| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" |
| |
| declare i32 @llvm.ctpop.i32(i32) |
| declare i32 @llvm.ctlz.i32(i32, i1) |
| declare i32 @llvm.cttz.i32(i32, i1) |
| |
| define i64 @test1(i32 %x) { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: [[T:%.*]] = call i32 @llvm.ctpop.i32(i32 %x) |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[T]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %t = call i32 @llvm.ctpop.i32(i32 %x) |
| %s = sext i32 %t to i64 |
| ret i64 %s |
| } |
| |
| define i64 @test2(i32 %x) { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: [[T:%.*]] = call i32 @llvm.ctlz.i32(i32 %x, i1 true) |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[T]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %t = call i32 @llvm.ctlz.i32(i32 %x, i1 true) |
| %s = sext i32 %t to i64 |
| ret i64 %s |
| } |
| |
| define i64 @test3(i32 %x) { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: [[T:%.*]] = call i32 @llvm.cttz.i32(i32 %x, i1 true) |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[T]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %t = call i32 @llvm.cttz.i32(i32 %x, i1 true) |
| %s = sext i32 %t to i64 |
| ret i64 %s |
| } |
| |
| define i64 @test4(i32 %x) { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: [[T:%.*]] = udiv i32 %x, 3 |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[T]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %t = udiv i32 %x, 3 |
| %s = sext i32 %t to i64 |
| ret i64 %s |
| } |
| |
| define i64 @test5(i32 %x) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: [[T:%.*]] = urem i32 %x, 30000 |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[T]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %t = urem i32 %x, 30000 |
| %s = sext i32 %t to i64 |
| ret i64 %s |
| } |
| |
| define i64 @test6(i32 %x) { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: [[U:%.*]] = lshr i32 %x, 3 |
| ; CHECK-NEXT: [[T:%.*]] = mul nuw nsw i32 [[U]], 3 |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[T]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %u = lshr i32 %x, 3 |
| %t = mul i32 %u, 3 |
| %s = sext i32 %t to i64 |
| ret i64 %s |
| } |
| |
| define i64 @test7(i32 %x) { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: [[T:%.*]] = and i32 %x, 511 |
| ; CHECK-NEXT: [[U:%.*]] = sub nsw i32 20000, [[T]] |
| ; CHECK-NEXT: [[S1:%.*]] = zext i32 [[U]] to i64 |
| ; CHECK-NEXT: ret i64 [[S1]] |
| ; |
| %t = and i32 %x, 511 |
| %u = sub i32 20000, %t |
| %s = sext i32 %u to i64 |
| ret i64 %s |
| } |
| |
| define i32 @test8(i8 %a, i32 %f, i1 %p, i32* %z) { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: [[D:%.*]] = lshr i32 %f, 24 |
| ; CHECK-NEXT: [[N:%.*]] = select i1 %p, i32 [[D]], i32 0 |
| ; CHECK-NEXT: ret i32 [[N]] |
| ; |
| %d = lshr i32 %f, 24 |
| %e = select i1 %p, i32 %d, i32 0 |
| %s = trunc i32 %e to i16 |
| %n = sext i16 %s to i32 |
| ret i32 %n |
| } |
| |
| ; rdar://6013816 |
| define i16 @test9(i16 %t, i1 %cond) { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br i1 %cond, label %T, label %F |
| ; CHECK: T: |
| ; CHECK-NEXT: br label %F |
| ; CHECK: F: |
| ; CHECK-NEXT: [[V_OFF0:%.*]] = phi i16 [ %t, %T ], [ 42, %entry ] |
| ; CHECK-NEXT: ret i16 [[V_OFF0]] |
| ; |
| entry: |
| br i1 %cond, label %T, label %F |
| T: |
| %t2 = sext i16 %t to i32 |
| br label %F |
| |
| F: |
| %V = phi i32 [%t2, %T], [42, %entry] |
| %W = trunc i32 %V to i16 |
| ret i16 %W |
| } |
| |
| ; PR2638 |
| define i32 @test10(i32 %i) { |
| ; CHECK-LABEL: @test10( |
| ; CHECK-NEXT: [[B1:%.*]] = shl i32 %i, 30 |
| ; CHECK-NEXT: [[B:%.*]] = ashr exact i32 [[B1]], 30 |
| ; CHECK-NEXT: ret i32 [[B]] |
| ; |
| %tmp12 = trunc i32 %i to i8 |
| %tmp16 = shl i8 %tmp12, 6 |
| %a = ashr i8 %tmp16, 6 |
| %b = sext i8 %a to i32 |
| ret i32 %b |
| } |
| |
| define void @test11(<2 x i16> %srcA, <2 x i16> %srcB, <2 x i16>* %dst) { |
| ; CHECK-LABEL: @test11( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i16> %srcB, %srcA |
| ; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[CMP]] to <2 x i16> |
| ; CHECK-NEXT: store <2 x i16> [[SEXT]], <2 x i16>* %dst, align 4 |
| ; CHECK-NEXT: ret void |
| ; |
| %cmp = icmp eq <2 x i16> %srcB, %srcA |
| %sext = sext <2 x i1> %cmp to <2 x i16> |
| %tmask = ashr <2 x i16> %sext, <i16 15, i16 15> |
| store <2 x i16> %tmask, <2 x i16>* %dst |
| ret void |
| } |
| |
| define i64 @test12(i32 %x) { |
| ; CHECK-LABEL: @test12( |
| ; CHECK-NEXT: [[SHR:%.*]] = lshr i32 %x, 1 |
| ; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 0, [[SHR]] |
| ; CHECK-NEXT: [[CONV:%.*]] = sext i32 [[SUB]] to i64 |
| ; CHECK-NEXT: ret i64 [[CONV]] |
| ; |
| %shr = lshr i32 %x, 1 |
| %sub = sub nsw i32 0, %shr |
| %conv = sext i32 %sub to i64 |
| ret i64 %conv |
| } |
| |
| define i32 @test13(i32 %x) { |
| ; CHECK-LABEL: @test13( |
| ; CHECK-NEXT: [[AND:%.*]] = lshr i32 %x, 3 |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i32 [[AND]], 1 |
| ; CHECK-NEXT: [[SEXT:%.*]] = add nsw i32 [[TMP1]], -1 |
| ; CHECK-NEXT: ret i32 [[SEXT]] |
| ; |
| %and = and i32 %x, 8 |
| %cmp = icmp eq i32 %and, 0 |
| %ext = sext i1 %cmp to i32 |
| ret i32 %ext |
| } |
| |
| define i32 @test14(i16 %x) { |
| ; CHECK-LABEL: @test14( |
| ; CHECK-NEXT: [[AND:%.*]] = lshr i16 %x, 4 |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i16 [[AND]], 1 |
| ; CHECK-NEXT: [[SEXT:%.*]] = add nsw i16 [[TMP1]], -1 |
| ; CHECK-NEXT: [[EXT:%.*]] = sext i16 [[SEXT]] to i32 |
| ; CHECK-NEXT: ret i32 [[EXT]] |
| ; |
| %and = and i16 %x, 16 |
| %cmp = icmp ne i16 %and, 16 |
| %ext = sext i1 %cmp to i32 |
| ret i32 %ext |
| } |
| |
| define i32 @test15(i32 %x) { |
| ; CHECK-LABEL: @test15( |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl i32 %x, 27 |
| ; CHECK-NEXT: [[SEXT:%.*]] = ashr i32 [[TMP1]], 31 |
| ; CHECK-NEXT: ret i32 [[SEXT]] |
| ; |
| %and = and i32 %x, 16 |
| %cmp = icmp ne i32 %and, 0 |
| %ext = sext i1 %cmp to i32 |
| ret i32 %ext |
| } |
| |
| define i32 @test16(i16 %x) { |
| ; CHECK-LABEL: @test16( |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl i16 %x, 12 |
| ; CHECK-NEXT: [[SEXT:%.*]] = ashr i16 [[TMP1]], 15 |
| ; CHECK-NEXT: [[EXT:%.*]] = sext i16 [[SEXT]] to i32 |
| ; CHECK-NEXT: ret i32 [[EXT]] |
| ; |
| %and = and i16 %x, 8 |
| %cmp = icmp eq i16 %and, 8 |
| %ext = sext i1 %cmp to i32 |
| ret i32 %ext |
| } |
| |
| define i32 @test17(i1 %x) { |
| ; CHECK-LABEL: @test17( |
| ; CHECK-NEXT: [[C2:%.*]] = zext i1 %x to i32 |
| ; CHECK-NEXT: ret i32 [[C2]] |
| ; |
| %c1 = sext i1 %x to i32 |
| %c2 = sub i32 0, %c1 |
| ret i32 %c2 |
| } |
| |
| define i32 @test18(i16 %x) { |
| ; CHECK-LABEL: @test18( |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i16 %x, 0 |
| ; CHECK-NEXT: [[SEL:%.*]] = select i1 [[TMP1]], i16 %x, i16 0 |
| ; CHECK-NEXT: [[TMP2:%.*]] = zext i16 [[SEL]] to i32 |
| ; CHECK-NEXT: ret i32 [[TMP2]] |
| ; |
| %cmp = icmp slt i16 %x, 0 |
| %sel = select i1 %cmp, i16 0, i16 %x |
| %ext = sext i16 %sel to i32 |
| ret i32 %ext |
| } |
| |