Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Analysis/ScalarEvolution/fold.ll

@@ -1,100 +0,0 @@
-; RUN: opt -analyze -scalar-evolution -S < %s | FileCheck %s
-
-define i16 @test1(i8 %x) {
-  %A = zext i8 %x to i12
-  %B = sext i12 %A to i16
-; CHECK: zext i8 %x to i16
-  ret i16 %B
-}
-
-define i8 @test2(i8 %x) {
-  %A = zext i8 %x to i16
-  %B = add i16 %A, 1025
-  %C = trunc i16 %B to i8
-; CHECK: (1 + %x)
-  ret i8 %C
-}
-
-define i8 @test3(i8 %x) {
-  %A = zext i8 %x to i16
-  %B = mul i16 %A, 1027
-  %C = trunc i16 %B to i8
-; CHECK: (3 * %x)
-  ret i8 %C
-}
-
-define void @test4(i32 %x, i32 %y) {
-entry:
-  %Y = and i32 %y, 3
-  br label %loop
-loop:
-  %A = phi i32 [0, %entry], [%I, %loop]
-  %rand1 = icmp sgt i32 %A, %Y
-  %Z1 = select i1 %rand1, i32 %A, i32 %Y
-  %rand2 = icmp ugt i32 %A, %Z1
-  %Z2 = select i1 %rand2, i32 %A, i32 %Z1
-; CHECK: %Z2 =
-; CHECK-NEXT: -->  ([[EXPR:.*]]){{ U: [^ ]+ S: [^ ]+}}{{ +}}Exits: 20
-  %B = trunc i32 %Z2 to i16
-  %C = sext i16 %B to i30
-; CHECK: %C =
-; CHECK-NEXT: (trunc i32 ([[EXPR]]) to i30)
-  %D = sext i16 %B to i32
-; CHECK: %D =
-; CHECK-NEXT: ([[EXPR]])
-  %E = sext i16 %B to i34
-; CHECK: %E =
-; CHECK-NEXT: (zext i32 ([[EXPR]]) to i34)
-  %F = zext i16 %B to i30
-; CHECK: %F =
-; CHECK-NEXT: (trunc i32 ([[EXPR]]) to i30
-  %G = zext i16 %B to i32
-; CHECK: %G =
-; CHECK-NEXT: ([[EXPR]])
-  %H = zext i16 %B to i34
-; CHECK: %H =
-; CHECK-NEXT: (zext i32 ([[EXPR]]) to i34)
-  %I = add i32 %A, 1
-  %0 = icmp ne i32 %A, 20
-  br i1 %0, label %loop, label %exit
-exit:
-  ret void
-}
-
-define void @test5(i32 %i) {
-; CHECK-LABEL: @test5
-  %A = and i32 %i, 1
-; CHECK: -->  (zext i1 (trunc i32 %i to i1) to i32)
-  %B = and i32 %i, 2
-; CHECK: -->  (2 * (zext i1 (trunc i32 (%i /u 2) to i1) to i32))
-  %C = and i32 %i, 63
-; CHECK: -->  (zext i6 (trunc i32 %i to i6) to i32)
-  %D = and i32 %i, 126
-; CHECK: -->  (2 * (zext i6 (trunc i32 (%i /u 2) to i6) to i32))
-  %E = and i32 %i, 64
-; CHECK: -->  (64 * (zext i1 (trunc i32 (%i /u 64) to i1) to i32))
-  %F = and i32 %i, -2147483648
-; CHECK: -->  (-2147483648 * (%i /u -2147483648))
-  ret void
-}
-
-define void @test6(i8 %x) {
-; CHECK-LABEL: @test6
-  %A = zext i8 %x to i16
-  %B = shl nuw i16 %A, 8
-  %C = and i16 %B, -2048
-; CHECK: -->  (2048 * ((zext i8 %x to i16) /u 8))
-  ret void
-}
-
-; PR22960
-define void @test7(i32 %A) {
-; CHECK-LABEL: @test7
-  %B = sext i32 %A to i64
-  %C = zext i32 %A to i64
-  %D = sub i64 %B, %C
-  %E = trunc i64 %D to i16
-; CHECK: %E
-; CHECK-NEXT: -->  0
-  ret void
-}