Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/X86/loop-search.ll

@@ -1,65 +0,0 @@
-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
-
-; This test comes from PR27136
-; We should hoist loop constant invariant
-
-define zeroext i1 @search(i32 %needle, i32* nocapture readonly %haystack, i32 %count) {
-; CHECK-LABEL: search:
-; CHECK:       ## %bb.0: ## %entry
-; CHECK-NEXT:    testl %edx, %edx
-; CHECK-NEXT:    jle LBB0_1
-; CHECK-NEXT:  ## %bb.4: ## %for.body.preheader
-; CHECK-NEXT:    movslq %edx, %rax
-; CHECK-NEXT:    xorl %ecx, %ecx
-; CHECK-NEXT:    .p2align 4, 0x90
-; CHECK-NEXT:  LBB0_5: ## %for.body
-; CHECK-NEXT:    ## =>This Inner Loop Header: Depth=1
-; CHECK-NEXT:    cmpl %edi, (%rsi,%rcx,4)
-; CHECK-NEXT:    je LBB0_6
-; CHECK-NEXT:  ## %bb.2: ## %for.cond
-; CHECK-NEXT:    ## in Loop: Header=BB0_5 Depth=1
-; CHECK-NEXT:    incq %rcx
-; CHECK-NEXT:    cmpq %rax, %rcx
-; CHECK-NEXT:    jl LBB0_5
-;            ### FIXME: %bb.3 and LBB0_1 should be merged
-; CHECK-NEXT:  ## %bb.3:
-; CHECK-NEXT:    xorl %eax, %eax
-; CHECK-NEXT:    ## kill: def %al killed %al killed %eax
-; CHECK-NEXT:    retq
-; CHECK-NEXT:  LBB0_1:
-; CHECK-NEXT:    xorl %eax, %eax
-; CHECK-NEXT:    ## kill: def %al killed %al killed %eax
-; CHECK-NEXT:    retq
-; CHECK-NEXT:  LBB0_6:
-; CHECK-NEXT:    movb $1, %al
-; CHECK-NEXT:    ## kill: def %al killed %al killed %eax
-; CHECK-NEXT:    retq
-entry:
-  %cmp5 = icmp sgt i32 %count, 0
-  br i1 %cmp5, label %for.body.preheader, label %cleanup
-
-for.body.preheader:                               ; preds = %entry
-  %0 = sext i32 %count to i64
-  br label %for.body
-
-for.cond:                                         ; preds = %for.body
-  %cmp = icmp slt i64 %indvars.iv.next, %0
-  br i1 %cmp, label %for.body, label %cleanup.loopexit
-
-for.body:                                         ; preds = %for.body.preheader, %for.cond
-  %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.cond ]
-  %arrayidx = getelementptr inbounds i32, i32* %haystack, i64 %indvars.iv
-  %1 = load i32, i32* %arrayidx, align 4
-  %cmp1 = icmp eq i32 %1, %needle
-  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
-  br i1 %cmp1, label %cleanup.loopexit, label %for.cond
-
-cleanup.loopexit:                                 ; preds = %for.cond, %for.body
-  %.ph = phi i1 [ false, %for.cond ], [ true, %for.body ]
-  br label %cleanup
-
-cleanup:                                          ; preds = %cleanup.loopexit, %entry
-  %2 = phi i1 [ false, %entry ], [ %.ph, %cleanup.loopexit ]
-  ret i1 %2
-}