-; RUN: llvm-as < %s | llc -march=x86-64 > %t
-; RUN: not grep and %t
-; RUN: not grep movz %t
-; RUN: not grep sar %t
-; RUN: not grep shl %t
-; RUN: grep add %t | count 2
-; RUN: grep inc %t | count 4
-; RUN: grep dec %t | count 2
-; RUN: grep lea %t | count 2
+; RUN: llc < %s -mcpu=generic -march=x86-64 | FileCheck %s
; Optimize away zext-inreg and sext-inreg on the loop induction
; variable using trip-count information.
+; CHECK-LABEL: count_up
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: incq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @count_up(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = and i64 %indvar, 255
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%indvar.i24 = and i64 %indvar, 16777215
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fmul double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 10
ret void
}
+; CHECK-LABEL: count_down
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: addq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @count_down(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = and i64 %indvar, 255
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%indvar.i24 = and i64 %indvar, 16777215
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fmul double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = sub i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 0
ret void
}
+; CHECK-LABEL: count_up_signed
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: incq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @count_up_signed(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = ashr i64 %s0, 8
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%s1 = shl i64 %indvar, 24
%indvar.i24 = ashr i64 %s1, 24
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fmul double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 10
ret void
}
+; CHECK-LABEL: count_down_signed
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: addq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @count_down_signed(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = ashr i64 %s0, 8
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%s1 = shl i64 %indvar, 24
%indvar.i24 = ashr i64 %s1, 24
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fmul double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = sub i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 0
ret void
}
+; CHECK-LABEL: another_count_up
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: addq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @another_count_up(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = and i64 %indvar, 255
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%indvar.i24 = and i64 %indvar, 16777215
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fmul double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 0
ret void
}
+; CHECK-LABEL: another_count_down
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: addq $-8,
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @another_count_down(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = and i64 %indvar, 255
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%indvar.i24 = and i64 %indvar, 16777215
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fdiv double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = sub i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 18446744073709551615
ret void
}
+; CHECK-LABEL: another_count_up_signed
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: addq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @another_count_up_signed(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = ashr i64 %s0, 8
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%s1 = shl i64 %indvar, 24
%indvar.i24 = ashr i64 %s1, 24
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fdiv double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 0
ret void
}
+; CHECK-LABEL: another_count_down_signed
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: decq
+; CHECK-NOT: {{and|movz|sar|shl}}
+; CHECK: jne
define void @another_count_down_signed(double* %d, i64 %n) nounwind {
entry:
br label %loop
%indvar.i8 = ashr i64 %s0, 8
%t0 = getelementptr double* %d, i64 %indvar.i8
%t1 = load double* %t0
- %t2 = mul double %t1, 0.1
+ %t2 = fmul double %t1, 0.1
store double %t2, double* %t0
%s1 = shl i64 %indvar, 24
%indvar.i24 = ashr i64 %s1, 24
%t3 = getelementptr double* %d, i64 %indvar.i24
%t4 = load double* %t3
- %t5 = mul double %t4, 2.3
+ %t5 = fdiv double %t4, 2.3
store double %t5, double* %t3
%t6 = getelementptr double* %d, i64 %indvar
%t7 = load double* %t6
- %t8 = mul double %t7, 4.5
+ %t8 = fmul double %t7, 4.5
store double %t8, double* %t6
%indvar.next = sub i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, 18446744073709551615