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