; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 ; RUN: opt -passes=instcombine -S < %s | FileCheck %s declare i32 @llvm.cttz.i32(i32, i1) define i32 @test_cttz_lshr(i32 %x) { ; CHECK-LABEL: define i32 @test_cttz_lshr( ; CHECK-SAME: i32 [[X:%.*]]) { ; CHECK-NEXT: [[CTTZ:%.*]] = call range(i32 0, 33) i32 @llvm.cttz.i32(i32 [[X]], i1 true) ; CHECK-NEXT: [[SH:%.*]] = lshr exact i32 [[X]], [[CTTZ]] ; CHECK-NEXT: ret i32 [[SH]] ; %cttz = call i32 @llvm.cttz.i32(i32 %x, i1 false) %sh = lshr i32 %x, %cttz ret i32 %sh } define i32 @test_cttz_ashr(i32 %x) { ; CHECK-LABEL: define i32 @test_cttz_ashr( ; CHECK-SAME: i32 [[X:%.*]]) { ; CHECK-NEXT: [[CTTZ:%.*]] = call range(i32 0, 33) i32 @llvm.cttz.i32(i32 [[X]], i1 true) ; CHECK-NEXT: [[SH:%.*]] = ashr exact i32 [[X]], [[CTTZ]] ; CHECK-NEXT: ret i32 [[SH]] ; %cttz = call i32 @llvm.cttz.i32(i32 %x, i1 true) %sh = ashr i32 %x, %cttz ret i32 %sh } define i32 @test_cttz_diff_operand(i32 %x, i32 %y) { ; CHECK-LABEL: define i32 @test_cttz_diff_operand( ; CHECK-SAME: i32 [[X:%.*]], i32 [[Y:%.*]]) { ; CHECK-NEXT: [[CTTZ:%.*]] = call range(i32 0, 33) i32 @llvm.cttz.i32(i32 [[Y]], i1 true) ; CHECK-NEXT: [[SH:%.*]] = lshr i32 [[X]], [[CTTZ]] ; CHECK-NEXT: ret i32 [[SH]] ; %cttz = call i32 @llvm.cttz.i32(i32 %y, i1 true) %sh = lshr i32 %x, %cttz ret i32 %sh }