Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/StraightLineStrengthReduce/slsr-mul.ll

@@ -1,147 +0,0 @@
-; RUN: opt < %s -slsr -gvn -S | FileCheck %s
-
-target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"
-
-define void @slsr1(i32 %b, i32 %s) {
-; CHECK-LABEL: @slsr1(
-  ; foo(b * s);
-  %mul0 = mul i32 %b, %s
-; CHECK: mul i32
-; CHECK-NOT: mul i32
-  call void @foo(i32 %mul0)
-
-  ; foo((b + 1) * s);
-  %b1 = add i32 %b, 1
-  %mul1 = mul i32 %b1, %s
-  call void @foo(i32 %mul1)
-
-  ; foo((b + 2) * s);
-  %b2 = add i32 %b, 2
-  %mul2 = mul i32 %b2, %s
-  call void @foo(i32 %mul2)
-
-  ret void
-}
-
-define void @non_canonicalized(i32 %b, i32 %s) {
-; CHECK-LABEL: @non_canonicalized(
-  ; foo(b * s);
-  %mul0 = mul i32 %b, %s
-; CHECK: mul i32
-; CHECK-NOT: mul i32
-  call void @foo(i32 %mul0)
-
-  ; foo((1 + b) * s);
-  %b1 = add i32 1, %b
-  %mul1 = mul i32 %b1, %s
-  call void @foo(i32 %mul1)
-
-  ; foo((2 + b) * s);
-  %b2 = add i32 2, %b
-  %mul2 = mul i32 %b2, %s
-  call void @foo(i32 %mul2)
-
-  ret void
-}
-
-define void @or(i32 %a, i32 %s) {
-  %b = shl i32 %a, 1
-; CHECK-LABEL: @or(
-  ; foo(b * s);
-  %mul0 = mul i32 %b, %s
-; CHECK: [[base:[^ ]+]] = mul i32
-  call void @foo(i32 %mul0)
-
-  ; foo((b | 1) * s);
-  %b1 = or i32 %b, 1
-  %mul1 = mul i32 %b1, %s
-; CHECK: add i32 [[base]], %s
-  call void @foo(i32 %mul1)
-
-  ; foo((b | 2) * s);
-  %b2 = or i32 %b, 2
-  %mul2 = mul i32 %b2, %s
-; CHECK: mul i32 %b2, %s
-  call void @foo(i32 %mul2)
-
-  ret void
-}
-
-; foo(a * b)
-; foo((a + 1) * b)
-; foo(a * (b + 1))
-; foo((a + 1) * (b + 1))
-define void @slsr2(i32 %a, i32 %b) {
-; CHECK-LABEL: @slsr2(
-  %a1 = add i32 %a, 1
-  %b1 = add i32 %b, 1
-  %mul0 = mul i32 %a, %b
-; CHECK: mul i32
-; CHECK-NOT: mul i32
-  %mul1 = mul i32 %a1, %b
-  %mul2 = mul i32 %a, %b1
-  %mul3 = mul i32 %a1, %b1
-
-  call void @foo(i32 %mul0)
-  call void @foo(i32 %mul1)
-  call void @foo(i32 %mul2)
-  call void @foo(i32 %mul3)
-
-  ret void
-}
-
-; The bump is a multiple of the stride.
-;
-; foo(b * s);
-; foo((b + 2) * s);
-; foo((b + 4) * s);
-;   =>
-; mul0 = b * s;
-; bump = s * 2;
-; mul1 = mul0 + bump; // GVN ensures mul1 and mul2 use the same bump.
-; mul2 = mul1 + bump;
-define void @slsr3(i32 %b, i32 %s) {
-; CHECK-LABEL: @slsr3(
-  %mul0 = mul i32 %b, %s
-; CHECK: mul i32
-  call void @foo(i32 %mul0)
-
-  %b1 = add i32 %b, 2
-  %mul1 = mul i32 %b1, %s
-; CHECK: [[BUMP:%[a-zA-Z0-9]+]] = shl i32 %s, 1
-; CHECK: %mul1 = add i32 %mul0, [[BUMP]]
-  call void @foo(i32 %mul1)
-
-  %b2 = add i32 %b, 4
-  %mul2 = mul i32 %b2, %s
-; CHECK: %mul2 = add i32 %mul1, [[BUMP]]
-  call void @foo(i32 %mul2)
-
-  ret void
-}
-
-; Do not rewrite a candidate if its potential basis does not dominate it.
-;
-; if (cond)
-;   foo(a * b);
-; foo((a + 1) * b);
-define void @not_dominate(i1 %cond, i32 %a, i32 %b) {
-; CHECK-LABEL: @not_dominate(
-entry:
-  %a1 = add i32 %a, 1
-  br i1 %cond, label %then, label %merge
-
-then:
-  %mul0 = mul i32 %a, %b
-; CHECK: %mul0 = mul i32 %a, %b
-  call void @foo(i32 %mul0)
-  br label %merge
-
-merge:
-  %mul1 = mul i32 %a1, %b
-; CHECK: %mul1 = mul i32 %a1, %b
-  call void @foo(i32 %mul1)
-  ret void
-}
-
-declare void @foo(i32)