[InstCombine] don't drop metadata in FoldOpIntoSelect()
llvm-svn: 287980
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 2529c47..cdbc8eb 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -819,9 +819,9 @@
}
}
- Value *SelectTVal = foldOperationIntoSelectOperand(Op, TV, this);
- Value *SelectFVal = foldOperationIntoSelectOperand(Op, FV, this);
- return SelectInst::Create(SI->getCondition(), SelectTVal, SelectFVal);
+ Value *NewTV = foldOperationIntoSelectOperand(Op, TV, this);
+ Value *NewFV = foldOperationIntoSelectOperand(Op, FV, this);
+ return SelectInst::Create(SI->getCondition(), NewTV, NewFV, "", nullptr, SI);
}
/// Given a binary operator, cast instruction, or select which has a PHI node as
diff --git a/llvm/test/Transforms/InstCombine/select_meta.ll b/llvm/test/Transforms/InstCombine/select_meta.ll
index 27c0c1c..82a85e5 100644
--- a/llvm/test/Transforms/InstCombine/select_meta.ll
+++ b/llvm/test/Transforms/InstCombine/select_meta.ll
@@ -17,6 +17,17 @@
ret i32 %5
}
+define i8 @shrink_select(i1 %cond, i32 %x) {
+; CHECK-LABEL: @shrink_select(
+; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 %x to i8
+; CHECK-NEXT: [[TRUNC:%.*]] = select i1 %cond, i8 [[TMP1]], i8 42, !prof ![[MD1]]
+; CHECK-NEXT: ret i8 [[TRUNC]]
+;
+ %sel = select i1 %cond, i32 %x, i32 42, !prof !1
+ %trunc = trunc i32 %sel to i8
+ ret i8 %trunc
+}
+
define void @min_max_bitcast(<4 x float> %a, <4 x float> %b, <4 x i32>* %ptr1, <4 x i32>* %ptr2) {
; CHECK-LABEL: @min_max_bitcast(
; CHECK-NEXT: [[CMP:%.*]] = fcmp olt <4 x float> %a, %b