| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -passes="require<profile-summary>,function(codegenprepare)" < %s | FileCheck %s --check-prefix=SLOW |
| ; RUN: opt -S -passes="require<profile-summary>,function(codegenprepare)" -mattr=+bmi < %s | FileCheck %s --check-prefix=FAST_TZ |
| ; RUN: opt -S -passes="require<profile-summary>,function(codegenprepare)" -mattr=+lzcnt < %s | FileCheck %s --check-prefix=FAST_LZ |
| |
| ; RUN: opt -S -enable-debugify -passes="require<profile-summary>,function(codegenprepare)" < %s | FileCheck %s --check-prefix=DEBUGINFO |
| |
| 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) { |
| ; SLOW-LABEL: @cttz( |
| ; SLOW-NEXT: entry: |
| ; SLOW-NEXT: [[Z:%.*]] = call i64 @llvm.cttz.i64(i64 [[A:%.*]], i1 false) |
| ; SLOW-NEXT: ret i64 [[Z]] |
| ; |
| ; FAST_TZ-LABEL: @cttz( |
| ; FAST_TZ-NEXT: entry: |
| ; FAST_TZ-NEXT: [[Z:%.*]] = call i64 @llvm.cttz.i64(i64 [[A:%.*]], i1 false) |
| ; FAST_TZ-NEXT: ret i64 [[Z]] |
| ; |
| ; FAST_LZ-LABEL: @cttz( |
| ; FAST_LZ-NEXT: entry: |
| ; FAST_LZ-NEXT: [[Z:%.*]] = call i64 @llvm.cttz.i64(i64 [[A:%.*]], i1 false) |
| ; FAST_LZ-NEXT: ret i64 [[Z]] |
| ; |
| ; DEBUGINFO-LABEL: @cttz( |
| ; DEBUGINFO-NEXT: entry: |
| ; DEBUGINFO-NEXT: [[Z:%.*]] = call i64 @llvm.cttz.i64(i64 [[A:%.*]], i1 false), !dbg [[DBG11:![0-9]+]] |
| ; DEBUGINFO-NEXT: #dbg_value(i64 [[Z]], [[META9:![0-9]+]], !DIExpression(), [[DBG11]]) |
| ; DEBUGINFO-NEXT: ret i64 [[Z]], !dbg [[DBG12:![0-9]+]] |
| ; |
| entry: |
| %z = call i64 @llvm.cttz.i64(i64 %A, i1 false) |
| ret i64 %z |
| } |
| |
| define i64 @ctlz(i64 %A) { |
| ; SLOW-LABEL: @ctlz( |
| ; SLOW-NEXT: entry: |
| ; SLOW-NEXT: [[Z:%.*]] = call i64 @llvm.ctlz.i64(i64 [[A:%.*]], i1 false) |
| ; SLOW-NEXT: ret i64 [[Z]] |
| ; |
| ; FAST_TZ-LABEL: @ctlz( |
| ; FAST_TZ-NEXT: entry: |
| ; FAST_TZ-NEXT: [[Z:%.*]] = call i64 @llvm.ctlz.i64(i64 [[A:%.*]], i1 false) |
| ; FAST_TZ-NEXT: ret i64 [[Z]] |
| ; |
| ; FAST_LZ-LABEL: @ctlz( |
| ; FAST_LZ-NEXT: entry: |
| ; FAST_LZ-NEXT: [[Z:%.*]] = call i64 @llvm.ctlz.i64(i64 [[A:%.*]], i1 false) |
| ; FAST_LZ-NEXT: ret i64 [[Z]] |
| ; |
| ; DEBUGINFO-LABEL: @ctlz( |
| ; DEBUGINFO-NEXT: entry: |
| ; DEBUGINFO-NEXT: [[Z:%.*]] = call i64 @llvm.ctlz.i64(i64 [[A:%.*]], i1 false), !dbg [[DBG16:![0-9]+]] |
| ; DEBUGINFO-NEXT: #dbg_value(i64 [[Z]], [[META15:![0-9]+]], !DIExpression(), [[DBG16]]) |
| ; DEBUGINFO-NEXT: ret i64 [[Z]], !dbg [[DBG17:![0-9]+]] |
| ; |
| entry: |
| %z = call i64 @llvm.ctlz.i64(i64 %A, i1 false) |
| ret i64 %z |
| } |
| |
| declare i64 @llvm.cttz.i64(i64, i1) |
| declare i64 @llvm.ctlz.i64(i64, i1) |
| |
