1 %c, label %loop, label %leave
|
||
|
|
|
||
|
|
leave:
|
||
|
|
ret void
|
||
|
|
}
|