ifstmt.td
1.89 KB
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// RUN: llvm-tblgen %s | FileCheck %s
// RUN: not llvm-tblgen -DERROR1 %s 2>&1 | FileCheck --check-prefix=ERROR1 %s
// RUN: not llvm-tblgen -DERROR2 %s 2>&1 | FileCheck --check-prefix=ERROR2 %s
// Test at top level.
// CHECK-NOT: def aNo
// CHECK: def aYes
if 0 then def aNo;
if 1 then def aYes;
// Test inside a foreach, with condition based on the iteration variable.
// CHECK: def bNotThree1
// CHECK: def bNotThree2
// CHECK: def bNotThree4
// CHECK: def bThree3
foreach i = 1-4 in {
if !eq(i, 3) then {
def "bThree" # i;
} else {
def "bNotThree" # i;
}
}
// Test inside a multiclass, with condition based on a multiclass parameter.
multiclass Multi<int i> {
def Unconditional;
if !eq(i, 2) then
def Cond;
if !ge(i, 3) then
def ThenRec;
else
def ElseRec;
}
// CHECK-NOT: def c1Cond
// CHECK: def c1ElseRec
// CHECK-NOT: def c1ThenRec
// CHECK: def c1Unconditional
defm c1: Multi<1>;
// CHECK: def c2Cond
// CHECK: def c2ElseRec
// CHECK-NOT: def c2ThenRec
// CHECK: def c2Unconditional
defm c2: Multi<2>;
// CHECK-NOT: def c3Cond
// CHECK-NOT: def c3ElseRec
// CHECK: def c3ThenRec
// CHECK: def c3Unconditional
defm c3: Multi<3>;
// Test resolution of the dangling-else ambiguity.
// CHECK: def dThenElse00
// CHECK-NOT: def dThenElse1
// CHECK-NOT: def dThenElse11
// CHECK: def dThenThen01
foreach i = 0-1 in
foreach j = 0-1 in
if !eq(i,0) then
if !eq(j,1) then
def "dThenThen"#i#j;
else // binds to the inner if, not the outer one
def "dThenElse"#i#j;
// Error tests: ensure you can't put an if inside a def or class.
#ifdef ERROR1
def baddef {
int x = 3;
// ERROR1: [[@LINE+1]]:3: error: Unknown token when expecting a type
if 1 then {
int y = 4;
}
}
#endif
#ifdef ERROR2
class badclass<int i> {
int x = 3;
// ERROR2: [[@LINE+1]]:3: error: Unknown token when expecting a type
if !eq(i, 5) then {
int y = 4;
}
}
#endif