%B = icmp ne i64 bitcast (<2 x i32> <i32 1, i32 -1> to i64), %S
ret i1 %B
; CHECK: @test12
-; CHECK-NEXT: %B = select i1
-; CHECK-NEXT: ret i1 %B
+; CHECK-NEXT: = xor i1 %A, true
+; CHECK-NEXT: ret i1
}
; PR6481
; PR9343 #1
; CHECK: @test39
-; CHECK %B = icmp eq i32 %X, 0
+; CHECK: %B = icmp eq i32 %X, 0
define i1 @test39(i32 %X, i32 %Y) {
%A = ashr exact i32 %X, %Y
%B = icmp eq i32 %A, 0
%cmp = icmp ult <2 x i32> %tmp11, <i32 4, i32 4>
ret <2 x i1> %cmp
}
+
+; PR9343 #7
+; CHECK: @test50
+; CHECK: ret i1 true
+define i1 @test50(i16 %X, i32 %Y) {
+ %A = zext i16 %X to i32
+ %B = srem i32 %A, %Y
+ %C = icmp sgt i32 %B, -1
+ ret i1 %C
+}
+
+; CHECK: @test51
+; CHECK: ret i1 %C
+define i1 @test51(i32 %X, i32 %Y) {
+ %A = and i32 %X, 2147483648
+ %B = srem i32 %A, %Y
+ %C = icmp sgt i32 %B, -1
+ ret i1 %C
+}
+
+; CHECK: @test52
+; CHECK-NEXT: and i32 %x1, 16711935
+; CHECK-NEXT: icmp eq i32 {{.*}}, 4980863
+; CHECK-NEXT: ret i1
+define i1 @test52(i32 %x1) nounwind {
+ %conv = and i32 %x1, 255
+ %cmp = icmp eq i32 %conv, 127
+ %tmp2 = lshr i32 %x1, 16
+ %tmp3 = trunc i32 %tmp2 to i8
+ %cmp15 = icmp eq i8 %tmp3, 76
+
+ %A = and i1 %cmp, %cmp15
+ ret i1 %A
+}
+
+; PR9838
+; CHECK: @test53
+; CHECK-NEXT: ashr exact
+; CHECK-NEXT: ashr
+; CHECK-NEXT: icmp
+define i1 @test53(i32 %a, i32 %b) nounwind {
+ %x = ashr exact i32 %a, 30
+ %y = ashr i32 %b, 30
+ %z = icmp eq i32 %x, %y
+ ret i1 %z
+}
+
+; CHECK: @test54
+; CHECK-NEXT: %and = and i8 %a, -64
+; CHECK-NEXT: icmp eq i8 %and, -128
+define i1 @test54(i8 %a) nounwind {
+ %ext = zext i8 %a to i32
+ %and = and i32 %ext, 192
+ %ret = icmp eq i32 %and, 128
+ ret i1 %ret
+}
+
+; CHECK: @test55
+; CHECK-NEXT: icmp eq i32 %a, -123
+define i1 @test55(i32 %a) {
+ %sub = sub i32 0, %a
+ %cmp = icmp eq i32 %sub, 123
+ ret i1 %cmp
+}
+
+; CHECK: @test56
+; CHECK-NEXT: icmp eq i32 %a, -113
+define i1 @test56(i32 %a) {
+ %sub = sub i32 10, %a
+ %cmp = icmp eq i32 %sub, 123
+ ret i1 %cmp
+}
+
+; PR10267 Don't make icmps more expensive when no other inst is subsumed.
+declare void @foo(i32)
+; CHECK: @test57
+; CHECK: %and = and i32 %a, -2
+; CHECK: %cmp = icmp ne i32 %and, 0
+define i1 @test57(i32 %a) {
+ %and = and i32 %a, -2
+ %cmp = icmp ne i32 %and, 0
+ call void @foo(i32 %and)
+ ret i1 %cmp
+}
+
+; rdar://problem/10482509
+; CHECK: @cmpabs1
+; CHECK-NEXT: icmp ne
+define zeroext i1 @cmpabs1(i64 %val) {
+ %sub = sub nsw i64 0, %val
+ %cmp = icmp slt i64 %val, 0
+ %sub.val = select i1 %cmp, i64 %sub, i64 %val
+ %tobool = icmp ne i64 %sub.val, 0
+ ret i1 %tobool
+}
+
+; CHECK: @cmpabs2
+; CHECK-NEXT: icmp ne
+define zeroext i1 @cmpabs2(i64 %val) {
+ %sub = sub nsw i64 0, %val
+ %cmp = icmp slt i64 %val, 0
+ %sub.val = select i1 %cmp, i64 %val, i64 %sub
+ %tobool = icmp ne i64 %sub.val, 0
+ ret i1 %tobool
+}
+
+; CHECK: @test58
+; CHECK-NEXT: call i32 @test58_d(i64 36029346783166592)
+define void @test58() nounwind {
+ %cast = bitcast <1 x i64> <i64 36029346783166592> to i64
+ %call = call i32 @test58_d( i64 %cast) nounwind
+ ret void
+}
+declare i32 @test58_d(i64)
+
+define i1 @test59(i8* %foo) {
+ %bit = bitcast i8* %foo to i32*
+ %gep1 = getelementptr inbounds i32* %bit, i64 2
+ %gep2 = getelementptr inbounds 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) nounwind
+ ret i1 %cmp
+; CHECK: @test59
+; CHECK: ret i1 true
+}
+
+define i1 @test60(i8* %foo, i64 %i, i64 %j) {
+ %bit = bitcast i8* %foo to i32*
+ %gep1 = getelementptr inbounds i32* %bit, i64 %i
+ %gep2 = getelementptr inbounds i8* %foo, i64 %j
+ %cast1 = bitcast i32* %gep1 to i8*
+ %cmp = icmp ult i8* %cast1, %gep2
+ ret i1 %cmp
+; CHECK: @test60
+; CHECK-NEXT: %gep1.idx = shl nuw i64 %i, 2
+; CHECK-NEXT: icmp slt i64 %gep1.idx, %j
+; CHECK-NEXT: ret i1
+}
+
+define i1 @test61(i8* %foo, i64 %i, i64 %j) {
+ %bit = bitcast i8* %foo to i32*
+ %gep1 = getelementptr i32* %bit, i64 %i
+ %gep2 = getelementptr 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.
+; CHECK: @test61
+; CHECK: icmp ult i8* %cast1, %gep2
+; CHECK-NEXT: ret i1
+}
+
+define i1 @test62(i8* %a) {
+ %arrayidx1 = getelementptr inbounds i8* %a, i64 1
+ %arrayidx2 = getelementptr inbounds i8* %a, i64 10
+ %cmp = icmp slt i8* %arrayidx1, %arrayidx2
+ ret i1 %cmp
+; CHECK: @test62
+; CHECK-NEXT: ret i1 true
+}
+
+define i1 @test63(i8 %a, i32 %b) nounwind {
+ %z = zext i8 %a to i32
+ %t = and i32 %b, 255
+ %c = icmp eq i32 %z, %t
+ ret i1 %c
+; CHECK: @test63
+; CHECK-NEXT: %1 = trunc i32 %b to i8
+; CHECK-NEXT: %c = icmp eq i8 %1, %a
+; CHECK-NEXT: ret i1 %c
+}
+
+define i1 @test64(i8 %a, i32 %b) nounwind {
+ %t = and i32 %b, 255
+ %z = zext i8 %a to i32
+ %c = icmp eq i32 %t, %z
+ ret i1 %c
+; CHECK: @test64
+; CHECK-NEXT: %1 = trunc i32 %b to i8
+; CHECK-NEXT: %c = icmp eq i8 %1, %a
+; CHECK-NEXT: ret i1 %c
+}
+
+define i1 @test65(i64 %A, i64 %B) {
+ %s1 = add i64 %A, %B
+ %s2 = add i64 %A, %B
+ %cmp = icmp eq i64 %s1, %s2
+; CHECK: @test65
+; CHECK-NEXT: ret i1 true
+ ret i1 %cmp
+}
+
+define i1 @test66(i64 %A, i64 %B) {
+ %s1 = add i64 %A, %B
+ %s2 = add i64 %B, %A
+ %cmp = icmp eq i64 %s1, %s2
+; CHECK: @test66
+; CHECK-NEXT: ret i1 true
+ ret i1 %cmp
+}
+
+; CHECK: @test67
+; CHECK: %and = and i32 %x, 96
+; CHECK: %cmp = icmp ne i32 %and, 0
+define i1 @test67(i32 %x) nounwind uwtable {
+ %and = and i32 %x, 127
+ %cmp = icmp sgt i32 %and, 31
+ ret i1 %cmp
+}
+
+; CHECK: @test68
+; CHECK: %cmp = icmp ugt i32 %and, 30
+define i1 @test68(i32 %x) nounwind uwtable {
+ %and = and i32 %x, 127
+ %cmp = icmp sgt i32 %and, 30
+ ret i1 %cmp
+}
projects / oota-llvm.git / blobdiff