| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| target datalayout = "e-p:40:64:64:32-p1:16:16:16-p2:32:32:32-p3:64:64:64-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 i32 @test58_d(i64 ) |
| |
| define i1 @test59(i8* %foo) { |
| ; CHECK-LABEL: @test59( |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds i8, i8* [[FOO:%.*]], i32 8 |
| ; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint i8* [[GEP1]] to i32 |
| ; CHECK-NEXT: [[USE:%.*]] = zext i32 [[TMP1]] to i64 |
| ; CHECK-NEXT: [[CALL:%.*]] = call i32 @test58_d(i64 [[USE]]) |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %bit = bitcast i8* %foo to i32* |
| %gep1 = getelementptr inbounds i32, i32* %bit, i64 2 |
| %gep2 = getelementptr inbounds i8, i8* %foo, i64 10 |
| %cast1 = bitcast i32* %gep1 to i8* |
| %cmp = icmp ult i8* %cast1, %gep2 |
| %use = ptrtoint i8* %cast1 to i64 |
| %call = call i32 @test58_d(i64 %use) |
| ret i1 %cmp |
| } |
| |
| define i1 @test59_as1(i8 addrspace(1)* %foo) { |
| ; CHECK-LABEL: @test59_as1( |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds i8, i8 addrspace(1)* [[FOO:%.*]], i16 8 |
| ; CHECK-NEXT: [[TMP1:%.*]] = ptrtoint i8 addrspace(1)* [[GEP1]] to i16 |
| ; CHECK-NEXT: [[USE:%.*]] = zext i16 [[TMP1]] to i64 |
| ; CHECK-NEXT: [[CALL:%.*]] = call i32 @test58_d(i64 [[USE]]) |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)* |
| %gep1 = getelementptr inbounds i32, i32 addrspace(1)* %bit, i64 2 |
| %gep2 = getelementptr inbounds i8, i8 addrspace(1)* %foo, i64 10 |
| %cast1 = bitcast i32 addrspace(1)* %gep1 to i8 addrspace(1)* |
| %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2 |
| %use = ptrtoint i8 addrspace(1)* %cast1 to i64 |
| %call = call i32 @test58_d(i64 %use) |
| ret i1 %cmp |
| } |
| |
| define i1 @test60(i8* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test60( |
| ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[I:%.*]] to i32 |
| ; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[J:%.*]] to i32 |
| ; CHECK-NEXT: [[GEP1_IDX:%.*]] = shl nuw i32 [[TMP1]], 2 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp slt i32 [[GEP1_IDX]], [[TMP2]] |
| ; CHECK-NEXT: ret i1 [[TMP3]] |
| ; |
| %bit = bitcast i8* %foo to i32* |
| %gep1 = getelementptr inbounds i32, i32* %bit, i64 %i |
| %gep2 = getelementptr inbounds i8, i8* %foo, i64 %j |
| %cast1 = bitcast i32* %gep1 to i8* |
| %cmp = icmp ult i8* %cast1, %gep2 |
| ret i1 %cmp |
| } |
| |
| define i1 @test60_as1(i8 addrspace(1)* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test60_as1( |
| ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[I:%.*]] to i16 |
| ; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[J:%.*]] to i16 |
| ; CHECK-NEXT: [[GEP1_IDX:%.*]] = shl nuw i16 [[TMP1]], 2 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp slt i16 [[GEP1_IDX]], [[TMP2]] |
| ; CHECK-NEXT: ret i1 [[TMP3]] |
| ; |
| %bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)* |
| %gep1 = getelementptr inbounds i32, i32 addrspace(1)* %bit, i64 %i |
| %gep2 = getelementptr inbounds i8, i8 addrspace(1)* %foo, i64 %j |
| %cast1 = bitcast i32 addrspace(1)* %gep1 to i8 addrspace(1)* |
| %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2 |
| ret i1 %cmp |
| } |
| |
| ; Same as test60, but look through an addrspacecast instead of a |
| ; bitcast. This uses the same sized addrspace. |
| define i1 @test60_addrspacecast(i8* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test60_addrspacecast( |
| ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[J:%.*]] to i32 |
| ; CHECK-NEXT: [[I_TR:%.*]] = trunc i64 [[I:%.*]] to i32 |
| ; CHECK-NEXT: [[TMP2:%.*]] = shl i32 [[I_TR]], 2 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp slt i32 [[TMP2]], [[TMP1]] |
| ; CHECK-NEXT: ret i1 [[TMP3]] |
| ; |
| %bit = addrspacecast i8* %foo to i32 addrspace(3)* |
| %gep1 = getelementptr inbounds i32, i32 addrspace(3)* %bit, i64 %i |
| %gep2 = getelementptr inbounds i8, i8* %foo, i64 %j |
| %cast1 = addrspacecast i32 addrspace(3)* %gep1 to i8* |
| %cmp = icmp ult i8* %cast1, %gep2 |
| ret i1 %cmp |
| } |
| |
| define i1 @test60_addrspacecast_smaller(i8* %foo, i16 %i, i64 %j) { |
| ; CHECK-LABEL: @test60_addrspacecast_smaller( |
| ; CHECK-NEXT: [[GEP1_IDX:%.*]] = shl nuw i16 [[I:%.*]], 2 |
| ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[J:%.*]] to i16 |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i16 [[GEP1_IDX]], [[TMP1]] |
| ; CHECK-NEXT: ret i1 [[TMP2]] |
| ; |
| %bit = addrspacecast i8* %foo to i32 addrspace(1)* |
| %gep1 = getelementptr inbounds i32, i32 addrspace(1)* %bit, i16 %i |
| %gep2 = getelementptr inbounds i8, i8* %foo, i64 %j |
| %cast1 = addrspacecast i32 addrspace(1)* %gep1 to i8* |
| %cmp = icmp ult i8* %cast1, %gep2 |
| ret i1 %cmp |
| } |
| |
| define i1 @test60_addrspacecast_larger(i8 addrspace(1)* %foo, i32 %i, i16 %j) { |
| ; CHECK-LABEL: @test60_addrspacecast_larger( |
| ; CHECK-NEXT: [[I_TR:%.*]] = trunc i32 [[I:%.*]] to i16 |
| ; CHECK-NEXT: [[TMP1:%.*]] = shl i16 [[I_TR]], 2 |
| ; CHECK-NEXT: [[TMP2:%.*]] = icmp slt i16 [[TMP1]], [[J:%.*]] |
| ; CHECK-NEXT: ret i1 [[TMP2]] |
| ; |
| %bit = addrspacecast i8 addrspace(1)* %foo to i32 addrspace(2)* |
| %gep1 = getelementptr inbounds i32, i32 addrspace(2)* %bit, i32 %i |
| %gep2 = getelementptr inbounds i8, i8 addrspace(1)* %foo, i16 %j |
| %cast1 = addrspacecast i32 addrspace(2)* %gep1 to i8 addrspace(1)* |
| %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2 |
| ret i1 %cmp |
| } |
| |
| define i1 @test61(i8* %foo, i64 %i, i64 %j) { |
| ; CHECK-LABEL: @test61( |
| ; CHECK-NEXT: [[BIT:%.*]] = bitcast i8* [[FOO:%.*]] to i32* |
| ; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[I:%.*]] to i32 |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr i32, i32* [[BIT]], i32 [[TMP1]] |
| ; CHECK-NEXT: [[TMP2:%.*]] = trunc i64 [[J:%.*]] to i32 |
| ; CHECK-NEXT: [[GEP2:%.*]] = getelementptr i8, i8* [[FOO]], i32 [[TMP2]] |
| ; CHECK-NEXT: [[CAST1:%.*]] = bitcast i32* [[GEP1]] to i8* |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8* [[GEP2]], [[CAST1]] |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %bit = bitcast i8* %foo to i32* |
| %gep1 = getelementptr i32, i32* %bit, i64 %i |
| %gep2 = getelementptr i8, i8* %foo, i64 %j |
| %cast1 = bitcast i32* %gep1 to i8* |
| %cmp = icmp ult i8* %cast1, %gep2 |
| ret i1 %cmp |
| ; Don't transform non-inbounds GEPs. |
| } |
| |
| define i1 @test61_as1(i8 addrspace(1)* %foo, i16 %i, i16 %j) { |
| ; CHECK-LABEL: @test61_as1( |
| ; CHECK-NEXT: [[BIT:%.*]] = bitcast i8 addrspace(1)* [[FOO:%.*]] to i32 addrspace(1)* |
| ; CHECK-NEXT: [[GEP1:%.*]] = getelementptr i32, i32 addrspace(1)* [[BIT]], i16 [[I:%.*]] |
| ; CHECK-NEXT: [[GEP2:%.*]] = getelementptr i8, i8 addrspace(1)* [[FOO]], i16 [[J:%.*]] |
| ; CHECK-NEXT: [[CAST1:%.*]] = bitcast i32 addrspace(1)* [[GEP1]] to i8 addrspace(1)* |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 addrspace(1)* [[GEP2]], [[CAST1]] |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %bit = bitcast i8 addrspace(1)* %foo to i32 addrspace(1)* |
| %gep1 = getelementptr i32, i32 addrspace(1)* %bit, i16 %i |
| %gep2 = getelementptr i8, i8 addrspace(1)* %foo, i16 %j |
| %cast1 = bitcast i32 addrspace(1)* %gep1 to i8 addrspace(1)* |
| %cmp = icmp ult i8 addrspace(1)* %cast1, %gep2 |
| ret i1 %cmp |
| ; Don't transform non-inbounds GEPs. |
| } |
| |
| define i1 @test62(i8* %a) { |
| ; CHECK-LABEL: @test62( |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %arrayidx1 = getelementptr inbounds i8, i8* %a, i64 1 |
| %arrayidx2 = getelementptr inbounds i8, i8* %a, i64 10 |
| %cmp = icmp slt i8* %arrayidx1, %arrayidx2 |
| ret i1 %cmp |
| } |
| |
| define i1 @test62_as1(i8 addrspace(1)* %a) { |
| ; CHECK-LABEL: @test62_as1( |
| ; CHECK-NEXT: ret i1 true |
| ; |
| %arrayidx1 = getelementptr inbounds i8, i8 addrspace(1)* %a, i64 1 |
| %arrayidx2 = getelementptr inbounds i8, i8 addrspace(1)* %a, i64 10 |
| %cmp = icmp slt i8 addrspace(1)* %arrayidx1, %arrayidx2 |
| ret i1 %cmp |
| } |
| |
| |
| ; Variation of the above with an ashr |
| define i1 @icmp_and_ashr_multiuse(i32 %X) { |
| ; CHECK-LABEL: @icmp_and_ashr_multiuse( |
| ; CHECK-NEXT: [[AND:%.*]] = and i32 [[X:%.*]], 240 |
| ; CHECK-NEXT: [[AND2:%.*]] = and i32 [[X]], 496 |
| ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[AND]], 224 |
| ; CHECK-NEXT: [[TOBOOL2:%.*]] = icmp ne i32 [[AND2]], 432 |
| ; CHECK-NEXT: [[AND3:%.*]] = and i1 [[TOBOOL]], [[TOBOOL2]] |
| ; CHECK-NEXT: ret i1 [[AND3]] |
| ; |
| %shr = ashr i32 %X, 4 |
| %and = and i32 %shr, 15 |
| %and2 = and i32 %shr, 31 ; second use of the shift |
| %tobool = icmp ne i32 %and, 14 |
| %tobool2 = icmp ne i32 %and2, 27 |
| %and3 = and i1 %tobool, %tobool2 |
| ret i1 %and3 |
| } |
| |
| define i1 @icmp_lshr_and_overshift(i8 %X) { |
| ; CHECK-LABEL: @icmp_lshr_and_overshift( |
| ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ugt i8 [[X:%.*]], 31 |
| ; CHECK-NEXT: ret i1 [[TOBOOL]] |
| ; |
| %shr = lshr i8 %X, 5 |
| %and = and i8 %shr, 15 |
| %tobool = icmp ne i8 %and, 0 |
| ret i1 %tobool |
| } |
| |
| ; We shouldn't simplify this because the and uses bits that are shifted in. |
| define i1 @icmp_ashr_and_overshift(i8 %X) { |
| ; CHECK-LABEL: @icmp_ashr_and_overshift( |
| ; CHECK-NEXT: [[SHR:%.*]] = ashr i8 [[X:%.*]], 5 |
| ; CHECK-NEXT: [[AND:%.*]] = and i8 [[SHR]], 15 |
| ; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i8 [[AND]], 0 |
| ; CHECK-NEXT: ret i1 [[TOBOOL]] |
| ; |
| %shr = ashr i8 %X, 5 |
| %and = and i8 %shr, 15 |
| %tobool = icmp ne i8 %and, 0 |
| ret i1 %tobool |
| } |
| |
| ; PR16244 |
| define i1 @test71(i8* %x) { |
| ; CHECK-LABEL: @test71( |
| ; CHECK-NEXT: ret i1 false |
| ; |
| %a = getelementptr i8, i8* %x, i64 8 |
| %b = getelementptr inbounds i8, i8* %x, i64 8 |
| %c = icmp ugt i8* %a, %b |
| ret i1 %c |
| } |
| |
| define i1 @test71_as1(i8 addrspace(1)* %x) { |
| ; CHECK-LABEL: @test71_as1( |
| ; CHECK-NEXT: ret i1 false |
| ; |
| %a = getelementptr i8, i8 addrspace(1)* %x, i64 8 |
| %b = getelementptr inbounds i8, i8 addrspace(1)* %x, i64 8 |
| %c = icmp ugt i8 addrspace(1)* %a, %b |
| ret i1 %c |
| } |
| |