-; RUN: opt %s -instcombine -S | FileCheck %s
+; RUN: opt -instcombine -S < %s | FileCheck %s
%overflow.result = type {i8, i1}
declare %overflow.result @llvm.uadd.with.overflow.i8(i8, i8)
+declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32)
declare %overflow.result @llvm.umul.with.overflow.i8(i8, i8)
declare double @llvm.powi.f64(double, i32) nounwind readonly
-declare i32 @llvm.cttz.i32(i32) nounwind readnone
-declare i32 @llvm.ctlz.i32(i32) nounwind readnone
+declare i32 @llvm.cttz.i32(i32, i1) nounwind readnone
+declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone
declare i32 @llvm.ctpop.i32(i32) nounwind readnone
-declare i8 @llvm.ctlz.i8(i8) nounwind readnone
+declare i8 @llvm.ctlz.i8(i8, i1) nounwind readnone
define i8 @uaddtest1(i8 %A, i8 %B) {
%x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
%y = extractvalue %overflow.result %x, 0
ret i8 %y
-; CHECK: @uaddtest1
+; CHECK-LABEL: @uaddtest1(
; CHECK-NEXT: %y = add i8 %A, %B
; CHECK-NEXT: ret i8 %y
}
%z = extractvalue %overflow.result %x, 1
store i1 %z, i1* %overflowPtr
ret i8 %y
-; CHECK: @uaddtest2
+; CHECK-LABEL: @uaddtest2(
; CHECK-NEXT: %and.A = and i8 %A, 127
; CHECK-NEXT: %and.B = and i8 %B, 127
-; CHECK-NEXT: %1 = add nuw i8 %and.A, %and.B
+; CHECK-NEXT: %x = add nuw i8 %and.A, %and.B
; CHECK-NEXT: store i1 false, i1* %overflowPtr
-; CHECK-NEXT: ret i8 %1
+; CHECK-NEXT: ret i8 %x
}
define i8 @uaddtest3(i8 %A, i8 %B, i1* %overflowPtr) {
%z = extractvalue %overflow.result %x, 1
store i1 %z, i1* %overflowPtr
ret i8 %y
-; CHECK: @uaddtest3
+; CHECK-LABEL: @uaddtest3(
; CHECK-NEXT: %or.A = or i8 %A, -128
; CHECK-NEXT: %or.B = or i8 %B, -128
-; CHECK-NEXT: %1 = add i8 %or.A, %or.B
+; CHECK-NEXT: %x = add i8 %or.A, %or.B
; CHECK-NEXT: store i1 true, i1* %overflowPtr
-; CHECK-NEXT: ret i8 %1
+; CHECK-NEXT: ret i8 %x
}
define i8 @uaddtest4(i8 %A, i1* %overflowPtr) {
%z = extractvalue %overflow.result %x, 1
store i1 %z, i1* %overflowPtr
ret i8 %y
-; CHECK: @uaddtest4
+; CHECK-LABEL: @uaddtest4(
; CHECK-NEXT: ret i8 undef
}
%z = extractvalue %overflow.result %x, 1
store i1 %z, i1* %overflowPtr
ret i8 %y
-; CHECK: @uaddtest5
+; CHECK-LABEL: @uaddtest5(
; CHECK: ret i8 %A
}
+define i1 @uaddtest6(i8 %A, i8 %B) {
+ %x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %A, i8 -4)
+ %z = extractvalue %overflow.result %x, 1
+ ret i1 %z
+; CHECK-LABEL: @uaddtest6(
+; CHECK-NEXT: %z = icmp ugt i8 %A, 3
+; CHECK-NEXT: ret i1 %z
+}
+
+define i8 @uaddtest7(i8 %A, i8 %B) {
+ %x = call %overflow.result @llvm.uadd.with.overflow.i8(i8 %A, i8 %B)
+ %z = extractvalue %overflow.result %x, 0
+ ret i8 %z
+; CHECK-LABEL: @uaddtest7(
+; CHECK-NEXT: %z = add i8 %A, %B
+; CHECK-NEXT: ret i8 %z
+}
+
+; PR20194
+define { i32, i1 } @saddtest1(i8 %a, i8 %b) {
+ %A = sext i8 %a to i32
+ %B = sext i8 %b to i32
+ %x = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %A, i32 %B)
+ ret { i32, i1 } %x
+; CHECK-LABEL: @saddtest1
+; CHECK: %x = add nsw i32 %A, %B
+; CHECK-NEXT: %1 = insertvalue { i32, i1 } { i32 undef, i1 false }, i32 %x, 0
+; CHECK-NEXT: ret { i32, i1 } %1
+}
+
+
define i8 @umultest1(i8 %A, i1* %overflowPtr) {
%x = call %overflow.result @llvm.umul.with.overflow.i8(i8 0, i8 %A)
%y = extractvalue %overflow.result %x, 0
%z = extractvalue %overflow.result %x, 1
store i1 %z, i1* %overflowPtr
ret i8 %y
-; CHECK: @umultest1
+; CHECK-LABEL: @umultest1(
; CHECK-NEXT: store i1 false, i1* %overflowPtr
; CHECK-NEXT: ret i8 0
}
%z = extractvalue %overflow.result %x, 1
store i1 %z, i1* %overflowPtr
ret i8 %y
-; CHECK: @umultest2
+; CHECK-LABEL: @umultest2(
; CHECK-NEXT: store i1 false, i1* %overflowPtr
; CHECK-NEXT: ret i8 %A
}
+%ov.result.32 = type { i32, i1 }
+declare %ov.result.32 @llvm.umul.with.overflow.i32(i32, i32) nounwind readnone
+
+define i32 @umultest3(i32 %n) nounwind {
+ %shr = lshr i32 %n, 2
+ %mul = call %ov.result.32 @llvm.umul.with.overflow.i32(i32 %shr, i32 3)
+ %ov = extractvalue %ov.result.32 %mul, 1
+ %res = extractvalue %ov.result.32 %mul, 0
+ %ret = select i1 %ov, i32 -1, i32 %res
+ ret i32 %ret
+; CHECK-LABEL: @umultest3(
+; CHECK-NEXT: shr
+; CHECK-NEXT: mul nuw
+; CHECK-NEXT: ret
+}
+
+define i32 @umultest4(i32 %n) nounwind {
+ %shr = lshr i32 %n, 1
+ %mul = call %ov.result.32 @llvm.umul.with.overflow.i32(i32 %shr, i32 4)
+ %ov = extractvalue %ov.result.32 %mul, 1
+ %res = extractvalue %ov.result.32 %mul, 0
+ %ret = select i1 %ov, i32 -1, i32 %res
+ ret i32 %ret
+; CHECK-LABEL: @umultest4(
+; CHECK: umul.with.overflow
+}
+
define void @powi(double %V, double *%P) {
entry:
%A = tail call double @llvm.powi.f64(double %V, i32 -1) nounwind
- volatile store double %A, double* %P
+ store volatile double %A, double* %P
%B = tail call double @llvm.powi.f64(double %V, i32 0) nounwind
- volatile store double %B, double* %P
+ store volatile double %B, double* %P
%C = tail call double @llvm.powi.f64(double %V, i32 1) nounwind
- volatile store double %C, double* %P
+ store volatile double %C, double* %P
ret void
-; CHECK: @powi
+; CHECK-LABEL: @powi(
; CHECK: %A = fdiv double 1.0{{.*}}, %V
-; CHECK: volatile store double %A,
-; CHECK: volatile store double 1.0
-; CHECK: volatile store double %V
+; CHECK: store volatile double %A,
+; CHECK: store volatile double 1.0
+; CHECK: store volatile double %V
}
define i32 @cttz(i32 %a) {
entry:
%or = or i32 %a, 8
%and = and i32 %or, -8
- %count = tail call i32 @llvm.cttz.i32(i32 %and) nounwind readnone
+ %count = tail call i32 @llvm.cttz.i32(i32 %and, i1 true) nounwind readnone
ret i32 %count
-; CHECK: @cttz
+; CHECK-LABEL: @cttz(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i32 3
}
entry:
%or = or i8 %a, 32
%and = and i8 %or, 63
- %count = tail call i8 @llvm.ctlz.i8(i8 %and) nounwind readnone
+ %count = tail call i8 @llvm.ctlz.i8(i8 %and, i1 true) nounwind readnone
ret i8 %count
-; CHECK: @ctlz
+; CHECK-LABEL: @ctlz(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret i8 2
}
define void @cmp.simplify(i32 %a, i32 %b, i1* %c) {
entry:
- %lz = tail call i32 @llvm.ctlz.i32(i32 %a) nounwind readnone
+ %lz = tail call i32 @llvm.ctlz.i32(i32 %a, i1 false) nounwind readnone
%lz.cmp = icmp eq i32 %lz, 32
- volatile store i1 %lz.cmp, i1* %c
- %tz = tail call i32 @llvm.cttz.i32(i32 %a) nounwind readnone
+ store volatile i1 %lz.cmp, i1* %c
+ %tz = tail call i32 @llvm.cttz.i32(i32 %a, i1 false) nounwind readnone
%tz.cmp = icmp ne i32 %tz, 32
- volatile store i1 %tz.cmp, i1* %c
+ store volatile i1 %tz.cmp, i1* %c
%pop = tail call i32 @llvm.ctpop.i32(i32 %b) nounwind readnone
%pop.cmp = icmp eq i32 %pop, 0
- volatile store i1 %pop.cmp, i1* %c
+ store volatile i1 %pop.cmp, i1* %c
ret void
; CHECK: @cmp.simplify
; CHECK-NEXT: entry:
; CHECK-NEXT: %lz.cmp = icmp eq i32 %a, 0
-; CHECK-NEXT: volatile store i1 %lz.cmp, i1* %c
+; CHECK-NEXT: store volatile i1 %lz.cmp, i1* %c
; CHECK-NEXT: %tz.cmp = icmp ne i32 %a, 0
-; CHECK-NEXT: volatile store i1 %tz.cmp, i1* %c
+; CHECK-NEXT: store volatile i1 %tz.cmp, i1* %c
; CHECK-NEXT: %pop.cmp = icmp eq i32 %b, 0
-; CHECK-NEXT: volatile store i1 %pop.cmp, i1* %c
+; CHECK-NEXT: store volatile i1 %pop.cmp, i1* %c
}
-
-define i32 @cttz_simplify1(i32 %x) nounwind readnone ssp {
- %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %x) ; <i32> [#uses=1]
- %shr3 = lshr i32 %tmp1, 5 ; <i32> [#uses=1]
+define i32 @cttz_simplify1a(i32 %x) nounwind readnone ssp {
+ %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %x, i1 false)
+ %shr3 = lshr i32 %tmp1, 5
ret i32 %shr3
-
-; CHECK: @cttz_simplify1
+
+; CHECK-LABEL: @cttz_simplify1a(
; CHECK: icmp eq i32 %x, 0
-; CHECK-NEXT: zext i1
+; CHECK-NEXT: zext i1
; CHECK-NEXT: ret i32
}
-declare i32 @llvm.ctlz.i32(i32) nounwind readnone
+define i32 @cttz_simplify1b(i32 %x) nounwind readnone ssp {
+ %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %x, i1 true)
+ %shr3 = lshr i32 %tmp1, 5
+ ret i32 %shr3
+
+; CHECK-LABEL: @cttz_simplify1b(
+; CHECK-NEXT: ret i32 0
+}
+
+define i32 @ctlz_undef(i32 %Value) nounwind {
+ %ctlz = call i32 @llvm.ctlz.i32(i32 0, i1 true)
+ ret i32 %ctlz
+
+; CHECK-LABEL: @ctlz_undef(
+; CHECK-NEXT: ret i32 undef
+}
+
+define i32 @cttz_undef(i32 %Value) nounwind {
+ %cttz = call i32 @llvm.cttz.i32(i32 0, i1 true)
+ ret i32 %cttz
+; CHECK-LABEL: @cttz_undef(
+; CHECK-NEXT: ret i32 undef
+}
+
+define i32 @ctlz_select(i32 %Value) nounwind {
+ %tobool = icmp ne i32 %Value, 0
+ %ctlz = call i32 @llvm.ctlz.i32(i32 %Value, i1 true)
+ %s = select i1 %tobool, i32 %ctlz, i32 32
+ ret i32 %s
+
+; CHECK-LABEL: @ctlz_select(
+; CHECK: select i1 %tobool, i32 %ctlz, i32 32
+}
+
+define i32 @cttz_select(i32 %Value) nounwind {
+ %tobool = icmp ne i32 %Value, 0
+ %cttz = call i32 @llvm.cttz.i32(i32 %Value, i1 true)
+ %s = select i1 %tobool, i32 %cttz, i32 32
+ ret i32 %s
+
+; CHECK-LABEL: @cttz_select(
+; CHECK: select i1 %tobool, i32 %cttz, i32 32
+}
projects / oota-llvm.git / blobdiff