Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190

external/llvm/test/Transforms/CodeGenPrepare/X86/cttz-ctlz.ll

@@ -1,56 +0,0 @@
-; RUN: opt -S -codegenprepare < %s | FileCheck %s --check-prefix=SLOW
-; RUN: opt -S -codegenprepare -mattr=+bmi < %s | FileCheck %s --check-prefix=FAST_TZ
-; RUN: opt -S -codegenprepare -mattr=+lzcnt < %s | FileCheck %s --check-prefix=FAST_LZ
-
-target triple = "x86_64-unknown-unknown"
-target datalayout = "e-n32:64"
-
-; If the intrinsic is cheap, nothing should change.
-; If the intrinsic is expensive, check if the input is zero to avoid the call. 
-; This is undoing speculation that may have been created by SimplifyCFG + InstCombine.
-
-define i64 @cttz(i64 %A) {
-entry:
-  %z = call i64 @llvm.cttz.i64(i64 %A, i1 false)
-  ret i64 %z
-
-; SLOW-LABEL: @cttz(
-; SLOW: entry:
-; SLOW:   %cmpz = icmp eq i64 %A, 0
-; SLOW:   br i1 %cmpz, label %cond.end, label %cond.false
-; SLOW: cond.false:
-; SLOW:   %z = call i64 @llvm.cttz.i64(i64 %A, i1 true)
-; SLOW:   br label %cond.end
-; SLOW: cond.end:
-; SLOW:   %ctz = phi i64 [ 64, %entry ], [ %z, %cond.false ]
-; SLOW:   ret i64 %ctz
-
-; FAST_TZ-LABEL: @cttz(
-; FAST_TZ:  %z = call i64 @llvm.cttz.i64(i64 %A, i1 false)
-; FAST_TZ:  ret i64 %z
-}
-
-define i64 @ctlz(i64 %A) {
-entry:
-  %z = call i64 @llvm.ctlz.i64(i64 %A, i1 false)
-  ret i64 %z
-
-; SLOW-LABEL: @ctlz(
-; SLOW: entry:
-; SLOW:   %cmpz = icmp eq i64 %A, 0
-; SLOW:   br i1 %cmpz, label %cond.end, label %cond.false
-; SLOW: cond.false:
-; SLOW:   %z = call i64 @llvm.ctlz.i64(i64 %A, i1 true)
-; SLOW:   br label %cond.end
-; SLOW: cond.end:
-; SLOW:   %ctz = phi i64 [ 64, %entry ], [ %z, %cond.false ]
-; SLOW:   ret i64 %ctz
-
-; FAST_LZ-LABEL: @ctlz(
-; FAST_LZ:  %z = call i64 @llvm.ctlz.i64(i64 %A, i1 false)
-; FAST_LZ:  ret i64 %z
-}
-
-declare i64 @llvm.cttz.i64(i64, i1)
-declare i64 @llvm.ctlz.i64(i64, i1)
-