; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instcombine -S | FileCheck %s define i32 @foo(i32 %a, i32 %b, i32 %c, i32 %d) { ; CHECK-LABEL: @foo( ; CHECK-NEXT: [[E:%.*]] = icmp slt i32 %a, %b ; CHECK-NEXT: [[J:%.*]] = select i1 [[E]], i32 %c, i32 %d ; CHECK-NEXT: ret i32 [[J]] ; %e = icmp slt i32 %a, %b %f = sext i1 %e to i32 %g = and i32 %c, %f %h = xor i32 %f, -1 %i = and i32 %d, %h %j = or i32 %g, %i ret i32 %j } define i32 @bar(i32 %a, i32 %b, i32 %c, i32 %d) { ; CHECK-LABEL: @bar( ; CHECK-NEXT: [[E:%.*]] = icmp slt i32 %a, %b ; CHECK-NEXT: [[J:%.*]] = select i1 [[E]], i32 %c, i32 %d ; CHECK-NEXT: ret i32 [[J]] ; %e = icmp slt i32 %a, %b %f = sext i1 %e to i32 %g = and i32 %c, %f %h = xor i32 %f, -1 %i = and i32 %d, %h %j = or i32 %i, %g ret i32 %j } define i32 @goo(i32 %a, i32 %b, i32 %c, i32 %d) { ; CHECK-LABEL: @goo( ; CHECK-NEXT: [[T0:%.*]] = icmp slt i32 %a, %b ; CHECK-NEXT: [[T3:%.*]] = select i1 [[T0]], i32 %c, i32 %d ; CHECK-NEXT: ret i32 [[T3]] ; %t0 = icmp slt i32 %a, %b %iftmp.0.0 = select i1 %t0, i32 -1, i32 0 %t1 = and i32 %iftmp.0.0, %c %not = xor i32 %iftmp.0.0, -1 %t2 = and i32 %not, %d %t3 = or i32 %t1, %t2 ret i32 %t3 } define i32 @poo(i32 %a, i32 %b, i32 %c, i32 %d) { ; CHECK-LABEL: @poo( ; CHECK-NEXT: [[T0:%.*]] = icmp slt i32 %a, %b ; CHECK-NEXT: [[T3:%.*]] = select i1 [[T0]], i32 %c, i32 %d ; CHECK-NEXT: ret i32 [[T3]] ; %t0 = icmp slt i32 %a, %b %iftmp.0.0 = select i1 %t0, i32 -1, i32 0 %t1 = and i32 %iftmp.0.0, %c %iftmp = select i1 %t0, i32 0, i32 -1 %t2 = and i32 %iftmp, %d %t3 = or i32 %t1, %t2 ret i32 %t3 } define i32 @par(i32 %a, i32 %b, i32 %c, i32 %d) { ; CHECK-LABEL: @par( ; CHECK-NEXT: [[T0:%.*]] = icmp slt i32 %a, %b ; CHECK-NEXT: [[T3:%.*]] = select i1 [[T0]], i32 %c, i32 %d ; CHECK-NEXT: ret i32 [[T3]] ; %t0 = icmp slt i32 %a, %b %iftmp.1.0 = select i1 %t0, i32 -1, i32 0 %t1 = and i32 %iftmp.1.0, %c %not = xor i32 %iftmp.1.0, -1 %t2 = and i32 %not, %d %t3 = or i32 %t1, %t2 ret i32 %t3 } ; In the following tests, verify that a bitcast doesn't get in the way ; of a select transform. These bitcasts are common in SSE/AVX and possibly ; other vector code because of canonicalization to i64 elements for vectors. define <2 x i64> @bitcast_select(<4 x i1> %cmp, <2 x i64> %a, <2 x i64> %b) { ; CHECK-LABEL: @bitcast_select( ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> %a to <4 x i32> ; CHECK-NEXT: [[TMP2:%.*]] = bitcast <2 x i64> %b to <4 x i32> ; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> %cmp, <4 x i32> [[TMP1]], <4 x i32> [[TMP2]] ; CHECK-NEXT: [[OR:%.*]] = bitcast <4 x i32> [[TMP3]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[OR]] ; %sext = sext <4 x i1> %cmp to <4 x i32> %t2 = bitcast <4 x i32> %sext to <2 x i64> %and = and <2 x i64> %t2, %a %neg = xor <4 x i32> %sext, %neg2 = bitcast <4 x i32> %neg to <2 x i64> %and2 = and <2 x i64> %neg2, %b %or = or <2 x i64> %and, %and2 ret <2 x i64> %or } define <2 x i64> @bitcast_select_swap_or_ops(<4 x i1> %cmp, <2 x i64> %a, <2 x i64> %b) { ; CHECK-LABEL: @bitcast_select_swap_or_ops( ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> %a to <4 x i32> ; CHECK-NEXT: [[TMP2:%.*]] = bitcast <2 x i64> %b to <4 x i32> ; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> %cmp, <4 x i32> [[TMP1]], <4 x i32> [[TMP2]] ; CHECK-NEXT: [[OR:%.*]] = bitcast <4 x i32> [[TMP3]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[OR]] ; %sext = sext <4 x i1> %cmp to <4 x i32> %t2 = bitcast <4 x i32> %sext to <2 x i64> %and = and <2 x i64> %t2, %a %neg = xor <4 x i32> %sext, %neg2 = bitcast <4 x i32> %neg to <2 x i64> %and2 = and <2 x i64> %neg2, %b %or = or <2 x i64> %and2, %and ret <2 x i64> %or } define <2 x i64> @bitcast_select_swap_and_ops(<4 x i1> %cmp, <2 x i64> %a, <2 x i64> %b) { ; CHECK-LABEL: @bitcast_select_swap_and_ops( ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> %a to <4 x i32> ; CHECK-NEXT: [[TMP2:%.*]] = bitcast <2 x i64> %b to <4 x i32> ; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> %cmp, <4 x i32> [[TMP1]], <4 x i32> [[TMP2]] ; CHECK-NEXT: [[OR:%.*]] = bitcast <4 x i32> [[TMP3]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[OR]] ; %sext = sext <4 x i1> %cmp to <4 x i32> %t2 = bitcast <4 x i32> %sext to <2 x i64> %and = and <2 x i64> %t2, %a %neg = xor <4 x i32> %sext, %neg2 = bitcast <4 x i32> %neg to <2 x i64> %and2 = and <2 x i64> %b, %neg2 %or = or <2 x i64> %and, %and2 ret <2 x i64> %or } define <2 x i64> @bitcast_select_swap_and_ops2(<4 x i1> %cmp, <2 x i64> %a, <2 x i64> %b) { ; CHECK-LABEL: @bitcast_select_swap_and_ops2( ; CHECK-NEXT: [[TMP1:%.*]] = bitcast <2 x i64> %a to <4 x i32> ; CHECK-NEXT: [[TMP2:%.*]] = bitcast <2 x i64> %b to <4 x i32> ; CHECK-NEXT: [[TMP3:%.*]] = select <4 x i1> %cmp, <4 x i32> [[TMP1]], <4 x i32> [[TMP2]] ; CHECK-NEXT: [[OR:%.*]] = bitcast <4 x i32> [[TMP3]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[OR]] ; %sext = sext <4 x i1> %cmp to <4 x i32> %t2 = bitcast <4 x i32> %sext to <2 x i64> %and = and <2 x i64> %a, %t2 %neg = xor <4 x i32> %sext, %neg2 = bitcast <4 x i32> %neg to <2 x i64> %and2 = and <2 x i64> %neg2, %b %or = or <2 x i64> %and, %and2 ret <2 x i64> %or }