; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -passes=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-n8:16:32:64" declare void @use(i32) declare void @use16(i16) declare void @use1(i1) define i8 @testi16i8(i16 %add) { ; CHECK-LABEL: @testi16i8( ; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.smax.i16(i16 [[ADD:%.*]], i16 -128) ; CHECK-NEXT: [[TMP2:%.*]] = call i16 @llvm.smin.i16(i16 [[TMP1]], i16 127) ; CHECK-NEXT: [[TMP3:%.*]] = trunc i16 [[TMP2]] to i8 ; CHECK-NEXT: ret i8 [[TMP3]] ; %sh = lshr i16 %add, 8 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i %shr4.i = ashr i16 %add, 15 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } define i32 @testi64i32(i64 %add) { ; CHECK-LABEL: @testi64i32( ; CHECK-NEXT: [[TMP1:%.*]] = call i64 @llvm.smax.i64(i64 [[ADD:%.*]], i64 -2147483648) ; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.smin.i64(i64 [[TMP1]], i64 2147483647) ; CHECK-NEXT: [[TMP3:%.*]] = trunc i64 [[TMP2]] to i32 ; CHECK-NEXT: ret i32 [[TMP3]] ; %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i ret i32 %cond.i } define i16 @testi32i16i8(i32 %add) { ; CHECK-LABEL: @testi32i16i8( ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.smax.i32(i32 [[ADD:%.*]], i32 -128) ; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.smin.i32(i32 [[TMP1]], i32 127) ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[TMP2]] to i16 ; CHECK-NEXT: ret i16 [[TMP3]] ; %a = add i32 %add, 128 %cmp = icmp ult i32 %a, 256 %t = trunc i32 %add to i16 %c = icmp sgt i32 %add, -1 %f = select i1 %c, i16 127, i16 -128 %r = select i1 %cmp, i16 %t, i16 %f ret i16 %r } define <4 x i16> @testv4i32i16i8(<4 x i32> %add) { ; CHECK-LABEL: @testv4i32i16i8( ; CHECK-NEXT: [[TMP1:%.*]] = call <4 x i32> @llvm.smax.v4i32(<4 x i32> [[ADD:%.*]], <4 x i32> <i32 -128, i32 -128, i32 -128, i32 -128>) ; CHECK-NEXT: [[TMP2:%.*]] = call <4 x i32> @llvm.smin.v4i32(<4 x i32> [[TMP1]], <4 x i32> <i32 127, i32 127, i32 127, i32 127>) ; CHECK-NEXT: [[TMP3:%.*]] = trunc <4 x i32> [[TMP2]] to <4 x i16> ; CHECK-NEXT: ret <4 x i16> [[TMP3]] ; %a = add <4 x i32> %add, <i32 128, i32 128, i32 128, i32 128> %cmp = icmp ult <4 x i32> %a, <i32 256, i32 256, i32 256, i32 256> %t = trunc <4 x i32> %add to <4 x i16> %c = icmp sgt <4 x i32> %add, <i32 -1, i32 -1, i32 -1, i32 -1> %f = select <4 x i1> %c, <4 x i16> <i16 127, i16 127, i16 127, i16 127>, <4 x i16> <i16 -128, i16 -128, i16 -128, i16 -128> %r = select <4 x i1> %cmp, <4 x i16> %t, <4 x i16> %f ret <4 x i16> %r } define i32 @testi32i32i8(i32 %add) { ; CHECK-LABEL: @testi32i32i8( ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.smax.i32(i32 [[ADD:%.*]], i32 -128) ; CHECK-NEXT: [[TMP2:%.*]] = call i32 @llvm.smin.i32(i32 [[TMP1]], i32 127) ; CHECK-NEXT: ret i32 [[TMP2]] ; %a = add i32 %add, 128 %cmp = icmp ult i32 %a, 256 %c = icmp sgt i32 %add, -1 %f = select i1 %c, i32 127, i32 -128 %r = select i1 %cmp, i32 %add, i32 %f ret i32 %r } define i16 @test_truncfirst(i32 %add) { ; CHECK-LABEL: @test_truncfirst( ; CHECK-NEXT: [[T:%.*]] = trunc i32 [[ADD:%.*]] to i16 ; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.smax.i16(i16 [[T]], i16 -128) ; CHECK-NEXT: [[TMP2:%.*]] = call i16 @llvm.smin.i16(i16 [[TMP1]], i16 127) ; CHECK-NEXT: ret i16 [[TMP2]] ; %t = trunc i32 %add to i16 %a = add i16 %t, 128 %cmp = icmp ult i16 %a, 256 %c = icmp sgt i16 %t, -1 %f = select i1 %c, i16 127, i16 -128 %r = select i1 %cmp, i16 %t, i16 %f ret i16 %r } define i16 @testtrunclowhigh(i32 %add, i16 %low, i16 %high) { ; CHECK-LABEL: @testtrunclowhigh( ; CHECK-NEXT: [[A:%.*]] = add i32 [[ADD:%.*]], 128 ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[A]], 256 ; CHECK-NEXT: [[T:%.*]] = trunc i32 [[ADD]] to i16 ; CHECK-NEXT: [[C1:%.*]] = icmp slt i32 [[ADD]], 0 ; CHECK-NEXT: [[F:%.*]] = select i1 [[C1]], i16 [[LOW:%.*]], i16 [[HIGH:%.*]] ; CHECK-NEXT: [[R:%.*]] = select i1 [[CMP]], i16 [[T]], i16 [[F]] ; CHECK-NEXT: ret i16 [[R]] ; %a = add i32 %add, 128 %cmp = icmp ult i32 %a, 256 %t = trunc i32 %add to i16 %c = icmp sgt i32 %add, -1 %f = select i1 %c, i16 %high, i16 %low %r = select i1 %cmp, i16 %t, i16 %f ret i16 %r } define i32 @testi64i32addsat(i32 %a, i32 %b) { ; CHECK-LABEL: @testi64i32addsat( ; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.sadd.sat.i32(i32 [[A:%.*]], i32 [[B:%.*]]) ; CHECK-NEXT: ret i32 [[TMP1]] ; %sa = sext i32 %a to i64 %sb = sext i32 %b to i64 %add = add i64 %sa, %sb %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i ret i32 %cond.i } define <4 x i8> @testv4i16i8(<4 x i16> %add) { ; CHECK-LABEL: @testv4i16i8( ; CHECK-NEXT: [[TMP1:%.*]] = call <4 x i16> @llvm.smax.v4i16(<4 x i16> [[ADD:%.*]], <4 x i16> <i16 -128, i16 -128, i16 -128, i16 -128>) ; CHECK-NEXT: [[TMP2:%.*]] = call <4 x i16> @llvm.smin.v4i16(<4 x i16> [[TMP1]], <4 x i16> <i16 127, i16 127, i16 127, i16 127>) ; CHECK-NEXT: [[TMP3:%.*]] = trunc <4 x i16> [[TMP2]] to <4 x i8> ; CHECK-NEXT: ret <4 x i8> [[TMP3]] ; %sh = lshr <4 x i16> %add, <i16 8, i16 8, i16 8, i16 8> %conv.i = trunc <4 x i16> %sh to <4 x i8> %conv1.i = trunc <4 x i16> %add to <4 x i8> %shr2.i = ashr <4 x i8> %conv1.i, <i8 7, i8 7, i8 7, i8 7> %cmp.not.i = icmp eq <4 x i8> %shr2.i, %conv.i %shr4.i = ashr <4 x i16> %add, <i16 15, i16 15, i16 15, i16 15> %conv5.i = trunc <4 x i16> %shr4.i to <4 x i8> %xor.i = xor <4 x i8> %conv5.i, <i8 127, i8 127, i8 127, i8 127> %cond.i = select <4 x i1> %cmp.not.i, <4 x i8> %conv1.i, <4 x i8> %xor.i ret <4 x i8> %cond.i } define <4 x i8> @testv4i16i8add(<4 x i8> %a, <4 x i8> %b) { ; CHECK-LABEL: @testv4i16i8add( ; CHECK-NEXT: [[TMP1:%.*]] = call <4 x i8> @llvm.sadd.sat.v4i8(<4 x i8> [[A:%.*]], <4 x i8> [[B:%.*]]) ; CHECK-NEXT: ret <4 x i8> [[TMP1]] ; %sa = sext <4 x i8> %a to <4 x i16> %sb = sext <4 x i8> %b to <4 x i16> %add = add <4 x i16> %sa, %sb %sh = lshr <4 x i16> %add, <i16 8, i16 8, i16 8, i16 8> %conv.i = trunc <4 x i16> %sh to <4 x i8> %conv1.i = trunc <4 x i16> %add to <4 x i8> %shr2.i = ashr <4 x i8> %conv1.i, <i8 7, i8 7, i8 7, i8 7> %cmp.not.i = icmp eq <4 x i8> %shr2.i, %conv.i %shr4.i = ashr <4 x i16> %add, <i16 15, i16 15, i16 15, i16 15> %conv5.i = trunc <4 x i16> %shr4.i to <4 x i8> %xor.i = xor <4 x i8> %conv5.i, <i8 127, i8 127, i8 127, i8 127> %cond.i = select <4 x i1> %cmp.not.i, <4 x i8> %conv1.i, <4 x i8> %xor.i ret <4 x i8> %cond.i } define i8 @testi16i8_revcmp(i16 %add) { ; CHECK-LABEL: @testi16i8_revcmp( ; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.smax.i16(i16 [[ADD:%.*]], i16 -128) ; CHECK-NEXT: [[TMP2:%.*]] = call i16 @llvm.smin.i16(i16 [[TMP1]], i16 127) ; CHECK-NEXT: [[TMP3:%.*]] = trunc i16 [[TMP2]] to i8 ; CHECK-NEXT: ret i8 [[TMP3]] ; %sh = lshr i16 %add, 8 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp eq i8 %conv.i, %shr2.i %shr4.i = ashr i16 %add, 15 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } define i8 @testi16i8_revselect(i16 %add) { ; CHECK-LABEL: @testi16i8_revselect( ; CHECK-NEXT: [[TMP1:%.*]] = call i16 @llvm.smax.i16(i16 [[ADD:%.*]], i16 -128) ; CHECK-NEXT: [[TMP2:%.*]] = call i16 @llvm.smin.i16(i16 [[TMP1]], i16 127) ; CHECK-NEXT: [[TMP3:%.*]] = trunc i16 [[TMP2]] to i8 ; CHECK-NEXT: ret i8 [[TMP3]] ; %sh = lshr i16 %add, 8 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp ne i8 %conv.i, %shr2.i %shr4.i = ashr i16 %add, 15 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %xor.i, i8 %conv1.i ret i8 %cond.i } define i8 @testi32i8(i32 %add) { ; CHECK-LABEL: @testi32i8( ; CHECK-NEXT: [[SH:%.*]] = lshr i32 [[ADD:%.*]], 8 ; CHECK-NEXT: [[CONV_I:%.*]] = trunc i32 [[SH]] to i8 ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i32 [[ADD]] to i8 ; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 7 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]] ; CHECK-NEXT: [[TMP1:%.*]] = lshr i32 [[ADD]], 15 ; CHECK-NEXT: [[CONV5_I:%.*]] = trunc i32 [[TMP1]] to i8 ; CHECK-NEXT: [[XOR_I:%.*]] = xor i8 [[CONV5_I]], 127 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i8 [[CONV1_I]], i8 [[XOR_I]] ; CHECK-NEXT: ret i8 [[COND_I]] ; %sh = lshr i32 %add, 8 %conv.i = trunc i32 %sh to i8 %conv1.i = trunc i32 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i %shr4.i = ashr i32 %add, 15 %conv5.i = trunc i32 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } define i16 @differentconsts(i32 %x, i16 %replacement_low, i16 %replacement_high) { ; CHECK-LABEL: @differentconsts( ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X:%.*]], -16 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 [[X]], 127 ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[X]] to i16 ; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP1]], i16 256, i16 [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = select i1 [[TMP2]], i16 -1, i16 [[TMP4]] ; CHECK-NEXT: ret i16 [[TMP5]] ; %t0 = icmp slt i32 %x, 128 %t1 = select i1 %t0, i16 256, i16 65535 %t2 = add i32 %x, 16 %t3 = icmp ult i32 %t2, 144 %t4 = trunc i32 %x to i16 %r = select i1 %t3, i16 %t4, i16 %t1 ret i16 %r } define i8 @badimm1(i16 %add) { ; CHECK-LABEL: @badimm1( ; CHECK-NEXT: [[SH:%.*]] = lshr i16 [[ADD:%.*]], 9 ; CHECK-NEXT: [[CONV_I:%.*]] = trunc i16 [[SH]] to i8 ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD]] to i8 ; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 7 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i16 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP1]], i8 127, i8 -128 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i8 [[CONV1_I]], i8 [[XOR_I]] ; CHECK-NEXT: ret i8 [[COND_I]] ; %sh = lshr i16 %add, 9 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i %shr4.i = ashr i16 %add, 15 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } define i8 @badimm2(i16 %add) { ; CHECK-LABEL: @badimm2( ; CHECK-NEXT: [[SH:%.*]] = lshr i16 [[ADD:%.*]], 8 ; CHECK-NEXT: [[CONV_I:%.*]] = trunc i16 [[SH]] to i8 ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD]] to i8 ; CHECK-NEXT: [[SHR2_I:%.*]] = ashr i8 [[CONV1_I]], 6 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp eq i8 [[SHR2_I]], [[CONV_I]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i16 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP1]], i8 127, i8 -128 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i8 [[CONV1_I]], i8 [[XOR_I]] ; CHECK-NEXT: ret i8 [[COND_I]] ; %sh = lshr i16 %add, 8 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 6 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i %shr4.i = ashr i16 %add, 15 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } define i8 @badimm3(i16 %add) { ; CHECK-LABEL: @badimm3( ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i16 [[ADD:%.*]] to i8 ; CHECK-NEXT: [[TMP1:%.*]] = add i16 [[ADD]], 128 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i16 [[TMP1]], 256 ; CHECK-NEXT: [[SHR4_I:%.*]] = ashr i16 [[ADD]], 14 ; CHECK-NEXT: [[CONV5_I:%.*]] = trunc i16 [[SHR4_I]] to i8 ; CHECK-NEXT: [[XOR_I:%.*]] = xor i8 [[CONV5_I]], 127 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i8 [[CONV1_I]], i8 [[XOR_I]] ; CHECK-NEXT: ret i8 [[COND_I]] ; %sh = lshr i16 %add, 8 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i %shr4.i = ashr i16 %add, 14 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 127 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } define i8 @badimm4(i16 %add) { ; CHECK-LABEL: @badimm4( ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i16 [[ADD:%.*]], -128 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i16 [[ADD]], 127 ; CHECK-NEXT: [[TMP3:%.*]] = trunc i16 [[ADD]] to i8 ; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP1]], i8 -127, i8 [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = select i1 [[TMP2]], i8 126, i8 [[TMP4]] ; CHECK-NEXT: ret i8 [[TMP5]] ; %sh = lshr i16 %add, 8 %conv.i = trunc i16 %sh to i8 %conv1.i = trunc i16 %add to i8 %shr2.i = ashr i8 %conv1.i, 7 %cmp.not.i = icmp eq i8 %shr2.i, %conv.i %shr4.i = ashr i16 %add, 15 %conv5.i = trunc i16 %shr4.i to i8 %xor.i = xor i8 %conv5.i, 126 %cond.i = select i1 %cmp.not.i, i8 %conv1.i, i8 %xor.i ret i8 %cond.i } ; One use checks define i32 @oneusexor(i64 %add) { ; CHECK-LABEL: @oneusexor( ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i64 [[ADD:%.*]] to i32 ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD]], 2147483648 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], 4294967296 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i64 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP2]], i32 2147483647, i32 -2147483648 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i32 [[CONV1_I]], i32 [[XOR_I]] ; CHECK-NEXT: call void @use(i32 [[XOR_I]]) ; CHECK-NEXT: ret i32 [[COND_I]] ; %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i call void @use(i32 %xor.i) ret i32 %cond.i } define i32 @oneuseconv(i64 %add) { ; CHECK-LABEL: @oneuseconv( ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i64 [[ADD:%.*]] to i32 ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD]], 2147483648 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], 4294967296 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i64 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP2]], i32 2147483647, i32 -2147483648 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i32 [[CONV1_I]], i32 [[XOR_I]] ; CHECK-NEXT: call void @use(i32 [[CONV1_I]]) ; CHECK-NEXT: ret i32 [[COND_I]] ; %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i call void @use(i32 %conv1.i) ret i32 %cond.i } define i32 @oneusecmp(i64 %add) { ; CHECK-LABEL: @oneusecmp( ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i64 [[ADD:%.*]] to i32 ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD]], 2147483648 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], 4294967296 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i64 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP2]], i32 2147483647, i32 -2147483648 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i32 [[CONV1_I]], i32 [[XOR_I]] ; CHECK-NEXT: call void @use1(i1 [[CMP_NOT_I]]) ; CHECK-NEXT: ret i32 [[COND_I]] ; %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i call void @use1(i1 %cmp.not.i) ret i32 %cond.i } define i32 @oneuseboth(i64 %add) { ; CHECK-LABEL: @oneuseboth( ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i64 [[ADD:%.*]] to i32 ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD]], 2147483648 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], 4294967296 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i64 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP2]], i32 2147483647, i32 -2147483648 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i32 [[CONV1_I]], i32 [[XOR_I]] ; CHECK-NEXT: call void @use(i32 [[XOR_I]]) ; CHECK-NEXT: call void @use(i32 [[CONV1_I]]) ; CHECK-NEXT: ret i32 [[COND_I]] ; %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i call void @use(i32 %xor.i) call void @use(i32 %conv1.i) ret i32 %cond.i } define i32 @oneusethree(i64 %add) { ; CHECK-LABEL: @oneusethree( ; CHECK-NEXT: [[CONV1_I:%.*]] = trunc i64 [[ADD:%.*]] to i32 ; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[ADD]], 2147483648 ; CHECK-NEXT: [[CMP_NOT_I:%.*]] = icmp ult i64 [[TMP1]], 4294967296 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i64 [[ADD]], -1 ; CHECK-NEXT: [[XOR_I:%.*]] = select i1 [[TMP2]], i32 2147483647, i32 -2147483648 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_NOT_I]], i32 [[CONV1_I]], i32 [[XOR_I]] ; CHECK-NEXT: call void @use(i32 [[XOR_I]]) ; CHECK-NEXT: call void @use(i32 [[CONV1_I]]) ; CHECK-NEXT: call void @use1(i1 [[CMP_NOT_I]]) ; CHECK-NEXT: ret i32 [[COND_I]] ; %sh = lshr i64 %add, 32 %conv.i = trunc i64 %sh to i32 %conv1.i = trunc i64 %add to i32 %shr2.i = ashr i32 %conv1.i, 31 %cmp.not.i = icmp eq i32 %shr2.i, %conv.i %shr4.i = ashr i64 %add, 63 %conv5.i = trunc i64 %shr4.i to i32 %xor.i = xor i32 %conv5.i, 2147483647 %cond.i = select i1 %cmp.not.i, i32 %conv1.i, i32 %xor.i call void @use(i32 %xor.i) call void @use(i32 %conv1.i) call void @use1(i1 %cmp.not.i) ret i32 %cond.i } define i16 @differentconsts_usetrunc(i32 %x, i16 %replacement_low, i16 %replacement_high) { ; CHECK-LABEL: @differentconsts_usetrunc( ; CHECK-NEXT: [[T0:%.*]] = icmp slt i32 [[X:%.*]], 128 ; CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i16 256, i16 -1 ; CHECK-NEXT: [[T2:%.*]] = add i32 [[X]], 16 ; CHECK-NEXT: [[T3:%.*]] = icmp ult i32 [[T2]], 144 ; CHECK-NEXT: [[T4:%.*]] = trunc i32 [[X]] to i16 ; CHECK-NEXT: [[R:%.*]] = select i1 [[T3]], i16 [[T4]], i16 [[T1]] ; CHECK-NEXT: call void @use16(i16 [[T4]]) ; CHECK-NEXT: ret i16 [[R]] ; %t0 = icmp slt i32 %x, 128 %t1 = select i1 %t0, i16 256, i16 65535 %t2 = add i32 %x, 16 %t3 = icmp ult i32 %t2, 144 %t4 = trunc i32 %x to i16 %r = select i1 %t3, i16 %t4, i16 %t1 call void @use16(i16 %t4) ret i16 %r } define i16 @differentconsts_useadd(i32 %x, i16 %replacement_low, i16 %replacement_high) { ; CHECK-LABEL: @differentconsts_useadd( ; CHECK-NEXT: [[T2:%.*]] = add i32 [[X:%.*]], 16 ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[X]], -16 ; CHECK-NEXT: [[TMP2:%.*]] = icmp sgt i32 [[X]], 127 ; CHECK-NEXT: [[TMP3:%.*]] = trunc i32 [[X]] to i16 ; CHECK-NEXT: [[TMP4:%.*]] = select i1 [[TMP1]], i16 256, i16 [[TMP3]] ; CHECK-NEXT: [[TMP5:%.*]] = select i1 [[TMP2]], i16 -1, i16 [[TMP4]] ; CHECK-NEXT: call void @use(i32 [[T2]]) ; CHECK-NEXT: ret i16 [[TMP5]] ; %t0 = icmp slt i32 %x, 128 %t1 = select i1 %t0, i16 256, i16 65535 %t2 = add i32 %x, 16 %t3 = icmp ult i32 %t2, 144 %t4 = trunc i32 %x to i16 %r = select i1 %t3, i16 %t4, i16 %t1 call void @use(i32 %t2) ret i16 %r } define i16 @differentconsts_useaddtrunc(i32 %x, i16 %replacement_low, i16 %replacement_high) { ; CHECK-LABEL: @differentconsts_useaddtrunc( ; CHECK-NEXT: [[T0:%.*]] = icmp slt i32 [[X:%.*]], 128 ; CHECK-NEXT: [[T1:%.*]] = select i1 [[T0]], i16 256, i16 -1 ; CHECK-NEXT: [[T2:%.*]] = add i32 [[X]], 16 ; CHECK-NEXT: [[T3:%.*]] = icmp ult i32 [[T2]], 144 ; CHECK-NEXT: [[T4:%.*]] = trunc i32 [[X]] to i16 ; CHECK-NEXT: [[R:%.*]] = select i1 [[T3]], i16 [[T4]], i16 [[T1]] ; CHECK-NEXT: call void @use16(i16 [[T4]]) ; CHECK-NEXT: call void @use(i32 [[T2]]) ; CHECK-NEXT: ret i16 [[R]] ; %t0 = icmp slt i32 %x, 128 %t1 = select i1 %t0, i16 256, i16 65535 %t2 = add i32 %x, 16 %t3 = icmp ult i32 %t2, 144 %t4 = trunc i32 %x to i16 %r = select i1 %t3, i16 %t4, i16 %t1 call void @use16(i16 %t4) call void @use(i32 %t2) ret i16 %r } define i8 @C0zero(i8 %X, i8 %y, i8 %z) { ; CHECK-LABEL: @C0zero( ; CHECK-NEXT: [[C:%.*]] = icmp slt i8 [[X:%.*]], -10 ; CHECK-NEXT: [[F:%.*]] = select i1 [[C]], i8 [[Y:%.*]], i8 [[Z:%.*]] ; CHECK-NEXT: ret i8 [[F]] ; %a = add i8 %X, 10 %cmp = icmp ult i8 %a, 0 %c = icmp slt i8 %X, -10 %f = select i1 %c, i8 %y, i8 %z %r = select i1 %cmp, i8 %X, i8 %f ret i8 %r } define <2 x i8> @C0zeroV(<2 x i8> %X, <2 x i8> %y, <2 x i8> %z) { ; CHECK-LABEL: @C0zeroV( ; CHECK-NEXT: [[C:%.*]] = icmp slt <2 x i8> [[X:%.*]], <i8 -10, i8 -10> ; CHECK-NEXT: [[F:%.*]] = select <2 x i1> [[C]], <2 x i8> [[Y:%.*]], <2 x i8> [[Z:%.*]] ; CHECK-NEXT: ret <2 x i8> [[F]] ; %a = add <2 x i8> %X, <i8 10, i8 10> %cmp = icmp ult <2 x i8> %a, zeroinitializer %c = icmp slt <2 x i8> %X, <i8 -10, i8 -10> %f = select <2 x i1> %c, <2 x i8> %y, <2 x i8> %z %r = select <2 x i1> %cmp, <2 x i8> %X, <2 x i8> %f ret <2 x i8> %r } define <2 x i8> @C0zeroVu(<2 x i8> %X, <2 x i8> %y, <2 x i8> %z) { ; CHECK-LABEL: @C0zeroVu( ; CHECK-NEXT: [[A:%.*]] = add <2 x i8> [[X:%.*]], <i8 10, i8 10> ; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i8> [[A]], <i8 0, i8 10> ; CHECK-NEXT: [[C:%.*]] = icmp slt <2 x i8> [[X]], <i8 -10, i8 -10> ; CHECK-NEXT: [[F:%.*]] = select <2 x i1> [[C]], <2 x i8> [[Y:%.*]], <2 x i8> [[Z:%.*]] ; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[CMP]], <2 x i8> [[X]], <2 x i8> [[F]] ; CHECK-NEXT: ret <2 x i8> [[R]] ; %a = add <2 x i8> %X, <i8 10, i8 10> %cmp = icmp ult <2 x i8> %a, <i8 0, i8 10> %c = icmp slt <2 x i8> %X, <i8 -10, i8 -10> %f = select <2 x i1> %c, <2 x i8> %y, <2 x i8> %z %r = select <2 x i1> %cmp, <2 x i8> %X, <2 x i8> %f ret <2 x i8> %r } define i8 @f(i32 %value, i8 %call.i) { ; CHECK-LABEL: @f( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP_I:%.*]] = icmp slt i32 [[VALUE:%.*]], 0 ; CHECK-NEXT: [[COND_I:%.*]] = select i1 [[CMP_I]], i8 [[CALL_I:%.*]], i8 0 ; CHECK-NEXT: [[CMP_I_I:%.*]] = icmp ult i32 [[VALUE]], 256 ; CHECK-NEXT: [[CONV4:%.*]] = trunc i32 [[VALUE]] to i8 ; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP_I_I]], i8 [[CONV4]], i8 [[COND_I]] ; CHECK-NEXT: ret i8 [[COND]] ; entry: %cmp.i = icmp slt i32 %value, 0 %cond.i = select i1 %cmp.i, i8 %call.i, i8 0 %cmp.i.i = icmp ult i32 %value, 256 %conv4 = trunc i32 %value to i8 %cond = select i1 %cmp.i.i, i8 %conv4, i8 %cond.i ret i8 %cond }